Kids and busy moms love cereal bars, but don't let the word "cereal" mislead you into thinking they're an ideal choice for breakfast. "Think of them as an occasional treat, not a meal replacement," says Elisa Zied, spokesperson for the American Dietetic Association. "They provide quick energy and some protein, but they can also have fat and sugar."
When buying, look for fewer than 10 grams of sugar and 2 grams of saturated fat, no trans fats, and at least 3 grams of fiber per bar. If you or your kids do have a bar once in a while (they are convenient!), eat it with milk and some fruit.