l carnitine and gut bacteria Full article: microbes with the gbu genes determine TMAO production from L-carnitine intake serve as a biomarker for precision nutrition Discovery of a Gut Bacterial
Description
Read more about low testosterone over 40 here

Postbiotics-A step beyond pre-and probiotics

Akpinar P, Atici A, Ozkan FU, Aktas I, Kulcu DG, Sar A, et al

Ketonethiosemicarbazones: structure-activity relationships for their melanogenesis inhibition

Lymphocytes derived from SCID (severe combined immunodeficient) mice transplanted with p65 -deficient fetal liver cells displayed normal development and IL-2 expression but were defective in their proliferative response to various mitogens (108)
