Inhibition of androgen receptor can decrease fat metabolism by decreasing carnitine palmitoyltransferase I levels in skeletal muscles of trained mice Nutrition & Metabolism Springer Nature Link 1 L Carnitine This amino acid plays a crucial role in fat metabolism and has been shown to support testosterone levels by improving androgen receptor activity. It also enhances muscle recovery and algorx L Carnitine Tartrate Does It Help Burn Fat? AS IT IS Nutrition Role of L carnitine in female infertility Reproductive Biology and Endocrinology Springer Nature Link JCI Sex, cells, and metabolism: Androgens temper Th17 mediated immunity