For overweight older people with normal kidney function, eating a low-calorie diet with more protein for six months doesn't harm their kidneys, compared to eating less protein.

Older adults who are obese can lose a good amount of weight by eating fewer calories with different protein amounts, and it doesn't hurt their kidneys.

Eating a lot of protein every day — even more than 200 grams — won’t hurt your kidneys if they’re already healthy.

If you're overweight or obese and on a high-protein diet to lose weight, your kidneys stay just as healthy — or may even get a little better — even if you already have mild kidney issues, high blood pressure, or type 2 diabetes.

If you're overweight and your kidneys are working too hard at the start, going on a high-protein diet to lose weight might make your kidney function look more normal—not worse—by bringing down their overactivity.

If you're an adult who's overweight and has mild kidney disease, losing weight on a high-protein diet might actually help your kidneys a little over 8 months — even if you eat up to 1 gram of protein per pound of body weight each day.