What are Dr Greger's Vitamin B12 guidelines?

Some prefer to take a weekly or daily B12 supplement. Others prefer to get B12 via fortified foods. For supplementation, which one is preferable: methylcobalamin or cyanocobalamin? And what are some good fortified foods?

Vitamin B12 deficiency is serious. It can cause such a diverse set of symptoms in various organs in our body! Dr Greger has made video after video imploring vegans and those following Whole Food Plant-Based guidelines to make sure they consume B12 via supplements or fortified foods.

A couple of videos by Dr Greger on B12 testing.

Study after study shows that large percentages are vegans are low in B12.

Why do we have to consume Vitamin B12 as a supplement on WFPB Diet? Why are plants missing B12?

Summary videos by Dr Steven Lome, Dr Neal Barnard, Dr John McDougall, and others on B12.