B12 is found in animal products because they are given as a supplement. Bacteria produce B12. That's why it's just as effective if we take the supplement directly, without going through the animal. Whether there is bioavailable B12 in fermented foods and algaes like spirulina and chlorella has been disputed for many years...What is definitely important to know is that vitamin B12 is heat unstable. This means that the food must also be eaten raw...And who eats raw animal/based "food" these days on a daily base?
I also take B12 supplements, even though I am pretty sure, that our body builds it itself and we can absorbe it from our intestine, when we have a healthy digestion.
Oddbean new post about login | logout