(CNN) - Pay attention, parents. Your kid's morning bowl of cereal may have more sugar in it than cookies.
According to a new report by the Environmental Working Group, only a quarter of children's cereals meet government guidelines for limits on sugar.
The report says some of the cereals even have more sugar than three chocolate chip cookies or one Twinkie.
But some cereal makers take issue with the report.
Kellogg's says it has cut sugar in its cereal by 16 percent. And it says its cereals only make up a small part of added sugar in the U.S. diet.