Extra proteins refer to the additional sources of protein added to a diet, often to meet higher nutritional needs or to support specific goals like muscle building, weight management, or overall health. These proteins can come from various sources, including lean meats, fish, eggs, dairy products, legumes, and plant-based options like tofu or protein powders. Incorporating extra proteins into meals can help with muscle repair, support metabolic functions, and promote satiety, making them an essential component for those with active lifestyles or specific dietary requirements.