Studies in rats have shown that intermittent fasting extends lifespan in a similar way as continuous calorie restriction (42, 43). (healthline.com)
There is also one study showing that intermittent fasting causes less muscle loss than the more standard method of continuous calorie restriction (16). (healthline.com)
There is a study, though, that shows intermittent energy restriction for two consecutive days weekly may be as effective as continuous calorie restriction. (dietselfhelp.com)