Vegetarian Times actually printed a letter from a registered dietician last month who claimed that nutritional yeast was not a reliable source of B12. She went so far as to compare it to tempeh, sea vegetables, fermented foods, and other unreliable sources that may contain no B12 or B12 analogs. She then said that vegans should get their B12 from supplements, fortified soy milks, and other fortified foods.
I cannot believe that the magazine printed such an idiotic letter with no response.
Nutritional yeast IS a fortified food. It has B12 added. How can it be any less reliable than fortified soy milk or supplements?
I am rapidly losing respect for the magazine (not that I had much to begin with).