What is lean muscle Protein Powder?

Lean muscle protein powder is one which is high in protein content but contains as little or no fat or carbohydrate. Fats and carbohydrates are easily converted to stored fat, but a lean protein powder should only supply what is needed for muscle development. The exception with carbohydrates is dietary fiber, which while a carbohydrate it is not easily converted into stored fat and is important for staying regular and preventing constipation.