Under the Dietary Supplement Health and Education Act (DSHEA), a dietary supplement must contain a dietary ingredient (such as a vitamin, mineral, herb/botanical, amino acid, or other dietary substances used to supplement the diet)
Theanine has been shown to increase cancer cell apoptosis and decrease cancer cell growth, decrease liver cirrhosis, decrease nephrotoxicity, and decrease vascular remodeling
Nevertheless, a GFD is increasingly recommended for individuals with autoimmune thyroiditis, exposing to the risk for unnecessarily worsening the quality of nutrition
Esaki M, Matsumoto T, et al
Researchers should design protocols with this translational gap in mind