U.S. News and World Report released its annual list of the world’s most popular diets this week, and a quick perusal of the results may surprise consumers. To devise the rankings for its Best Diets Overall list for 2014, U.S. News evaluated and ranked 32 diets based on input from a panel of health experts — only those diets that proved to be easy to follow, nutritious, safe, and effective for weight loss and against diabetes and heart disease earned top ratings. Different diet regimens have taken the health world by storm this year, as some fitness experts swore by the Paleo lifestyle while others went gluten- and dairy-free, but the publication’s report shows that not all these habits are approved by health experts. In fact, some of the more low-profile diets are believed to be the most effective ones. One diet people may be surprised to see missing from the top of U.S. News’ list is the Paleo diet. Thanks to the rising popularity of exercise program Crossfit, more exercise and health junkies have turned to this hunter-gatherer-like lifestyle. However, U.S. News reports that not all health experts are onboard the Paleo train. U.S. News certainly didn’t condemn the Paleo diet. Instead, it noted health experts’ beliefs that the regimen is too restrictive and difficult to maintain long term. The publication also cited a lack of research proving its cardiovascular health and weight loss benefits in addition to the fact that it limits many essential nutrients. But the Paleo diet is on the other end of U.S. News’ list. Instead, we’re highlighting the seven top diets on the Best Diets Overall 2014 list. Whether you’re in the market for a new diet thanks to your New Year’s resolution or you’re simply interested in learning how the regimens compare according to health experts, check click through and learn which diets won top marks.