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.

Eating more protein might make your kidneys work worse over time, according to a big study that followed a group of adults.

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.

Eating a lot of protein might make your kidneys get worse faster, according to a big study that followed people over time.