daily amount of l-carnitine L-Carnitine, 500 mg Veggie Capsules L-Carnitine HCl Powder | Amino

Washington D.C.: National Academy Press

One placebo-controlled, double-blind, cross-over trial in 86 subjects with fertility issues found that supplementation with L-carnitine (2 g/day) for two months improved sperm quality, as evidenced by increases in sperm concentration and motility (111)

For Brain and Cognitive Health: If your goal is mental clarity and focus, Acetyl-L-Carnitine (ALCAR) is the preferred form

Int J Sport Nutr Exerc Metab

A 2014 systematic review and meta-analysis of 31 randomized controlled trials in a total of 1,734 patients with ESRD found that L-carnitine treatment administered either orally or intravenously resulted in reductions of serum C-reactive protein (a marker of inflammation and predictor of mortality in patients undergoing hemodialysis) and LDL-cholesterol, although the latter was not deemed to be clinically relevant (73)

(PubMed) Inglis JE, Lin PJ, Kerns SL, et al