You're shopping at the grocery store and faced with the option of buying regular or reduced-fat peanut butter. Seems like reaching for the latter variety would be doing your health (and your waistline) a favor, right? Not exactly.
The low-fat craze started in the '90s after a few observational studies linked fat intake to heart disease, Kerry Clifford, MS, RD, LDN, a registered dietitian for Fresh Thyme Farmers Markets, told Fox News. That's all it took for Americans to consider fat evil, and low-fat, fat-free and reduced-fat versions of nearly ever food imaginable followed suit.
