Doses above 1mg do not proportionally increase pigmentation the dose-response curve flattens due to receptor saturation but do increase nausea and flushing rates from 812% to 1520%
National Library of Medicine: Intestinal microbiota metabolism of L-carnitine, a nutrient in red meat, promotes atherosclerosis.
For consistent energy throughout the day, taking L-Carnitine in the morning or with meals is effective, especially for cognitive benefits from Acetyl-L-Carnitine
WIRES Nanomed Nanobi 9 (2), e1410
The effects of concurrent Coenzyme Q10, L-carnitine supplementation in migraine prophylaxis: A randomized, placebo-controlled, double-blind trial
These aim to complementother aspects of a weight loss regimen, including exercise and a low calorie diet