This 'healthy choice' actually delivers as much sugar as a candy bar," says nutritionist Monica Reinagel, LN, CNS. "Yogurt is a good source of calcium, protein, and beneficial probiotics. And fruit is a good source of fiber and antioxidants. But 'fruited yogurt' cancels out the benefits by containing up to six teaspoons of added sugar per serving." Many yogurts (especially low-fat ones that look extra healthy) pack artificial sweeteners that can kick your taste buds into overdrive and actually raise your tolerance to any and all things sweet, adds Glassman.