Twinlab Mega L-Carnitine Description: Helps Metabolize Fay into Energy Supports Cardiovascular Function Gluten Free Mega L-Carnitine nutritionally has a role in metabolizing fat into energy. L-carnitine can promote muscle mass and help reduce fatigue. In the body, L-carnitine is produced by the liver and kidneys and is stored in the skeletal muscles, heart and brain. L-carnitine also supports cardiovascular function and helps reduce oxidative stress. Free Of Added starch, corn, yeast, wheat, flavors, colors, derivatives and preservatives.