Ha! That's a really stupid pun, but you know what is also stupid? Some cereals look all healthy and chock full of fiber but they're no better than a bowl of Cap'N Crunch (Cracklin' Oat Bran, we're looking at you). The good rule of thumb is that no more than 30% of the cereal's total calories should come from sugar, and for you mathematicians, there's an actual formula here. However, we're just happy to see Strawberry Frosted Mini-Wheats getting the green light from a nutritionist.