<unk> , also known as<unk>  energy restriction, is any of various meal timing schedules that cycle between voluntary<unk>  (or reduced calorie intake) and non-fasting over a given period. Methods of<unk>  include alternate-day<unk> , periodic<unk> , and daily time-restricted feeding.<unk>  may have similar effects to a calorie-restriction diet, and has been studied in the 21st century as a practice to possibly reduce the risk of diet-related diseases, such as metabolic syndrome. The American Heart Association states that<unk>  may produce weight loss, reduce insulin resistance, and lower the risk of cardiometabolic diseases, although its long-term sustainability is unknown. A 2019 review concluded that<unk>  may help with obesity, insulin resistance, dyslipidemia, hypertension, and inflammation. A 2022 review indicated that<unk>  is generally safe.
Intermittent fasting
Calorie restriction
Very-low-calorie diet
Low-FODMAP diet
Alkaline diet
Specific carbohydrate diet
Low-carbohydrate diet
Ketogenic diet