A lean muscle gainer is a specialized supplement designed to promote lean muscle growth while minimizing body fat accumulation. Unlike traditional mass gainers, lean muscle gainers contain a precise blend of high-quality proteins and essential amino acids, with minimal carbohydrates. They aim to sculpt and tone the physique, utilizing ingredients like whey isolate and BCAAs for muscle recovery. Ideal for those pursuing a defined appearance, they complement balanced diets and exercise routines effectively.