What Causes B12 Side Effects?
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- čas přidán 6. 07. 2024
- Are you having B12 side effects, like heart palpitations or digestive issue after taking B12 or B vitamins? In this video, we look at these side effects and what typically causes them. We also look at what some of the common side effects are and how common they occur. B12 Side Effects
B12 side effects are not very common. However, they do occur in a segment of the population. Most of the time these "side effects" are not a true B12 side effect. Think about it. B12 is an essential part of our natural biochemistry. To have a side effect to that is contradictory to how your biochemistry naturally works. That doesn't mean you can't be sensitive to something in the B12 or B complex that you took or even B12 itself. Because B12 is an essential part of how your biochemistry works, it's not very common that it is actually B12 causing the side effects or reactions. More common it is something that's in with the B12 that you took. Before we get into the common reasons for these side effects or triggers from B12, let's look at the. Let's look at what some of these side effect reactions etc that people have from taking B12.
Causes of Digestive B12 Side Effects
Nausea, bloating, upset stomach, and various digestive symptoms are one of the more commonly reported side effects from taking B12. In these cases, they are often taking a B complex that they swallow. This contains B12 but also has the other B vitamins other than B12. All B vitamins feed bacteria. If you get digestive symptoms after taking B12, often there is a bacterial overgrowth or possibly fungal overgrowth creating the digestive symptoms. Anytime patients tell me they have a reaction from taking B vitamins, like nausea or some kind of digestive symptom, I automatically think that they might have some microbial issue. It's not always the case but it does come to mind. If that happens to be your issue, taking your B vitamins or B12 in the form of injection, might resolve the issue. We wouldn't expect the injection to do this because it bypasses the overgrowth.
Causes of Anxiety B12 Side Effects
Another common side effect or issue reported from taking B12 or B vitamins is anxiety, heart palpitations and difficulty sleeping. B12 definitely can do this but it is more common for other B vitamins to do this. If you get a B12 injection and it stings, that means it's not just B12. B12 does not sting but the other B vitamins do. You want to differentiate which one of them is causing the issue. You could just get B12 alone and see how you react to that. If you are getting these palpitations from just B12, then you know it from the B12 only.
If you know for sure that you only take B12, swallowing or injection, and you get anxiety or heart palpitations, consider taking a much smaller dose. Take the smallest amount that you think would not create a reaction. Start with that and gradually work up to higher doses. Once you find the dose that is not creating these problems, over time your body may adjust to it and you won't have such a strong reaction. Sometimes palpitations and anxiety occur when there is a big deficient. As result, your body will get very stimulated from the B12. Sometimes the same bacterial issue that causes digestive issues from swallowing the B12 can also cause these heart palpitations, anxiety etc. The same issue wouldn't be expected though when you take an injection. If you have both the digestive issues and the anxiety and palpitations when you swallow it, we wouldn't expect the same thing when you take an injection.
Other Cause of B12 Side Effects
Another thing to consider is what's in the B vitamins too. Sometimes people think they are just taking a plain B 12 or B complex and there are other things in there, like probiotics or prebiotics and other herbs. These can cause reactions too. Make sure you check all the ingredients to ensure you are not sensitive to one of those things. Also when you take B12 as a sublingual tablet or chewable form, it will usually contain sugar alcohols like xylitol etc. That gives it sweet taste but those can can definitely cause digestive issue for some people.
If switching the route of administration and dosage don't help, you may also have like a substrate issue. B12 is used to recycle homocysteine. Homocysteine comes from amino acid cysteine and methionine. If your levels of cysteine and methionine are low, the B12 has nothing to do once you intake it. That's called methyl trapping. You can check your fasting homocysteine to see if your homocysteine levels are low. This may indicate a bigger problem going on (inflammation) or just simply a protein deficiency. However people with low homocysteine, mostly don't have these negative reactions to taking B12 as an injection or oral. Still it could be part of the problem in your situation. - Věda a technologie
I HAD A B12 INJECTION LAST WEDNESDAY, AND I SAW BLACK SPOTS. I WENT HOME, BUT I WILL LET MY DOCTOR KNOW, AND I DO NOT WANT IT ANYMORE. THANKS FOR SHARING.
thanks for sharing
Same thing happened to me, are you feeling better now?
🚨🛑🚨very valuable information indeed, thank you doc. 👍🏼👏🏼
You’re welcome thank you
im having joint aches when taking methylcobalamin
I have recently had racing heart issues followed by syncope. I just found out my B12 levels are way too high. Could there be a correlation between the two?
Hello Doctor. This is exactly what I am suffering from. Namely, anxiety, palpitation and sleep disturbance. As I noticed, this happens when taking drugs containing methyl forms of vitamins b. Complexes with cyanocobalamin (up to 200 mcg), which I take, gave a short-term reaction within an hour, which eventually passed. While the reaction from methyl complexes lasted about two days. (My homocysteine is around 10 units.) And I found an explanation for this in Amy Yasko tolerance panel. According to this, as a carrier of the homozygous val158met mutation, I should focus on other forms, mainly hydroxo. How common is this point of view? On the net, I saw information that hydroxocobalamin also causes palpitations, and it is less common. And what form of vitamin B do the tests reveal? Also what is the antidote if caught a heartbeat from vitamin b? I think I saw you somewhere that it is glycine?
Doctor iam on b 12injection ana I feel pain on my shoulders what can I do
What if you're bleeding for 10 days and three weeks ago was your period and the new month coming up to Rg Lurch. We're about 10.
Hi- I have been getting a lot of acne and acne scarring , had been taking hydroxocobalamin shots and then now on liquid methyl (oral). Tried methyl shots too before.Acne persists in all cases and lots of clogging of pores, getting acne on body too. Weird thing is the only thing that has helped is taking psyllium husk fiber (1 - 1.5 tblspoons per day in water). I read somewhere b12 changes the skin bacteria. Know anything else to help?
psyllium husk helps remove toxins from the body.
Hello Doctor!, thanks for the very informative video. It's been almost two months that I started feeling burning sensation in my feet. Sometimes I feel it in both feet. Sometimes in left or right feet. I read somewhere that low B12 levels can cause peripheral neuropathy and permanent damage to the small tiny nerves in feet. So I got my blood work done to see the B1, B6 and B12 levels. The report came out as normal and the reading are within the range. Even though the B12 reading is normal at 280 pg/mL, I feel the levels should be greater than 400 pg/mL. for optimal nerve function. So I am planning to go in for a B12 injection to boost the level. Can you please suggest what is the best dosage to start with to ensure no sever side effects before going in for higher dose? I appreciate your kind help!
No bc everyone is different and most don't have side effects from B12. If you are worried you can start with 1/2 or 1/4 of standard dose which is 1000mcg.
was taking a complex with 5000 mcg of the Methyl form , 2000 mcg of the Hydroxy form, 5440mcg of Folate and. 2mg of B6 for about 8-10 months. Started to develop a vague burning of my skin ( mostly Nose) then progressed to my legs and pretty much entire body. My B12 lab work was >2000. My PCP denies that the supplement could have caused this. Everything else was pretty normal but bilirubin was 1.3. 3mos after discontinuing the supplement my symptoms rage on with normal Blood work. Possible PN from this?
Yes it is possible.
Hello. I started to take injected b12 (cianocobalamin) 1000mcg. I had the first shot on last Wednesday (half of the vial), then on Thursday 1 vial of 1000mcg , and on Saturday 1 vial of 1000 mcg. So on Saturday I started with muscle spasms and today Sunday I continue with the spasms even after I stopped taking more B12. I'm a bit worried. There's anything that I can do now?
Thank you so much.
it will subside in a few days or so. I don't recommend taking cyanocobalamin though.
I am allergic to cobalamin. Over the years I’ve had reactions to eating liver, mushrooms and a few other foods high in cobalamin. Now I can hardly eat meat. I can’t wear makeup that has cobalt in it. It’s confusing but I have to live with it. I also react to nickel and iron.
Sorry to hear that. Probably have trouble with b12 then too.
I am hypothyroid and react to pure sublingual bioactive B12 (mix of methylcobalim and adenosylcobalim) by having palpitations. My B12 serum levels were low but not below range (298 on scale 200 to 900) so I am unsure why I have this reaction except perhaps it is overstimulating me as I have never tried this type of B12 before (I usually go for the cheaper supplements and never had reactions to them although I also find iodine and Vitamin E very stimulating and will be awake all night if take them, sometimes for days afterwards after just one dose).
I have tried reducing the dose and doing it only every few days but I still react even to a small drop of this stuff. Any idea what may be going on?
Hard to say...very deficient, inflammation, other vitamin/nutrient deficiencies.
Would it give yellow in your eyes I have itching in my scalp and face.
No
Question about methylcobalamin B12
I dunno if I Have MTHFR, But every 2 weeks I just take 500MCG of B12 I always got an injection a few times a year, always got a kick of energy from it, I think it was my IBS causing a lack of absorption however is it safe to take that every 2 weeks and question on l-methylfolate how much can i take of that as i dot eat many dark greens for folate, its it safe to take l-methylfolate even if you don't have MTHFR? say 1000MG with that B12 once a fornight? ir can l-methylfolate be toxic I know B12 isn't toxic but I read it was best to take B12 with Folate?
if you could answer these question i would appreciate it
Hi TheRatzor, small doses of methylfolate should not cause any problems for most people. Those that are sensitive should talk to their doctor.
@@swintegrative Guess a better question is can you overdo on B9-folate, I know B12 is almost impossible but
So if I Had 1000MCG every 3-4 days would that be safe?
Thanks
should be but you can over do it.
@@swintegrative Just to make sure, would that be dangerous if I overdid it or would I get a headache or something warning signs, etc and most are water-soluble body pee out the excess ill probably limit it to once per week or something
How about tachycardia and elevated bp? I took methylcolabamin b12 sublingual tablets 1000 mcg and by day 3 of this I had what seemed possibly a reaction from the B12. The tachycardia though didn’t start until 4 hours after taking the b12. And the tachycardia episode itself lasted for 4 hours! We’re talking tachy, 130-160 resting bmp for a long time, along with extreme restlessness and physical discomfort/tension.
Thoughts? Could this have been an imbalance being highlighted?
Hello how are you now how is your bp
I had the same issue, but I took Cyna-Colabamin at 1000mcg, day 3 like you, I ended up in Hospital with heart from 120 to 130, crazy blood pressure changes, my heart rate lasted for like 4 hours also. With in a day of taking it, I was at the doctor with pals, then hospital visit second day, then ER on the third. I still had intermittent issues of racing heart after I stopped taking it. I decided to take a B12 tablet, 2 week later to test it, and I felt anxious with hours, had lay in bed, then at night, I couldn't sleep as my heart would start racing as soon as I tried to doze off. I told the doctors this, they didn't really believe it caused it.
I had the same issue. My Dr recommended 2000 mcg of b12 because my level was 230. One morning I took the recommended dosage ( it was sublingual methylcobalamin) instantly my heart rate shot up to 170 and I had to go the bathroom but also broke out in a cold sweat. I went to the ER and they took me directly to the back and ran a bunch of tests. My blood pressure was also high 140. I did not have high blood pressure previously.
The ER released me and asked I follow up with cardiologist.
I completed different tests and they said my heart is fine. However now I have heart palpitations and feel breathless. My B12 is lower now, but I’m too afraid to take anything other than food. I even tried nutritional yeast and I get a racing heart, not as extreme but enough to scare you.
Don’t know what to do …
@@timmy6588thank you so much for your comment. I will definitely try it. It’s the heart palpitations that scare me the most, I just want to feel normal again. I understand it will take some time.
started a plant based diet about 2 months ago. I use to have hypertension but have been off my med for a month now. I started taking vitamin methyl-b12 two days ago and have been taking them daily. The first morning I took them that following night my blood pressure shot up. Then today three days later it did this morning. Has anyone else experienced this. I was fine before I started taking B12. I only started taking it because of a plant based CZcamsrs video. I think I’m just going to cut out the b12
Saturday i take 250ug b12 supplement cyanocobalamin. And sometimes i have headache, anxiety and heart palpitationsand feel my body is like a rock my muscle is tight, it disappeare when i eat a meal. How long last side effects, Saturday i take first and last dose, today is a Tuesday ?
Usually lasts just a few days to a week if and when it is from B12.
interesting because when i was taking b12 spray i felt like my anxiety went off the roof at times and felt some heart palpitations so i stopped taking it
i have a b12 deficiency , and i have gut issues , and a racing heart , since i am getting hydrocobamine ( b12 ) shots 1000 microgram , my heart is doing much better, i had to wear a device to measure my heart beat from the cardiologist , at the same time the other doctor that was treating me for my stomach gave me the b12 , 10 shots total 2 per week , my heart feels way better and when i told this to my cardiologist she went ???? I thought she would know about the b12 , but she didn't !!!!
Hello i need your advice i was recently diagnosed with b12 deficiency and my doctor give me b12 shot in my muscle and another through iv but i couldn't continue taking the injection because i have side effects my body feel heavy and tired and fatigued and i get pain all over my body and and my mental health change i have really bad anxiety and panic attacks and vision problems and fear and i feel disconnect from my body and everything around me and i cannot get up to do much and i feel out of place all the time ,burning sensation in my body and irritable and when i told the doctor he said that its all in my head but its not its been one month now and i don't know why this happened or what to do
You might look into other kinds of b12. 👍
Hi Joy, have you recovered from it? I had shot 2 days before and I'm getting severe body aches
Hi thank you for your video! I'm nervous because I first did my own B12 injection into the butt area, following the correct method, and I now have a sore lump not visible, but intermuscular. Its been a month...Then I went to have a doctor do the next one on the other side, and after a week, I now have another lump on the other side underneath the skin😢
Has anyone had something similar?
That’s not very common w b12 shot but can happen from any shot be sure to discuss with your doctor about that
@@swintegrative Thank you... Yeah I went to the doctor and he said the liquid has most likely accumulated forming a lump :( I have an appointment scheduled to see if it can be extracted if it doesn't diminish on its own
Hello,
I'm B12 deficient “ 157 pg\ml”; I started cyanocobalamin 1000 mcg, but it makes me feel disoriented with a headache. I have chills without a fever, pain all over my body, low energy, and paleness
I stopped it, and I have tried reducing the dose to around 300 mcg. I cut the tablet into three pieces, but still, I'm not feeling well after taking my supplement.
My diet is normal. I eat everything except red meat.
What should I do
Thanks
Don’t use cyanocobalamin… maybe try different versions.
@@RealTrophyWifey Thanks for u
Methylcobalamin only.
5 years ago i trying suicide and ate 40 tablet vitamin b dosage and by the grace of god i didn't die but it give me hard to walke and all my body becomes veryhard especially my upperfeet very hard to walke i feel dizziness confusion slow to take no sleeping and my nerve very hard what have to do
I'm dizzy getting dizzy and light-headed, I have heard that high dose b12 can cause low potassium and low potassium can cause dizziness?
hum, never heard that before.
@@swintegrative if you search for it you can find some info here and there. eg Dr ben lynch talks about b12 and electrolytes / potassium if you know who he is he is good at b12 and folate.
@@miklooo8080 Yes I do. It looks like this is happening when people are very deficient in B12 and have anemia. With these deficient states the introduction of B12 stimulates erythropoiesis (increased red blood cell production) The increased cells increases the need for potassium and can lower the serum potassium. Thanks for pointing this out!
@swintegrative yes makes sense. I am very low on b12 just started taking 1000 mcg and started getting the pulsatile tinnitus which is frequently low potassium!! Yet I eat tonnes of veggies! What do you suggest?
4:42 I thougt low homocysteine was good and high homocysteine was a sign of things gone awry?
below 6 is a sign of inflammation and increased activity of the CBS enzyme
@@swintegrative interesting.
So it should be roughly between 6 and 9?
@@banzobeans 7-9
Skin rash
All these comments not one positive one why do people take this injection 😂
Vast majority have favorable results form B12 shots FYI
Can it increase bp
Not likely
This guy looks like he does some extra corricular activities