Mutual interaction between endoplasmic reticulum and mitochondria in nonalcoholic fatty liver disease Lipids in Health and Disease Springer Nature Link If you are like a lot of people, you may have never heard of carnitine but this important nutrient is critical for our body's ability to optimally burn fat required for energy. The intestinal microbial metabolite acetyl l carnitine improves gut inflammation and immune homeostasis via CADM2 ScienceDirect L Carnitine is Underrated. New Meta Review Reminds Us Why.