Unlike most other vitamins, vitamin B12 is not made by plants or animals. Rather, it is made from bacteria. Thus, the argument that vegans can make their own B12 from intestinal bacteria seemingly makes sense. Some nutritionists like Dr. Charles Partito make compelling arguments about the existence of B12 in plants. Of course, the guy is trying to sell you his cleansing products though. The same goes for Dr. Vivian Vetrano who says that B12 coenzymes are readily found in raw plants. She’d like you to join her retreat.
There is no denying that algae is one of the true vegetarian super foods. Depending on the type of algae, it can be loaded with iron, calcium, iodine, and many other important nutrients for. But there is still a lot of controversy around whether algae is a good source of vitamin B12 for vegetarians and vegans. Here is what the experts have to say on the issue.
A lot of vegans will tout nutritional yeast as a good natural source of vitamin B12. What they dont realize is that the B12 found in nutritional yeast is actually a supplement and NOT natural.