RELATED: 6 Foods That Really Do Burn Fat 10. There’s no such thing as too much protein. You may have heard that eating lots of protein can cause all sorts of health problems, including kidney stones and gallstones, but this is a moot point for most people. Why? Because there’s no research showing any relationship between eating a lot of protein and developing kidney problems. In fact, a study published in the Journal of Strength and Conditioning Research tested eating up to 400 grams of protein per day without any negative consequences.