Why should an athletes take Proteins?

Proteins are basically taken for their ergogenic properties of enhancing endurance and increasing or maintaining muscle mass to improve strength and size. The research has shown that if endurance activity extends beyond 90 minutes, the protein requirement is higher to achieve nitrogen balance. Protein and amino acid supplements are however, more popular with body-builder and strength-training athletes.

Each amino acid has unique metabolic properties and many of these have been hypothesized to enhance or improve exercise performance. Ingesting high amounts of single amino acids is contra indicated because they can affect the absorption of other essential amino acids and produce nausea or impair training and performance.