For anyone with a sweet tooth, it can feel like food companies have developed guilt-free candy. But that’s where things get disorienting. Some of these products are seemingly nutritionally benign, whereas others are nothing more than junk food trying to cash in on protein’s good reputation. The new protein-spiked Pop-Tarts contain the same amount of sugar as the original Pop-Tarts—30 grams. Or consider Gatorade’s protein bar, which has roughly as much sugar as a full-size Snickers. At this point, the line between protein bar and candy bar has never been blurrier.