KAL? Lean Amino + 7-Keto DHEA is a unique combination of ingredients. Lean Amino uses pharmaceutical grade, free form L-Arginine. L-Carnitine is an essential nutrient found in nearly all cells of the body. 7-Keto DHEA is a natural metabolite of DHEA. Like DHEA, 7-Keto DHEA is formed naturally within the body. This unique combination, along with a healthy diet and meal plan, is intended to provide nutritive support for healthy fat metabolism.