Does fasting decrease muscle mass?

In general, when someone is losing weight using traditional calorie restriction, they lose 25% of weight as muscle and the remaining 75% as fat. Recent findings show that this ratio is altered with intermittent fasting. During an intermittent fasting regime, most subjects only lose 10% of weight as muscle and 90% as fat. Thus, this diet may help to retain muscle mass, which can help to keep your metabolism high.