- Nootropic - Dietary Supplement - Gluten Free - Vegan - Non GMO - Supports Energy Metabolism - Supports Alertness & Mental Focus Acetyl L-Carnitine (ALC) is a nutrient and naturally occurring metabolite in the human body that is involved in macronutrient metabolism. Deficiencies in L-Carnitine can increase fatigue and decrease recovery rate following physical activity. A number of tissues contain significant concentrations of ALC but these decrease as we age and there is evidence that dietary supplementation can address these shortfalls. Suggested use Take 1 capsule per day with or without a meal or as directed by your qualified healthcare provider. Other ingredients Cellulose capsule and rice flour. Contains no added milk, egg, peanut, tree nut, fish, shellfish, soy, wheat, gluten or yeast ingredients.