The Sirtfood Diet

Discover the original international diet sensation—used by Adele, UFC champion Conor McGregor, and Pippa Middleton—that will help you lose seven pounds in seven days while experiencing lasting energy and eating all the foods you love.

Over the past few years, fasting has become a popular diet option. Studies show that fasting—whether through moderate calorie restriction every day or the more severe but less frequent intermittent fasting—can help people lose about thirteen to fourteen pounds ...