Protein powder is a powdered form of protein that is typically derived from various sources such as plants (like soybeans, peas, rice, potatoes, or hemp), eggs, or milk (including casein or whey protein). In addition to the protein content, these powders often contain other ingredients like added sugars, artificial flavorings, thickeners, vitamins, and minerals to enhance flavor, texture, or nutritional value. Protein powder is commonly used as a dietary supplement to support muscle growth, recovery, and overall protein intake, especially for athletes or those with increased protein needs.