Protein is good, right? Damn right it is. But not if it’s double-decked with ab-killers fat and sugar. Your protein-bar approach: Save them for when you’re in a jam, like when you’re traveling or out on a long hike, and in those instances eat half the serving size at a time. Rule No. 2: shop smart. Pick a bar with reduced sugar, or opt for a ready-to-drink (RTD) alternative. These products typically contain half the fat and sugar, and 100 fewer calories, compared with bars.