Taking extra protein shakes after losing weight doesn’t help you keep the weight off any better than eating the normal amount of protein in your daily diet.

If you're overweight, eating a lot more protein — especially from whey — for a month won't help your body use insulin better unless you're also losing weight.

When obese women eat more protein while losing weight, they tend to gain more muscle and lose more fat than when they just eat fewer calories overall.

After metabolic bariatric surgery, adults who follow a structured protein supplement plan that starts at 20 grams per day and increases to 60 grams over 12 weeks, then transitions to dietary sources, consume more protein daily than those who follow standard dietary advice without supplementation.

If young adults who aren't used to working out eat a bit more protein—especially from whey or soy—and lift weights 3 times a week for 3 months, they’ll likely gain more muscle and get stronger, even if they weren’t eating enough protein to start with.

If you're overweight or obese and eat the same number of calories, boosting protein or saturated fat from dairy for a month doesn't seem to hurt your blood sugar control or cholesterol levels.