The reduction of body weight as the result of diet change or burning more calories through physical activity – ideally both. Weight loss is usually recommended for overweight or obese people with a waist circumference of more than 40 inches for men and 35 inches for women), or two or more risk factors (such as type 2 diabetes or heart disease). Healthy weight loss/management programs usually consist of a reduced-calorie, nutritionally-balanced eating plan, regular physical activity and a behavior change plan to help participants stay on track with their goals.