India, Sept. 28 -- justify;">Protein is often associated with workouts, muscle building and gym routines. But its role extends far beyond exercise. Protein is an essential macronutrient that supplies amino acids the body uses to maintain and repair tissues and to make enzymes and hormones involved in everyday functioning.

That makes protein relevant whether your day includes a workout, a long commute, hours at a desk or household responsibilities. Individual protein needs vary with age, body weight, diet, activity level and health, so there is no single amount that works for everyone.

Everyone needs protein as part of a balanced diet.

The body is constantly renewing and repairing tissues, so protein is not something that becomes useful...