The major source of protein for vegetarians includes legumes, such as beans and lentils, which are protein-rich and versatile for various recipes. Other significant sources encompass tofu, tempeh, and dairy products for lacto-vegetarians. Whole grains, like quinoa and farro, provide additional protein as well as fiber. Incorporating a mix of these foods ensures vegetarians receive sufficient protein while also obtaining other essential nutrients. Combining different protein sources can lead to a better amino acid profile, aiding in muscle repair and overall health.