Other studies comparing other popular diets have come Thin Zone Keto to essentially the same conclusions. For example, a study that compared the Atkins diet, the Ornish diet, Weight Watchers, and The Zone Diet, found them to be essentially the same in their ability to take weight off after one year. (2)
https://www.completefoods.co/diy/recipes/thin-zone-keto-reviews-is-thin-zone-keto-worthy