>500kcals less per day equals 500grams of weight loss per week. It is enough, else you lose muscle. Translating this into yearly terms: 500 grams of weight los

>500kcals less per day equals 500grams of weight loss per week. It is enough, else you lose muscle. Translating this into yearly terms: 500 grams of weight loss per week is 21 kilograms, or about 46 pounds of weight loss per year (52 weeks).