With so much emphasis on getting more protein, it’s fair to wonder if it’s possible to eat too much protein. It Can Put Extra Strain on Your KidneysFor people with healthy kidneys, higher protein intake is generally safe. "However, when animal protein dominates the plate, we often see low intakes of fiber, vitamin C, folate, magnesium, and plant-based antioxidants," explained Moore. Diets high in animal protein have been associated with a higher risk of end-stage kidney disease and higher all-cause and cardiovascular mortality. Protein Bars and Powders Can BackfireProtein supplements can help people who struggle to meet their protein needs solely through food, especially those with higher protein requirements.