Protein/ˈprəʊtiːn/ Definition 1 of 3Pro Tip 1/3Dietary Importance Emphasizes protein's role in nutrition and meal planning. Many gym-goers drink a protein shake after workouts for muscle repair. Pro Tip 2/3Plant-Based Options Mention plant sources as alternatives to animal-derived protein. Quinoa and lentils are excellent plant-based protein options. Pro Tip 3/3Common Food Pairings Shows typical combinations of protein with other foods in meals. A balanced meal might include chicken (protein) with rice and vegetables.