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A member asked:
Are there any negative effects of taking vit b12?
A doctor has provided 1 answer
Typically not: B12 is a water soluble vitamin so high doses are usually excreted out. However, you can get more than sufficient B12 from fish, chicken and meat. Typically only vegans need to supplement with vitamin b12.
Answered 6/24/2014
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Can i take vitamin B12 if my blood type is o negative? My friend said i can't take the injections if I have this blood type. Is that true?
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I've recently had 1000mg of B12 (apparently correct dose for my weight). Could this have an effect on my menstrual cycle? My last period was June 3. I have taken a pregnancy test that has come back negative.
5 doctors weighed in across 3 answers
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