The Whole30 diet is a diet that focuses on cutting out all harmful foods and substances, rebuilding your body and identifying foods that don't go along with it as well and much more, so why is it ranked so low on U.S. News & World Report's Best Diets list?
The Whole30 diet was created by Melissa and Dallas Hartwig, who described the diet on their website as a “short-term nutritional reset, designed to help you put an end to unhealthy cravings and habits, restore a healthy metabolism, heal your digestive tract and balance your immune system.” The diet itself lasts for 30 days and is an incredibly restrictive diet focused on cutting out any sources of sugar, artificial sweeteners, alcohol, and dairy products.
While many diets have a cheat day in between to indulge in something other than the planned diet, the Whole30 does not and even "resets" itself should the slightest rule be broken, bringing participants back to day one of the diet. According to Melissa and Dallas, this is to allow the body to completely heal itself from inflammatory foods.
Does It Work Though?
Speaking about the diet, Kathie Beals, an associate professor, clinical, in the division of nutrition at the University of Utah said: "I ranked it low because it eliminates several entire food groups (grains, legumes, dairy) with no scientific basis for the elimination," and that "The 'justification' ... s not supported by scientific research. It also makes unsubstantiated claims regarding links between certain foods and diseases and or treatment for diseases," as reported by U.S News.
She also thinks that the reason behind the popularity of the diet is how direct it's guidelines are. She goes on to say "People seem to need/want step-by-step instructions when it comes to 'dieting.' Unfortunately while they like 'rules' at first, they tire of them quickly ... which is why these diets are successful over the short term but fail when it comes to long-term weight-loss maintenance."