When you eat fish, sheep meat, or chicken, your body absorbs vitamin B12 from them at different rates—fish gives you about 42% of the B12, sheep meat gives you 56% to 89%, and chicken gives you 61% to 66%, so not all meats give you the same amount of this important vitamin.

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Evidence from Studies

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Vitamin B12 Sources and Bioavailability

Narrative Review

2007 Nov

The study measured how well people absorb vitamin B12 from different meats and found the same numbers as the claim: fish gives about 42%, sheep meat 56–89%, and chicken 61–66%, so yes, your body absorbs them differently.

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Source Study

Vitamin B12 Sources and Bioavailability

Score: 1

DOI: 10.3181/0703-MR-67

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