Among foods with the highest protein content per 100g, lean meats such as chicken breast and turkey rank at the top, along with seafood options like tuna and salmon. For plant-based sources, seitan (wheat gluten) leads, followed closely by lentils, chickpeas, and various nuts and seeds. ProMeals utilizes these high-protein foods in our meal prep delivery service to ensure that our customers receive nutrient-dense meals designed to fuel their bodies effectively.