How much b12 do I need?

Hi everyone, I have never written before, but have been reading your post for months before my surgery which was Dec 5,05. I have loss 100lbs since then, and feel great. I had some blood work done for my surgeon, who I won't see until next month. But my primary physican called me and said my B12 was low. Does anyone know how much I should be taking? I would appreciate any help. Thanks again. Lynn

Lynn, I personally get a b12 shot once a month. That is all my surgeon requires. But, I also know people who not only get the b12 shot, the also take the b12 supplement. Melissa

I wouldn't worry too much on over doseing on B-12. I was taking mega B-12 sublinguals, and when I got my test results last week, my results were above 2000 over the max. The doctor wasn't a bit worried about it because we eliminate what we don't use thru our urine. I only take B-12 once a week now. I was taking it every day. Janet

Thanks so much for responding, I have started taking my b12s every other day instead of once a week. I think the ones I bought were not enough milligrams. Thanks again to both of you. Lynn