The answer? A yummy, fiber-rich smoothie. Simply chuck in all of the elements—greens included!—and you’ve got one gut-healthy sip. Gastroenterologist Will Bulsiewicz, M.D., MSCI, has mastered his personal creamy confection. “There is a core construction that I change up,” he shared on the mindbodygreen podcast. The elements could also be easy, however they pack in fairly a punch. Discover his go-to shake beneath.