Lentils are a nutritious food, rich in protein and fiber. They are considered a quality source of protein, especially for vegetarians and vegans. Lentils are also high in iron, making them a great alternative to meat. They are part of the legume family and contain other essential micronutrients such as B vitamins, folate, and potassium. As a whole, lentils are a good choice for those looking to increase their protein and nutrient intake.