Some people use L-carnitine for muscle disorders associated with certain AIDS medications, difficulty fathering a child (male infertility), a brain development disorder called Rett syndrome, anorexia, chronic fatigue syndrome, diabetes, overactive thyroid, attention deficit-hyperactivity disorder (ADHD), leg ulcers, Lyme disease, and to improve athletic performance and endurance
Other documented findings include a tendency toward IGF-1 receptor desensitization with prolonged, continuous exposure, transient fluid retention in early study phases, and at supraphysiological exposure levels examined in some research acromegaly-like tissue changes
HUBERMAN: But in this case, there's just such an overwhelming amount of what I call anecdata
R.MiaoR.et al (2022c)