Yuri Elkaim Yuri Elkaim is a nutrition, fitness, and fat loss expert and the NYT bestselling author of The All-Day Energy Diet and The All-Day Fat Burning Diet. A former professional soccer player turned health crusader, he's most famous for helping people who've tried everything to lose weight little success finally achieve breakthrough results. Yuri is on a mission to empower 10 million people to greater health by 2018 by making fit and healthy simple again. For more, visit YuriElkaim.com