They're in the diet section as meal replacement bars, and they're in the sports section as "power" bars ... it will slow digestion and make the energy from the bar last longer.

The best energy bars will help keep you fuelled, whether you're riding, running, hiking or undertaking any other form of exercise. Packed with oats and other slower-release carbohydrate sources as ...

Our research found six kids’ snack bars that are among the lowest in added sugars (5 grams or less per bar), made with whole-grain oats, and/or tend to have fewer or less highly processed ingredients.