Protein is crucial for muscle synthesis because it provides the essential amino acids required for muscle repair and growth. After exercise, especially resistance training, protein synthesis must exceed protein breakdown to facilitate muscle recovery and hypertrophy. Consuming adequate amounts of high-quality protein sources, such as lean meats, fish, eggs, and plant-based options, can enhance recovery times and improve overall muscle mass accumulation. Moreover, protein intake is vital not just for athletes but also for anyone seeking to maintain or improve muscle strength and metabolism as they age.