An easier way to go veggie: Vitamin B12 can be produced during dough fermentation

Grain-based materials fermented with Propionibacterium freudenreichii have enough vitamin B12 to be nutritionally significant. With the help of Lactobacillus brevis in the fermentation process, vegans can also be guaranteed a sufficient and safe B12 intake directly from grain-based food, without pills.

from Health & Medicine News -- ScienceDaily https://www.sciencedaily.com/releases/2020/08/200804111509.htm