Past studies that said obese people burn fewer calories after eating might have been misleading because they compared obese people with unusually active lean people or included diabetic patients who burn more calories at rest.

When people lose weight, their bodies sometimes slow down more than expected, burning fewer calories at rest — and this might be why some folks struggle more than others to keep the weight off.

After losing weight, the body slows down calorie burning to save energy — but eating more protein stops this slowdown, so the body burns calories at the expected rate again.

Eating a fatty meal doesn’t make your body burn many extra calories, and your brown fat doesn’t seem to play any role in that process.

If you're stuck at the same weight even though you're eating right and working out, moving more throughout the day—like fidgeting, standing, or walking—and checking for hidden health issues might help you start losing weight again.

Obese and lean people burn about the same number of extra calories after eating the same amount of food, no matter if it’s protein, carbs, or fat.