2. Popular brands use an ingredient that’s making you dumb.
Scientists recently discovered that ingesting high-fructose corn syrup for just 6 weeks made lab animals less smart. While you’d expect this processed, brain-draining sweetener in candy, you might be surprised to find it in many salad dressings sold under many popular and higher-end brands, like Girard's Blue Cheese.
Try this instead: The organic label ensures there’s no high-fructose corn syrup in your dressing, so go that route whenever possible. Beware of dressing with too much regular sugar, too. Bradley says many fruit-based dressings, like raspberry vinaigrette, sometimes harbor a deceiving amount of sweeteners.