Yes, they can help you supplement protein, but other elements that the human body needs to absorb can't be supplemented, and eating these things won't make you feel full, so it's hard to stick to it. If you want to lose weight by dieting, you can eat some coarse grains, such as corn, potatoes and sweet potatoes. You can also eat fruits and vegetables. It would be better if you cooperate with some exercise. I wish you success ~