Frontiers The effect of L carnitine supplementation on lipid profile in adults: an umbrella meta analysis on interventional meta analyses Understanding the Benefits and Uses of Carnitine in Health and Fitness Fitness Health Acetyl L Carnitine Benefits Blood Pressure and Blood Sugar Health in Those at Risk for Cardiovascular Disease Natural Health Research Comparison of short term and long term effects of peroral L carnitine intake: clinical implications of elevated TMAO levels in cardiovascular complications