We are pleased to announce that as of March 4, 2025, an updated Rich Text Editor has been introduced in the MyFitnessPal Community. To learn more about the changes, please click here. We look forward to sharing this new feature with you!

Does anyone take B12?

LKArgh
LKArgh Posts: 5,178 Member
edited November 2024 in Food and Nutrition
I was diagnosed with B12 deficiency and the dr started me as a trial on pills, with a plan to recheck in a few weeks to see if shots are needed. It is my second week and the last 2 days I am suffering from a constant headache. Obviously the headache could be completely irrelevant, but I was trying to figure out if I had changed anything in my diet, habits etc the last days, and then thought of the B12. Has anyone ever experienced this? I will talk to the dr if this continuous or get worse.

Replies

  • dmcbean
    dmcbean Posts: 1 Member
    I am currently taking B12. I am not have any side effects. You should log your symptoms and report it to your doctor.
  • x_blackrainbow
    x_blackrainbow Posts: 439 Member
    I take a B complex, and the only time I got headaches was when I ran out of it. I don't know if it was actually related.
  • Unknown
    Unknown
    edited September 2015
    This content has been removed.
  • mbaker566
    mbaker566 Posts: 11,233 Member
    when i took a pill that was strictly b complex, i started sleep walking.
    i don't take it any more but my fiber gummies have some b vitamins in them. they don't give me a side effect at all.

    no headache for me though
  • fromnebraska
    fromnebraska Posts: 153 Member
    B12 is a water soluble vitamin. Your body doesn't store this vitamin easily. Any excess goes out with your urine. I doubt the headaches are from too much B12 in your body.
  • southhamptonmike
    southhamptonmike Posts: 61 Member
    I had low B12 and just had a shot. No side affects. I also started taking zipfizz every morning to try and bolster my B and B12 vitamins
  • Azuriaz
    Azuriaz Posts: 785 Member
    catscats222 wrote: »
    Common side effects of vitamin B12:
    Headache
    Itching
    Swelling
    Nervousness and anxiousness
    Involuntary or uncontrollable movements
    Serious side effects:
    Low levels of potassium in the blood
    Congestive heart failure
    Clots in the arms and legs
    Life-threatening allergic reaction called anaphylaxis, in which you may have trouble breathing, your tongue swells and/or throat closes up, and your skin breaks out into hives
    Fluid building up in the lungs

    *Next time just google: side effects of too much B12.
    Look for sites like webmd or health.com (reputable sites).

    Er, thanks. No more overdoing my B12!
  • UltimateEscape
    UltimateEscape Posts: 95 Member
    aggelikik wrote: »
    I was diagnosed with B12 deficiency and the dr started me as a trial on pills, with a plan to recheck in a few weeks to see if shots are needed. It is my second week and the last 2 days I am suffering from a constant headache. Obviously the headache could be completely irrelevant, but I was trying to figure out if I had changed anything in my diet, habits etc the last days, and then thought of the B12. Has anyone ever experienced this? I will talk to the dr if this continuous or get worse.

    I take vitamin B12 every day when I take a multi vitamin. The link below will provide you with a run down of it and has a chart to tell you how much you need per day. Good Luck and Best Wishes.

    Vitamin B12
    U.S., National Library of Medicine
    https://www.nlm.nih.gov/medlineplus/ency/article/002403.htm

  • STCB7379
    STCB7379 Posts: 21 Member
    I am B12 deficient and just recently found out. I am also just taking pills for now with a recheck scheduled. I have not had any side effects. I would think the side effects would be more for people who are taking it and don't need it. Most people have enough B12 stored in their liver to last a long time so it is sad to me when I see it advertised like a miracle energy supplement. I know this post is older but I hope you've done well on getting your levels up. Do they know what caused your deficiency?
This discussion has been closed.

Categories