(PubMed) Clarke R, Smith AD, Jobst KA, Refsum H, Sutton L, Ueland PM
Replacement therapy for vitamin B12 deficiency: comparison between the sublingual and oral route
Others notice nothing at all
Cysteine is found in most high protein foods, such as chicken, turkey, yogurt, cheese, eggs, sunflower seeds, and legumes
Funding This study was funded by the Veterans Affairs Merit Awards I01 BX004625 (Sun) and I01 BX006372-01 (Sun), and the Career Research Scientist award IK6BX005647 (Sun) with additional support from the National Institute of Neurological Disorders and Stroke of the National Institutes of Health under award R01NS127372-02 (Simon)
But as we wrote in the intro, the topic is complex and controversial so here are some of the questions that keep coming up around slathering EGF all over our face