Can too much protein be bad for the body?

Yes: Consuming more than your body needs (especially on a low carbohydrate diet) can harm the body in many ways: 1) Your body can develop a buildup of toxic ketones, which can harm the kidneys. 2) You can become dehydrated. 3) Fatigue, headaches, and dizziness may result. 4) It may stress the heart. 5) There may be a paradoxical decline in bone calcium and muscle mass. 6) Malnutrition may result.

Protein-Mayo clinic: 'Some high-protein diets restrict carbohydrate intake so much that they can result in nutritional deficiencies or insufficient fiber, which can cause health problems such as constipation and diverticulitis. . A high-protein diet may worsen kidney function in people with kidney disease because your body may have trouble eliminating all the waste products of protein metabolism.' -Mayo Clinic