There are various synonyms for protein shake, depending on the specific purpose it serves. Some alternatives include protein smoothie, protein powder supplement, whey shake, gym shake, workout shake, power shake, muscle shake, and protein-packed drink. Other less common synonyms are protein-infused beverage, fitness shake, muscle-building drink, protein recovery drink, and performance-enhancing shake. These terms all refer to a drink or beverage that contains a high amount of protein and is commonly consumed to aid in muscle growth, repair, and recovery, mainly by fitness enthusiasts, athletes, and bodybuilders. The specific name given to a protein shake may depend on its consistency, taste, or the ingredients used to make it.