The main reason some people may experience a fishy taste, smell, or burp when taking fish oil is that they are not taking a high quality #fishoil supplement. When it comes Comprehensive review of the expanding roles of the carnitine pool in metabolic physiology: beyond fatty acid oxidation Journal of Translational Medicine Springer Nature Link The Role of l Carnitine in Mitochondria, Prevention of Metabolic Inflexibility and Disease Initiation L Carnitine: Benefits, Uses, and Side Effects Lifespan Research Institute