A 2012 study also showed that people on a low-carb diet burned 300 more calories a day – while resting! According to one of the Harvard professors behind the study this advantage “would equal the number of calories typically burned in an hour of moderate-intensity physical activity”. Imagine that: an entire bonus hour of exercise every day, without actually exercising. A later, even larger and more carefully conducted study confirmed the effect, with different groups of people on low-carb diets burning an average of between 200 and almost 500 extra calories per day.

In general, a good weight-loss goal is to lose 0.5-1.0 percent of your body weight each week. If your weight-loss stalls, it's because your body has learned how to function on fewer daily calories. To reignite fat loss, reduce your current calorie intake by 15-20 percent. (In the example above, the person could consume 2,000 calories a day. To lose weight, they would have to reduce that by 300-400 calories a day.)
This may explain why the fat-burning effects of eating more protein were confirmed in a study published in the American Journal of Physiology. One group was fed a high-protein diet (just over 1 gram per pound of body weight per day) while the second group consumed an amount closer to the lower recommendation of the RDA (recommended dietary allowance). The group eating the higher-protein diet burned the most fat.