Dr. Oz Explains Intermittent Fasting | TODAY

Intermittent fasting is a type of time-restricted diet in which fasters leave a long gap between their last meal of one day and first of the next, compressing their meals into a shorter period during the day. Typically, fasters try to leave a gap of 16 hours without food and eat during an eight-hour window. Intermittent fasting is not the only type of time-restricted diet. Others like the 5:2 diet (in which dieters eat a normal amount of food for five days before two days of eating only 25% of their usual calorie intake) focus more on the amount of food consumed, rather than the time between meals.
“Time-restricted feeding is used as a weight loss tool, but it’s not my favourite approach,” says Rachel Clarkson, founder of London-based consultancy The DNA Dietitian. “You reduce calories but you don’t learn the essential behaviour change around what you’re putting into your body.”