They are also good sources of B12, so including these in your diet can help maintain adequate B12 levels. Vitamin B12 is not found in foods such as vegetables, grains, and fruits. So, vegetarians, ...
so you need to get it from outside sources like meat, dairy, eggs, fortified foods, and supplements, the NIH says. Most adults need 2.4 micrograms of vitamin B12 a day, although the numbers are ...