Plant protein is essential. Eating more natural, unprocessed plant foods will do wonders for your health. One of the biggest concerns about eating less meat and consuming more plant-based foods is the fact that you wonít be consuming enough protein. This can become a serious issue, since your body needs protein to form new cells and renew its existing tissues. Without enough protein your body canít sustain its muscle, hair, skin, nail and organ tissues. This includes vital organs like the brain, liver, lungs and heart.