The problem is, it's based on this half-truth: Americans eat too many simple carbs, so if you eat fewer, you'll lose weight, and even more weight if you eat whole foods and less fat, and you'll enhance your health rather than harming it.
gli Americani mangiano troppi carboidrati semplici, quindi se mangiate meno carboidrati semplici perderete peso. Perderete ancora più peso se passerete ai cibi integrali e ridurrete i grassi, e rafforzerete la vostra salute, invece di rovinarla.