Agility

  There's no denying that the keto diet still reigns as one of the most popular—and highly researched—diets out there right now. In fact, keto was one of the top 10 diets listed as part of Google’s 2019 Year in Search report. And per Reddit's 2019 Year in Review, keto was the most-discussed diet trend of last year, plus the r/keto sub-Reddit was the number-two overall fitness/wellness community in 2019 and saw a 65 percent increase in subscribers from last year. Wowza. But there are two clear sides to the keto debate: There are folks who are alllll for the high-fat lifestyle and those who, well, absolutely aren't. Jenna Jameson, for example, is clearly a proponent—as is Mama June, Halle Berry, and Savannah Guthrie. Jenna, for example, credits the keto diet with her more than 80-pound postpartum weight loss, while Halle swears that it helps her maintain her health (she has type 2 diabetes). Then there are the people who don't love the diet: Tamra Judge, who was on the ke...