When pigs eat a plant-based meal with synthetic B12 (cyanocobalamin), their bodies don't seem to absorb it — there's no measurable amount showing up in their gut system compared to a meal without it.

18

Pro

0

Against

Evidence from Studies

Supporting (1)

18

Community contributions welcome

18

Bioavailability of vitamin B12 in cows' milk

Randomized Controlled Trial

Animal

2012 Jan

The study gave pigs meals with synthetic B12 and found their bodies didn’t absorb it, just like the claim says.

Contradicting (0)

0

Community contributions welcome

No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Bioavailability of vitamin B12 in cows' milk

Score: 18

DOI: 10.1017/S0007114511002364

Similar Assertions

Pigs absorb way more vitamin B12 from cow's milk than from a lab-made version, and they don’t absorb the lab version at all — their bodies only seem to take in the natural kind.

18

0

83%

In pigs, heating or filtering cow's milk doesn't change how well vitamin B12 gets absorbed in the gut — it's the same whether the milk is raw, pasteurized, or microfiltered.

18

0

71%