"Troubling levels" of a cancer-causing ingredient have been found in many popular children's cereals and other foods, according to the Environmental Working Group.

A new study found "troubling levels" of glyphosate, the cancer-causing ingredient in the herbicide Roundup, in all 21 oat-based cereal and snack products sampled in a new round of testing commissioned by the Environmental Working Group.

All but four products contained levels of glyphosate higher than what EWG scientists consider protective for children’s health with a sufficient margin of safety, officials say.

The highest levels of glyphosate were found in Honey Nut Cheerios Medley Crunch and Cheerios, according to the Environmental Working Group.

Roundup has been the focus of several cancer-related lawsuits. Since August 2018, three California juries have awarded more than $2.2 billion in three separate verdicts against Bayer-Monsanto over claims the company knew Roundup caused cancer.

Glyphosate was found in the following General Mills products, according to the Environmental Working Group.

  • Honey Nut Cheerios
  • Cheerios Toasted Whole Grain Oat Cereal
  • Cheerios Toasted Whole Grain Oat Cereal
  • Chocolate Peanut Butter Cheerios
  • Cheerios Oat Crunch Cinnamon
  • Honey Nut Cheerios Medley Crunch
  • Multi Grain Cheerios
  • Nature Valley Baked Oat Bites
  • Nature Valley Granola Peanut Butter Creamy & Crunchy
  • Nature Valley Granola Protein Oats n Dark Chocolate
  • Nature Valley Fruit & Nut Chewy Trail Mix Granola Bars, Dark Chocolate & Nut
  • Nature Valley Fruit & Nut Chewy Trail Mix Granola Bars, Dark Chocolate Cherry
  • Nature Valley Sweet & Salty Nut granola bars, Cashew
  • Nature Valley Crunchy granola bars, Oats and Honey
  • Nature Valley Crunchy granola bars, Peanut Butter
  • Nature Valley Crunchy granola bars, Maple Brown Sugar
  • Nature Valley Soft-Baked Oatmeal Squares, Blueberry
  • Nature Valley Soft-Baked Oatmeal Squares, Cinnamon Brown Sugar

A General Mills spokesman told Hudson Valley Post the Environmental Working Group made similar allegations in August and October of 2018.

"General Mills top priority is food safety and has been for over 150 years. Most crops grown in fields use some form of pesticides and trace amounts are found in the majority of food we all eat. Experts at the FDA and EPA determine the safe levels for food products. 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," General Mills said in a statement to Hudson Valley Post.

The spokesperson also pointed out media coverage by CNN, Slate, Chicago Tribune and NJ.Com that stated parents shouldn't worry about the report.

The Environmental Working Group believes the companies must starting using oats from farmers who don't use the glyphosate on their crops to decrease the levels.