Most Cereal Bars Aren’t Healthy
Although cereal bars are gradually becoming healthier, some are still similar to candy bars. According to Diabetes UK, cereal bars contain healthy complex carbs and simple carbs. Simple carbohydrates include fructose and glucose, which transform into sugar in your body. You don’t want a sugar-filled cereal bar to spike your blood glucose.

Natasha Breen/REDA&CO/Universal Images Group via Getty Images
Some of the more popular cereal bar brands–Nature Valley, Cliff, Quaker Oats–have too much sugar and fat for diabetics. A spokesperson for the Academy of Nutrition and Dietetics, Torey Armul, recommends eating nuts and fruit instead of a cereal bar.