Lean muscle protein powder is a type of dietary supplement that is specifically formulated to help build lean muscle mass. It typically contains a high concentration of protein, typically from sources such as whey, casein, or soy, along with limited amounts of carbohydrates and fat. The goal of using a lean muscle protein powder is to promote muscle growth and repair without adding excessive amounts of body fat. Some lean muscle protein powders may also include additional ingredients, such as vitamins, minerals, and amino acids, to support overall health and muscle growth. It is important to note that lean muscle protein powder should be used as a supplement to a balanced diet and regular exercise routine, not as a sole source of nutrition.