The gut and amino acid homeostasis
Gynecological Endocrinology , 33(7), 558-562
[DOI] [PMC free article] [PubMed] [Google Scholar] 78.Smoday I.M., Petrovic I., Kalogjera L., Vranes H., Zizek H., Krezic I., Gojkovic S., Skorak I., Hriberski K., Brizic I., et al
The reality check: the FDA does not consider it a legal cosmetic or dietary ingredient, and there is real concern that long-term use raises the risk of melanoma (skin cancer) the opposite of what most people assume a tan in a vial would do for skin safety (WebMD)
It is a key supplement for people suffering from pernicious anemia, and for vegetarians and vegans that have vitamin B12 deficiencies related to dietary choices
Januszewski, and T