I have updated my recommendation for B12 supplementation. I now suggest at least 2,000 mcg (µg) cyanocobalamin once each week, ideally as a chewable, sublingual, or liquid supplement taken on an empty stomach, or at least 50 mcg daily of supplemental cyanocobalamin (you needn’t worry about taking too much). You can also do servings of B12-fortified foods three times a day (at each meal), each containing at least 190% of the Daily Value listed on the nutrition facts label (based on the new labeling mandated to start January 1, 2020-the target is 4.5 mcg three times a day). Note that those over age 65 only have basically one option, taking 1000 micrograms a day.
B12 is real. I was taking 2500mcg METHYLCOBALAMIN sublingually each day and then I foolishly switched to 1000mcg internally daily and I didn't notice what it was doing to me until it was too late. I got anemia and was in very poor health at least a month. I finally started taking 5000mcg daily again and was in recovery, consuming as much iron as I could while taking an iron supplement for at least a month, maybe 2, and was recovering from the anemia probably closer to 3 or 4 months total. It was truly miserable. I felt that I was in very poor health. My energy levels were terrible. My mental capacity was blunted. I FELT on edge and wrong all the time unless I ate something really high in iron, in which case I felt beautiful and amazing and relaxed, but that only lasted for some hours afterwards. I finally healed and I'm so thankful to have my life back! I'm super physically active, mentally sharp, and productive all day every day ♥️💯🔥 I wake up at 3am and run cardio, go prepare my meals for the day, hit strength training and meditation, and then get after my list of targets for the day. I was feeling amazing before anemia, but I'm quickly getting in even better than I was before the anemia (which was superb). I never dreamed my life could be like this before I went WFPB vegan. Now I know the power of diet. I know I'm taking much more than recommended, but it works for me and I've never seen any compelling science that shows high B12 intake as a problem. Before I went vegan I remember feeling old at 24 and thinking "This is supposed to be the best I feel in my whole life. What's wrong with me?" I stopped eating meat for ethical reasons and later went fully vegan for the same reasons, but then became very interested in my health, which led me to whole foods. My start to veganism was horrible as well. I didn't know I needed to take B12 and I started feeling like I might end up in a hospital any day. My health was super bad. I could bike 3 miles and it would literally take me WEEKS to get to the same energy levels as before the bike ride. On top of that, my heart would have these moments randomly where it felt like it was struggling and might fail. It felt wretched, truly awful. At this point I sought health care and was put on some supplements including B12. Nowadays, I only take a B12 supplement and a D3 supplement during the summer actually, because I live in the desert where it's so hot that we spend most of our time indoors to avoid the heat. One last thing to share. From a very young age and all through my life until I went vegan and also got it right, I DESPISED physically pushing myself in terms of aerobic exercise or strength training. Seeing how this never changed throughout my whole life, I never really enjoyed sports, I never got into running, and I certainly never enjoyed strength training. I also assumed that it was simply my genetics and therefore there was nothing I could do about it -boy was I mistaken! Although there was a period for a short time in my life where I did strength training every day with a trainer, I never enjoyed the actual training -I only appreciated the benefits that it would bring me. Now, however I absolutely LOVE physically pushing myself! 😁 Running is one of my FAVORITE things in the *_entire_* world and strength training is right up there as well. ♥️ I never dreamed that my life could be this amazing I never dreamed that my health could become this incredible and yet it's simply gaining momentum and I know I'm nowhere near where it can get to and this is all thanks to a whole foods plant-based vegan diet! edit Clarified that it's METHYLCOBALAMIN, *not CYANOcobalamin*
Wow, i've been taking a supplement of 9.9 mcg (4 times the suggested intake in my country) for a long time once a day. Why we need to have an intake that's much greater than the recommended intake, like the 50 mcg? Why is it better to take on an empty stomach? There is some video on the right way to take supplementation? EDIT: Found why we have to take much more: czcams.com/video/K13KUpiYSyQ/video.html
@@joaopedrorocha5693 It depends on how you take it. Sublingually, you'll get most of your B12, but orally, you'll only get maybe 50% or less because of the way your digestive system works.
@@joaopedrorocha5693 Your stomach acid alone destroys about half of orally taken B12 right off the bat and after that you still have to absorb it. That's why sublingual is ideal, but mine is so high that I don't mind occasionally taking it more internally, on the top of my tongue, because it tastes so good haha 😅😏 btw I am taking methylcobalamin, not cyanocobalamin edit clarification
I had multiple B12 deficiency symptoms but had been taking sublingual B12 for years. My B12 serum was fine; my homocysteine & MMA (both urine & blood) were fine. MCV ok. Apparently adequate folate can mask B12 deficiency. BUT further testing showed a transcobalamin deficiency. So it was followed up with intrinsic factor antibody test. The test was positive for IF antibodies (12.9 A unit/mL). So that means a diagnosis of PA. It's incredibly complex.
This new format and constant teasing for the next video is undesirable at best! I used to be a huge supporter of Nutrition Facts, but it's become fluff ran like a sitcom! Time to get back to basics Dr. Greger!
Agreed. For the love of God stop this already. Now I pause at the start and read the comments first to see if I should actually spend the time watching a video
I actually downvoted the video because of it. I mean, if he's able to give us the information now - why tease us so we have to look for the other video? I also would love to see less of himself (no offense) because he can be quite distracting.
I’ve read MTHFR variations are actually pretty common. This means those people affected can’t utilize cyanocobalamin properly, which is why methylcobalamin is better. Most people with MTHFR gene mutations don’t know they have it.
Be sure to check with your insurance company before ordering a homocystiene test. Aetna covered it in 2018 for me but when my wife had it done they refused to pay and we got stuck with a $200 bill. It may require a pre-authorization. We went with MMA and folate tests. Just an FYI ...
I would love it if Dr. Greger would talk about the various types of vitamins added to fortify foods and the possible effect of synthetic, or synthesized vitamins on the body. I believe a form of B12, called cyanocobalamin which is derived from the cyanide molecule IS NOT SAFE for older people whose bodies cannot remove the cyanide via their kidneys as efficiently as younger people. Cyanocobalamin is more easily absorbed than the other forms of B12, but the other forms like methylcobalamin are retained longer in the body. I found that taking cyanocobalamin B12 triggered gout (an extremely painful form of arthritis) in my body. That’s when I realized that other vitamins used to fortify foods like white flour, could also trigger certain symptoms in my body like indigestion, arthritis aches & pains etc. So of course I try to avoid all processed, fortified foods. I’m too sensitive to the synthetic (created for patenting so must include slightly different formula from the formula for natural vitamins) vitamins- my body can’t utilize them - they end up being more poison than supplement.
Eelke Aptroot yea but even whole grain bread only contains 20-40mcg/100g. Adults need 300mcg per day. Chickpeas contain 300+mcg/100g and Kale almost 200mcg
You can only link the next video after you have made the video and it is live on CZcams. It’s a nightmare to go back to every older video you make and link the next one. Playlists would be a better idea.
I've found B12 pills that have lactose in them. What does that mean, did anybody else have the same issue? Manufacturer said that there are no animal products involved but they might be lying
@@happygimp0 I've read about it, some manufacturers use lactose to form pills because of its compressibility properties. Can't say how much is in there, probably not much, but it's better to get veg ones anyway
Does anyone in the comments know a good B12 supplement that is as clean as possible ? Everything I find in the pharmacies in my area is full of added sweeteners, coloring chemicals and whatnot.
Press the bell icon by the Subscribe button after you subscribe and you will be notified every time a new video comes out. If there's any series, they'll be listed on his CZcams channel under "Playlists"
Canker sores can be a symptom of b12 deficiency. I was experiencing them on a daily basis for over a year until I decided to get my levels tested and now that I take a supplement they are a more rare occurrence.
Always tired, need at least 10 hours of sleep to feel rested, basic tasks take forever, after eating the food just "sits there"and you never get energy from it so you're always hungry, poor digestion, always bloated,forgetful, exhaustion after short periods, could almost fall asleep standing up, depression, hard to breath, always late, slow cognitive, etc. Many of the b12 symptoms can mimic as an iodine deficiency instead. People say it takes a year for a b12 deficiency to show but I feel fatigued within a month if I don't take any.
Mine were tingling in my fingers and fatigue. The low B12 wasn't diagnosed and it progressed to MS like symptoms. I have to get regular shots now as I have pernicious anemia. I'm glad Dr. Greger is putting out videos like this. I believed the plant based Dr.s of the 80s and 90s who said not to worry about B12.
So if I had to chose between mma test and serum. Which should I go with? Which would determine a more accurate level of how low I am and how much I should supplement with. Anyone Thanks
Hi Doctor Greger. My fiancee has recently been diagnosed with a brain tumor. We both went vegan a little bit over a year ago. She found a good neurosurgeon who will be removing the tumor in about a month's time. However, she is facing immense pressure from the doctor, her parents and friends, to eat animal products. The doctor even said "you can't recover from the surgery if you don't eat meat". Her parents think that her tumor was from the vegan diet. I don't know how to support her in fighting all these nonsense. Do you or anyone reading this have any tips on what nutrients / food to eat more or be more careful about post surgery..? This is so frustrating and stressful for her.
I'm so sorry. I hope that things worked out ok for your fiance. I think that if you can find a vegan doctor, she can lean on them for support on dealing with pressure in the future.
@@yuppers1 hey thanks for the kind words! yes she's fine! Will be having her secomd post operation annual MRI scan in October, fingers crossed! Of course we stayed vegan the whole time, her recovery was very rapid too!
B12 is produced by bacteria that make it on plants. An animal or human can eat that same plant and get enough B12 (2.4mcg). More importantly though, B12 deficiency is only a problem if you lack a chemical called the "intrinsic factor," which causers people to be unable to absorb B12. Intrinsic factor production is reduced as dietary fat increases. This is by far the most common cause of B12 deficiency. Doctors can easily test whether a person has a normal ability to absorb B12. For those who do not, NO AMOUNT OF THE VITAMIN IN THE DIET WILL HELP. THUS, ALL OF US, VEGETARIANS AND MEAT EATERS ALIKE, ARE AT RISK OF B12 DEFICIENCY. A high fat diet increases this risk substantially, for two reasons. First, the colonies of B12 producing bacteria in our intestines utilize carbohydrates for fuel. As the amount of fat in our diets goes up, the amount of carbohydrate goes down, thus reducing the quantity of fuel available to the microbe. Less fuel results in a smaller colony and an overall decrease in B12 production. Second, the B12 uptake sites in our intestines become clogged when there is excess fat in the diet, further reducing B12 absorption When reduced B12 production is couple with impaired absorption, the likelihood of B12 deficiency becomes predictable. The situation is further complicated by the fact that many refined starchy foods are "enriched" with a synthetic form of vitamin B12. When doctors test for "normal" B12 levels, their results are skewed towards the high end by the fact that most people eat these foods(mostly grain products--cereals, breads, pasta, cookies, cakes, etc) on a daily basis. People who eat a grain-free diet not supplemented by this poor imitation of the natural nutrient often test "low" for B12, even if their levels are healthy and they are totally asymptomatic. This is because their B12 levels are being compared to those of people who are consuming a B12 supplement in their food at almost every meal. B12 deficiency can cause anemia. Symptoms of this type of anemia include: fatigue and weakness, weight loss, and sore tongue. It can also cause a neurological disorder. Symptoms of this neurological disorder include: numbness and tingling of hands and feet, memory changes, poor balance, and depression. If you don't have all of those symptoms then you don't have B12 deficiency. You have nothing to worry about. If you want to get checked for intrinsic factor levels, that is the only sure fire way to see if you're susceptible to it. As I mentioned, if you don't have enough intrinsic factor, no amount of B12 will help. Intrinsic factor is lowered by the amount of fat eaten, so watch your fat intake and you won't have to worry about B12 and many other diseases.
It's high time that a distinction were made between "vegetarian" and "vegan", at least in studies such as these, whose numbers can be skewed by counting cheese omelet-consumers among the "vegetarians". Sigh.
Dr. Greger, is a Holo-Transcobalamin test good enough, meaning that if the values are in the higher upper levels, let's say 75/100 pmol/l meaning that should be a good indication of NO b12 deficiency? Would be great if you can answer, thank you!
When I took B12 Supplement (250mcg a day) I always had burning mouth for days. I'm so confused because I googled and saw that burning mouth is mostly because of B12 deficiency. I don't know what is really happening. Any tips? Maybe low quality of supplement? Thanks.
I have IBD and bile acid malabsorption dairy intolerance. found out my B12 AND my active B12 is low!? What's the difference between b12 and active b12. My active b12 is 26 but my b12 levels are 152?
Homocysteine 29, vitamin b12 seems fine, folate with severe deficiency, vitamin d 8, hypercholesterolemia, i have celiac disease. Can be my active b12 low ?
I don't get how did vegetarians survived 200 years ago when supplementation wasn't an option, were they all deficient? Is it not possible to be a vegetarian without supplementation? Doesn't that mean that it's not "natural" to be a vegetarian?
B12 is created by bacteria. It was once very abundant in our food and water supply. However we started treating our water to kill bacteria to prevent bacterial infections which historically has been a leading cause of death. Because our supply is now sterile it's difficult to get your b12 naturally unless you eat dirt or drink water from an untreated source.
Don't forget the supplement trees. And all the saisonal / exotic fruits and veggies were flown around the planet with pterodactyls (Yes, I watched the Flintstones)
I was an openly irresponsible vegan for a few years (still vegan, but much smarter now), and I fear I have permanent nerve damage/issues from it. Though much better with it now, I have loss of sensitivity/feeling in my skin in random parts all over my body. Easily triggered nerve pain in others. Like if I put pressure on my right knee I feel a knife in the side of my leg and my skin gets hot and numb. One episode I had was if I moved a muscle above my eyebrow I would feel like a knife was getting jabbed in the back of my head, and again, burning feeling. I read that these are symptoms of b12 deficiency but no dr has been able to prove it. They recommended I see a neurologist but that isn’t so easy. Am I experiencing permanent effects of my neglect? Or can my nerves return to stability?Are these something totally different? Any feedback would be great. Again, for the past 2 years I have been loyal to my b12 and feel good about it. Smarter these days.
I wonder if your nerve issues were a result of a "irresponsible vegan diet" or something else like Lyme disease or exposure to a toxin? Either way, I hope you're experiencing better health and access to health professionals.
Mykind Organics B12 is good I also like the Solgar brand of vitamins. Vivo do a B12 supplement that has a blend of three different types of B12 that sounds interesting.
I think he recommends taking cyanocobalamine, cause it's cheap and has been tested a lot. Except for that small portion of folks that don't "methelate" well or something, in that case methylcobalamine is better or perhaps even hydroxycobalamine, from what I remember him mentioning in previous vids on the topic.
Okay what NEXT? Homocysteine, MMA = NORMAL... What next? Still have symptoms, but normal markers in serum, mma, homocystein etc... Tired of test chasing. So frustrating...
@@ParadymShiftVegan Depends on where you are. They are more routine in Europe and Australia than in the US. Also some people have absorption problems. (Sublingual is better than oral for those with this problem.)
@@carl13579Well put mate, Injections saved my life but I have permanent nerve damage. I am one who discovered after a bowel operation my body was not absorbing b12 about 8yrs after the fact.
@@blueaqua9300 Among other things. The worst was neuropathic pain over my arms and legs initially but it spread over time. I was sleeping up to 16hours a day and was on pain meds. Restless legs, brain fog and memory problems where also major issues. My situation was complicated due to nerve damage in my back after I had a car accident so my doctor always assumed it was the cause. I would not wish this creeping death on anyone so I would recommend a proper test for everyone.
How about reading the whole page. How about also stating where, when and who wrote each of these pages. I have an idea, why didn't you just say, get your b 12 checked.
@@bm.6349 He's the only one left. There are no more vegan doctors praising this stupid diet. They've all crawled away into the woodwork or died off. He's the only nutcase left. Listen at your own peril.
The best diet for every thing! But you might still get a stroke, so take a supplement. This "sience" based nonsense does not withstand the sniff test. Conformation bias at it worst.
I have updated my recommendation for B12 supplementation. I now suggest at least 2,000 mcg (µg) cyanocobalamin once each week, ideally as a chewable, sublingual, or liquid supplement taken on an empty stomach, or at least 50 mcg daily of supplemental cyanocobalamin (you needn’t worry about taking too much). You can also do servings of B12-fortified foods three times a day (at each meal), each containing at least 190% of the Daily Value listed on the nutrition facts label (based on the new labeling mandated to start January 1, 2020-the target is 4.5 mcg three times a day). Note that those over age 65 only have basically one option, taking 1000 micrograms a day.
B12 is real. I was taking 2500mcg METHYLCOBALAMIN sublingually each day and then I foolishly switched to 1000mcg internally daily and I didn't notice what it was doing to me until it was too late. I got anemia and was in very poor health at least a month. I finally started taking 5000mcg daily again and was in recovery, consuming as much iron as I could while taking an iron supplement for at least a month, maybe 2, and was recovering from the anemia probably closer to 3 or 4 months total.
It was truly miserable. I felt that I was in very poor health. My energy levels were terrible. My mental capacity was blunted. I FELT on edge and wrong all the time unless I ate something really high in iron, in which case I felt beautiful and amazing and relaxed, but that only lasted for some hours afterwards.
I finally healed and I'm so thankful to have my life back! I'm super physically active, mentally sharp, and productive all day every day ♥️💯🔥
I wake up at 3am and run cardio, go prepare my meals for the day, hit strength training and meditation, and then get after my list of targets for the day.
I was feeling amazing before anemia, but I'm quickly getting in even better than I was before the anemia (which was superb).
I never dreamed my life could be like this before I went WFPB vegan. Now I know the power of diet.
I know I'm taking much more than recommended, but it works for me and I've never seen any compelling science that shows high B12 intake as a problem.
Before I went vegan I remember feeling old at 24 and thinking "This is supposed to be the best I feel in my whole life. What's wrong with me?"
I stopped eating meat for ethical reasons and later went fully vegan for the same reasons, but then became very interested in my health, which led me to whole foods.
My start to veganism was horrible as well.
I didn't know I needed to take B12 and I started feeling like I might end up in a hospital any day.
My health was super bad. I could bike 3 miles and it would literally take me WEEKS to get to the same energy levels as before the bike ride.
On top of that, my heart would have these moments randomly where it felt like it was struggling and might fail. It felt wretched, truly awful.
At this point I sought health care and was put on some supplements including B12. Nowadays, I only take a B12 supplement and a D3 supplement during the summer actually, because I live in the desert where it's so hot that we spend most of our time indoors to avoid the heat.
One last thing to share.
From a very young age and all through my life until I went vegan and also got it right, I DESPISED physically pushing myself in terms of aerobic exercise or strength training.
Seeing how this never changed throughout my whole life, I never really enjoyed sports, I never got into running, and I certainly never enjoyed strength training. I also assumed that it was simply my genetics and therefore there was nothing I could do about it -boy was I mistaken!
Although there was a period for a short time in my life where I did strength training every day with a trainer, I never enjoyed the actual training -I only appreciated the benefits that it would bring me.
Now, however I absolutely LOVE physically pushing myself! 😁
Running is one of my FAVORITE things in the *_entire_* world and strength training is right up there as well. ♥️
I never dreamed that my life could be this amazing I never dreamed that my health could become this incredible and yet it's simply gaining momentum and I know I'm nowhere near where it can get to and this is all thanks to a whole foods plant-based vegan diet!
edit Clarified that it's METHYLCOBALAMIN, *not CYANOcobalamin*
Wow, i've been taking a supplement of 9.9 mcg (4 times the suggested intake in my country) for a long time once a day. Why we need to have an intake that's much greater than the recommended intake, like the 50 mcg? Why is it better to take on an empty stomach? There is some video on the right way to take supplementation?
EDIT:
Found why we have to take much more: czcams.com/video/K13KUpiYSyQ/video.html
@@joaopedrorocha5693 It depends on how you take it. Sublingually, you'll get most of your B12, but orally, you'll only get maybe 50% or less because of the way your digestive system works.
@@joaopedrorocha5693 Your stomach acid alone destroys about half of orally taken B12 right off the bat and after that you still have to absorb it.
That's why sublingual is ideal, but mine is so high that I don't mind occasionally taking it more internally, on the top of my tongue, because it tastes so good haha 😅😏
btw I am taking methylcobalamin, not cyanocobalamin
edit clarification
@@joaopedrorocha5693 And yes, Dr. Greger has videos about it, that's where I learned this info.
I had multiple B12 deficiency symptoms but had been taking sublingual B12 for years. My B12 serum was fine; my homocysteine & MMA (both urine & blood) were fine. MCV ok. Apparently adequate folate can mask B12 deficiency. BUT further testing showed a transcobalamin deficiency. So it was followed up with intrinsic factor antibody test. The test was positive for IF antibodies (12.9 A unit/mL). So that means a diagnosis of PA. It's incredibly complex.
Further testing doing what test ? How did you find transcobalamin deficiency? You glossed over that and jumped right to the IF antibody test.
2:33 MMA Urine test. Elevated MMA is a specific marker of B12 deficiency while elevated Homocystein levels occur in B12 but also in Folate deficiency.
This new format and constant teasing for the next video is undesirable at best! I used to be a huge supporter of Nutrition Facts, but it's become fluff ran like a sitcom! Time to get back to basics Dr. Greger!
Agreed. For the love of God stop this already. Now I pause at the start and read the comments first to see if I should actually spend the time watching a video
I actually downvoted the video because of it. I mean, if he's able to give us the information now - why tease us so we have to look for the other video? I also would love to see less of himself (no offense) because he can be quite distracting.
I’ve read MTHFR variations are actually pretty common. This means those people affected can’t utilize cyanocobalamin properly, which is why methylcobalamin is better. Most people with MTHFR gene mutations don’t know they have it.
Thx Dr Greger! looking forward to the final video!
which one is the final video?
You just reminded me to take my Vitamin B supplement. I'm eagerly awaiting the next video on this.
@goodmorning1221 don't forget your blood pressure meds!
@goodmorning1221 WHAT?
@@crarls27 Don't need these, thank you.
@@LindaR423 I was replying to the absurd person that replied to you before me, not you. Lol.
@@crarls27 Sorry
Such a good point! Serum B12 should not be the only tested biomarker. MMA is great to study with serum B12 as well as homcysteine!
Be sure to check with your insurance company before ordering a homocystiene test. Aetna covered it in 2018 for me but when my wife had it done they refused to pay and we got stuck with a $200 bill. It may require a pre-authorization. We went with MMA and folate tests. Just an FYI ...
I would love it if Dr. Greger would talk about the various types of vitamins added to fortify foods and the possible effect of synthetic, or synthesized vitamins on the body. I believe a form of B12, called cyanocobalamin which is derived from the cyanide molecule IS NOT SAFE for older people whose bodies cannot remove the cyanide via their kidneys as efficiently as younger people. Cyanocobalamin is more easily absorbed than the other forms of B12, but the other forms like methylcobalamin are retained longer in the body. I found that taking cyanocobalamin B12 triggered gout (an extremely painful form of arthritis) in my body. That’s when I realized that other vitamins used to fortify foods like white flour, could also trigger certain symptoms in my body like indigestion, arthritis aches & pains etc. So of course I try to avoid all processed, fortified foods. I’m too sensitive to the synthetic (created for patenting so must include slightly different formula from the formula for natural vitamins) vitamins- my body can’t utilize them - they end up being more poison than supplement.
I wish Greger would talk about MTHFR gene mutations and ability to absorb cyanocobalamin
Great video sir..love your mannerism..nd it's good to finally put a face and all other details to tje voice i have heard in all the videos..
Folate is not added to flour in germany and probably neither in the rest of europe?
Sounds like another reason to eat whole grains...
Eelke Aptroot yea but even whole grain bread only contains 20-40mcg/100g.
Adults need 300mcg per day. Chickpeas contain 300+mcg/100g and Kale almost 200mcg
@@StephyGrowsWeed Eating some beans and greens can't hurt...
@@StephyGrowsWeed Greens are where you're gonna get that folate. Dark leafy greens specifically! 💯♥️
@@StephyGrowsWeed Beans are pretty good source as well.
The 3 healthiest foods on the planet anyways are dark leafy greens, berries, and legumes 😁😁😁
If you're going to mention the next video, use CZcams functions to create clickable links on screen to get to the next one.
You can only link the next video after you have made the video and it is live on CZcams. It’s a nightmare to go back to every older video you make and link the next one. Playlists would be a better idea.
Thank you for your valuable information 😊
thanks, greger.. great man.🙏🙏🙏
I've found B12 pills that have lactose in them. What does that mean, did anybody else have the same issue? Manufacturer said that there are no animal products involved but they might be lying
Get ones that say vegan on the label.
Yeah unfortunately, there is a disparity in the way manufacturers and restaurants seriousness in treating veganism.
That's disingenuous. Many people are lactose intolerant (aka weaned). There's no such thing as lactose not from a mammary gland
Are there significant amounts or does it say it can contain traces?
@@happygimp0 I've read about it, some manufacturers use lactose to form pills because of its compressibility properties. Can't say how much is in there, probably not much, but it's better to get veg ones anyway
Does anyone in the comments know a good B12 supplement that is as clean as possible ? Everything I find in the pharmacies in my area is full of added sweeteners, coloring chemicals and whatnot.
It's good to look for purity. Superior Source sublingual B12 was the cleanest I could find.
What series? When and where is it available? Retiring minds want to know.
Press the bell icon by the Subscribe button after you subscribe and you will be notified every time a new video comes out.
If there's any series, they'll be listed on his CZcams channel under "Playlists"
Dr. Greger, can high b12 levels sometimes mean you are actually deficient- if a person has IBS or Celiac Disease for example
Like your scientific approach
THANKS Dr. Grager and Team!!!!
Among fatigabity what are the clinical symptoms that can show a vit b12 deficiency ?thank u
Canker sores can be a symptom of b12 deficiency. I was experiencing them on a daily basis for over a year until I decided to get my levels tested and now that I take a supplement they are a more rare occurrence.
Always tired, need at least 10 hours of sleep to feel rested, basic tasks take forever, after eating the food just "sits there"and you never get energy from it so you're always hungry, poor digestion, always bloated,forgetful, exhaustion after short periods, could almost fall asleep standing up, depression, hard to breath, always late, slow cognitive, etc. Many of the b12 symptoms can mimic as an iodine deficiency instead. People say it takes a year for a b12 deficiency to show but I feel fatigued within a month if I don't take any.
Garrett B thank u 💐
MonieMcLovin thanku💐
Mine were tingling in my fingers and fatigue. The low B12 wasn't diagnosed and it progressed to MS like symptoms. I have to get regular shots now as I have pernicious anemia. I'm glad Dr. Greger is putting out videos like this. I believed the plant based Dr.s of the 80s and 90s who said not to worry about B12.
So if I had to chose between mma test and serum. Which should I go with? Which would determine a more accurate level of how low I am and how much I should supplement with. Anyone Thanks
I think both if you can, but it seems like the MMA test is slightly better
Thank you Dr Greger and team! You are saving lives every day!
Absolutely.
Thanks for this!
No, not the ending, the suspense is killing me! More to think about as usual.
hope i don't die before the suggestion video is released
😂
How the hell are we supposed to find "the next video in the series"?
I can't wait to hear this at home b12 test...
Hi Doctor Greger. My fiancee has recently been diagnosed with a brain tumor. We both went vegan a little bit over a year ago. She found a good neurosurgeon who will be removing the tumor in about a month's time. However, she is facing immense pressure from the doctor, her parents and friends, to eat animal products. The doctor even said "you can't recover from the surgery if you don't eat meat". Her parents think that her tumor was from the vegan diet. I don't know how to support her in fighting all these nonsense. Do you or anyone reading this have any tips on what nutrients / food to eat more or be more careful about post surgery..? This is so frustrating and stressful for her.
I'm so sorry. I hope that things worked out ok for your fiance. I think that if you can find a vegan doctor, she can lean on them for support on dealing with pressure in the future.
@@yuppers1 hey thanks for the kind words! yes she's fine! Will be having her secomd post operation annual MRI scan in October, fingers crossed! Of course we stayed vegan the whole time, her recovery was very rapid too!
Great video
Thank you so much!!!! 😀
It was very entertaining! Like it.
What are your thoughts on adenocobalamin Dr Greger?
What about just foods like nutritional yeast, hemp seeds etc?
1:00
I wonder what the summary of this video is in 'human speak'
B12 is produced by bacteria that make it on plants. An animal or human can eat that same plant and get enough B12 (2.4mcg). More importantly though, B12 deficiency is only a problem if you lack a chemical called the "intrinsic factor," which causers people to be unable to absorb B12. Intrinsic factor production is reduced as dietary fat increases. This is by far the most common cause of B12 deficiency. Doctors can easily test whether a person has a normal ability to absorb B12. For those who do not, NO AMOUNT OF THE VITAMIN IN THE DIET WILL HELP. THUS, ALL OF US, VEGETARIANS AND MEAT EATERS ALIKE, ARE AT RISK OF B12 DEFICIENCY.
A high fat diet increases this risk substantially, for two reasons. First, the colonies of B12 producing bacteria in our intestines utilize carbohydrates for fuel. As the amount of fat in our diets goes up, the amount of carbohydrate goes down, thus reducing the quantity of fuel available to the microbe. Less fuel results in a smaller colony and an overall decrease in B12 production. Second, the B12 uptake sites in our intestines become clogged when there is excess fat in the diet, further reducing B12 absorption When reduced B12 production is couple with impaired absorption, the likelihood of B12 deficiency becomes predictable.
The situation is further complicated by the fact that many refined starchy foods are "enriched" with a synthetic form of vitamin B12. When doctors test for "normal" B12 levels, their results are skewed towards the high end by the fact that most people eat these foods(mostly grain products--cereals, breads, pasta, cookies, cakes, etc) on a daily basis. People who eat a grain-free diet not supplemented by this poor imitation of the natural nutrient often test "low" for B12, even if their levels are healthy and they are totally asymptomatic. This is because their B12 levels are being compared to those of people who are consuming a B12 supplement in their food at almost every meal.
B12 deficiency can cause anemia. Symptoms of this type of anemia include: fatigue and weakness, weight loss, and sore tongue. It can also cause a neurological disorder. Symptoms of this neurological disorder include: numbness and tingling of hands and feet, memory changes, poor balance, and depression. If you don't have all of those symptoms then you don't have B12 deficiency. You have nothing to worry about. If you want to get checked for intrinsic factor levels, that is the only sure fire way to see if you're susceptible to it. As I mentioned, if you don't have enough intrinsic factor, no amount of B12 will help. Intrinsic factor is lowered by the amount of fat eaten, so watch your fat intake and you won't have to worry about B12 and many other diseases.
Not ONE source of corroboration 🤦♂️🤦♂️🤦♂️
the brink thanks for this excellent explanation!
It's high time that a distinction were made between "vegetarian" and "vegan", at least in studies such as these, whose numbers can be skewed by counting cheese omelet-consumers among the "vegetarians". Sigh.
Dr. Greger, is a Holo-Transcobalamin test good enough, meaning that if the values are in the higher upper levels, let's say 75/100 pmol/l meaning that should be a good indication of NO b12 deficiency? Would be great if you can answer, thank you!
When I took B12 Supplement (250mcg a day) I always had burning mouth for days. I'm so confused because I googled and saw that burning mouth is mostly because of B12 deficiency. I don't know what is really happening. Any tips? Maybe low quality of supplement? Thanks.
Dr. Greger, I have a question: How to treat Helicobacter pylori infection naturally with food or anything else?
Thank you in advance,
Marinela
Whatever you try, use antibiotics as a last resort. It can destroy your gut microbiome.
@@lloydchristmas4547 Thanks for the advice :)
tried wheatgrass juice powder or liquid chloryphyll
@@lilytuffour4944 Thanks a lot :)
Where can you buy b12 nasal gel? Amazon seems to be pushing the spray b12. But I dont see nasal gel.
I have IBD and bile acid malabsorption dairy intolerance. found out my B12 AND my active B12 is low!?
What's the difference between b12 and active b12.
My active b12 is 26 but my b12 levels are 152?
is nutritional yeast enough
No. Supplementation is recommended over fortified foods
Homocysteine 29, vitamin b12 seems fine, folate with severe deficiency, vitamin d 8, hypercholesterolemia, i have celiac disease.
Can be my active b12 low ?
dude can you take my algebra exam for me lol
What about the breath test of B12 they came out with 2011/2012, any news here?
Well, allergies to foods and various vitamin supplements really suck!
Is it cool in a multivitamin or should it be individually supplemented?
Should be individual :)
I don't get how did vegetarians survived 200 years ago when supplementation wasn't an option, were they all deficient? Is it not possible to be a vegetarian without supplementation? Doesn't that mean that it's not "natural" to be a vegetarian?
B12 is created by bacteria. It was once very abundant in our food and water supply. However we started treating our water to kill bacteria to prevent bacterial infections which historically has been a leading cause of death. Because our supply is now sterile it's difficult to get your b12 naturally unless you eat dirt or drink water from an untreated source.
Don't forget the supplement trees. And all the saisonal / exotic fruits and veggies were flown around the planet with pterodactyls (Yes, I watched the Flintstones)
A higher Methylmalon acid you have that you higher you risk for cancer? I habe read old people havr a higher MMA as younger.
Legend
How many mcg of b12 are recommended per day?
how old are you? 1000 if 65 or older, or 50 if under 65 (or 2000 a week). cyanocobalamin
because when you take a large dose, the body can only absorb a fraction of it
Nobody watches Dr. Greger at 1.5X speed.
🤷♂️ ehh I definitely do a lot
I'm a speedy guy I like a lot of my videos on 2x. As fast as I can comprehend is just about right haha
@@ParadymShiftVegan 3x here, but it varies per video. Sometimes I go up to 3.4
mma home tests?
I was an openly irresponsible vegan for a few years (still vegan, but much smarter now), and I fear I have permanent nerve damage/issues from it. Though much better with it now, I have loss of sensitivity/feeling in my skin in random parts all over my body. Easily triggered nerve pain in others. Like if I put pressure on my right knee I feel a knife in the side of my leg and my skin gets hot and numb. One episode I had was if I moved a muscle above my eyebrow I would feel like a knife was getting jabbed in the back of my head, and again, burning feeling. I read that these are symptoms of b12 deficiency but no dr has been able to prove it. They recommended I see a neurologist but that isn’t so easy. Am I experiencing permanent effects of my neglect? Or can my nerves return to stability?Are these something totally different? Any feedback would be great. Again, for the past 2 years I have been loyal to my b12 and feel good about it. Smarter these days.
I wonder if your nerve issues were a result of a "irresponsible vegan diet" or something else like Lyme disease or exposure to a toxin? Either way, I hope you're experiencing better health and access to health professionals.
Sir what is the best supplement/brand for b12? Please reply.
Mykind Organics B12 is good
I also like the Solgar brand of vitamins.
Vivo do a B12 supplement that has a blend of three different types of B12 that sounds interesting.
I think he recommends taking cyanocobalamine, cause it's cheap and has been tested a lot. Except for that small portion of folks that don't "methelate" well or something, in that case methylcobalamine is better or perhaps even hydroxycobalamine, from what I remember him mentioning in previous vids on the topic.
We don't have science on that and Dr. Greger doesn't reply to comments in CZcams only on NutritionFacts.Org. Ask you question on the video thefe
Okay what NEXT? Homocysteine, MMA = NORMAL... What next? Still have symptoms, but normal markers in serum, mma, homocystein etc... Tired of test chasing. So frustrating...
Test holo-TC
I'm deficient. I've started B12 injections now
Even when I was so deficient I thought I was gonna end up in a hospital I just took them orally. Shots are for severe emergencies or money grabs.
@@ParadymShiftVegan Depends on where you are. They are more routine in Europe and Australia than in the US. Also some people have absorption problems. (Sublingual is better than oral for those with this problem.)
@@carl13579Well put mate, Injections saved my life but I have permanent nerve damage. I am one who discovered after a bowel operation my body was not absorbing b12 about 8yrs after the fact.
@@grasshair7266 and your symptoms are like what? Thingling and numbness?
@@blueaqua9300 Among other things. The worst was neuropathic pain over my arms and legs initially but it spread over time. I was sleeping up to 16hours a day and was on pain meds. Restless legs, brain fog and memory problems where also major issues. My situation was complicated due to nerve damage in my back after I had a car accident so my doctor always assumed it was the cause. I would not wish this creeping death on anyone so I would recommend a proper test for everyone.
Blick!
What does he mean by it’s too late??? So if you become deficient in B12, you can’t recover from that?
I understand that nerve damage may be reversible as long as the person doesn't wait too long.
How about reading the whole page.
How about also stating where, when and who wrote each of these pages.
I have an idea, why didn't you just say, get your b 12 checked.
Thiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiio another next
Hey, good idea, eat liver and salmon.
Or just take a pill
@@bm.6349 He's the only one left. There are no more vegan doctors praising this stupid diet. They've all crawled away into the woodwork or died off. He's the only nutcase left. Listen at your own peril.
@@bm.6349 PS..... Did you see how old this one is?
Taking my b12 while watching
My pills are methycobalmin :(
what's the matter?!
@@ParadymShiftVegan greger suggest cyanocobalamin
I'd like to see a study on which actually works better.
IndigoD Yes, my doctor told me to make sure and take the methyl-B12 not the cyano-B12. His reasoning was the same as yours.
So u mean its ok to have mecobalamin ?
Cant waait till the next one. Supplements always slow down my metabolism so i ll gain weight. Prefer foods instead of them.
The best diet for every thing! But you might still get a stroke, so take a supplement. This "sience" based nonsense does not withstand the sniff test. Conformation bias at it worst.