When you eat carby, sugary foods and snacks, you end up with the all-too-familiar sugar spikes and energy crashes. That’s all due to insulin, which skyrockets when you eat carbs. Insulin also tells the body to store calories as fat — and most people trying to lose weight aren’t looking for extra padding in the belly or thighs. Since dietary fat has less impact on insulin levels than carbohydrates or even protein does, you don’t have to worry about sugar crashes, cravings or storing rolls of body fat.
Weight loss, in the context of medicine, health, or physical fitness, refers to a reduction of the total body mass, due to a mean loss of fluid, body fat or adipose tissue or lean mass, namely bone mineral deposits, muscle, tendon, and other connective tissue. Weight loss can either occur unintentionally due to malnourishment or an underlying disease or arise from a conscious effort to improve an actual or perceived overweight or obese state. "Unexplained" weight loss that is not caused by reduction in calorific intake or exercise is called cachexia and may be a symptom of a serious medical condition. Intentional weight loss is commonly referred to as slimming.
Build more muscle: Cardio gets all the glory for melting fat, but it’s actually far more important to focus on building muscle. It’s pretty simple: Lipolysis happens in the mitochondria of the muscles, so the more muscle you have, the more mitochondria, and the more potential to burn. Plus, the more muscle mass you carry, the more your BMR is burning calories at rest. Strength training is also one of the strongest ways to spark production of testosterone and growth hormone, which both help to break down fat, Seedman adds.