Optimizing Sleep for Better Performance & Quality of Life Life Extension Benefits of Acetyl L Carnitine Simply Supplements L Theanine Benefits, Uses, Side Effects, Dosage, Foods Dr. Axe Insomnia, Cognitive Impairment, or a Combination of Both, Alter Lipid Metabolism Due to Changes in Acylcarnitine Concentration in Older Persons 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. L Carnitine Levocarnitine: View Uses, Side Effects and Medicines