Very quickly: Within several hours. All vitamins except B12 are absorbed in the first half of the small intestine. B12 is absorbed in the last part of the small intestine. Thanks for trusting HealthTap!
Answered 12/11/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
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