Any science about taking l carnitine, good bad beneficial? Asking for a friend. New study links L carnitine in red meat to heart disease Harvard Health Red Meat and Heart Disease: The Hidden Role of microbial L Carnitine & Choline Prof Luigi Fontana Comparison of short term and long term effects of peroral L carnitine intake: clinical implications of elevated TMAO levels in cardiovascular complications Did you know L carnitine, a vital amino acid, is naturally produced by your body and found in various foods? While acetyl L carnitine (ALCAR) can be a beneficial supplement for some, most people get