21 'Healthy' Snacks You Should Avoid at All Costs, Says Science 21 'Healthy' Snacks You Should Avoid at All Costs, Says Science You've heard of villains disguised as heroes, and leggings disguised as pants. But junk food disguised as healthy snacks? Sigh. It's more common than you think. Between sugar-free, gluten-free, low-carb, low-fat, organic, all-natural, and more, there's an overwhelming amount of terms that get slapped onto food labels. The confusion around reading these labels makes it easy to mistake something for "healthy," explains registered dietician Bonnie Taub-Dix, RDN, creator of BetterThanDieting and author of Snacking for weight loss is something we highly encourage, so it's extra important you