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Do vitamin B12 supplements have any side effects?
My vitamin b12 levels have gone from 800 to 1200 in one month even though I have stopped taking multi vitamin supplements. Im vegetarian. Im 55 and worried sick I have cancer?
My vitamin B12 level is 346.2 pg/mL. Is it low enough to cause symptoms such as tremors? (it's in the normal range but low side). Should I take supplements ?
I am taking: vitamin B12, ferrous sulfate vitamin D3, and daily vitamins for women. Q:which one should be taken with food? Q:can I take (10,000mcg biotin with 100mg keratin) supplement alongside the other supplements? Q:Can I take them all at once?
My vitamin B12 levels are high. 1136 to be exact. The doctor isnt concerned and said dont worry about it, but I dont take supplements. Do I need to get a second opinion? I just read high levels of b12 can signal cancer?
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