New tests reveal popular cereals and snack foods could have potentially harmful levels of the same chemical found in weed killer.   

The chemical is called glyphosate, and some reports say it may cause cancer. Of the 21 General Mills products examined by the Environmental Working Group, the highest levels of glyphosate were found in Honey Nut Cheerios Medley Crunch, which had more than five times what the advocacy group believes is a safe level. Original Cheerios had more than four-and-a-half times what the group considers safe.

The products are considered safe under EPA standards. “CBS This Morning” reached out to the EPA and FDA, but did not hear back. 

General Mills said in a statement that “these are very strict rules that we follow, as do farmers who grow crops. We continue to work closely with farmers, our suppliers and conservation organizations to minimize the use of pesticides on the ingredients we use in our foods.”