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A member asked:
Gastric bypass 6 months ago. is 2500 mcg b12/daily too much? will my kidneys jus flush out the excess essentially wasting it?
A doctor has provided 1 answer
Yes, you are wasting: Daily requirement of B12 is less than 3 microg , even with gastric by gastric bypass you produce intrinsic and can absorb it in the distal ileum , any excess beyond liver storage capacity will be eliminated by the body . Vegans also need supplementation . Speak to your doctor , if you want your B12 levels could be checked.
Answered 3/13/2020
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