Here are 30 of the most incredible weight loss transformations of all time

Too much or too little
Balance is key. If you want to lose fat, you need to be in a caloric deficit. However, you still need to fuel your body optimally or it will shut down, and progress will halt. It's always better to burn the fat than to starve it. Essentially, you want to burn the fat and feed the muscle. I've fixed clients' diets countless times simply by telling them to eat more. They weren't losing weight because they were only consuming 500-1,000 calories. This is close to starvation and not nearly enough to fuel an exercising body. When this happens, the body shuts down and does everything it can to conserve energy.