Leon Weathersby as a Professional Chiropractor Explains, What is intermittent fasting? Does it have health benefits? Intermittent fasting means you don't eat anything for a while each day or week. Leon Weathersby Chiropractor shares popular methods of intermittent fasting: 1. Alternate day fasting. Eat a normal diet one day and either fast completely or eat a small meal (less than 500 calories) the next day. 2. 5:2 Fasting. Eat a normal diet five days a week and fast two days a week. 3. Daily time-restricted fasting. Eat normally but only within eight-hour intervals each day. For example, skip breakfast but eat lunch around noon and dinner by 8 p.m.