Weed Killer Ingredient Found in Cheerios, Quaker Oats and Other Breakfast Cereals

Eating your Wheaties may not be as healthy as you once thought. A recent study conducted by The Environmental Working Group (EWG) found potentially unsafe amounts of the herbicide glyphosate in a number of popular breakfast cereals and snacks including Cheerios and Quaker Oats.

The study tested 29 different grain-based products, with all but five testing positive for trace amounts of glyphosate. Glyphosate is the main ingredient in weed killers such as Roundup and has been labeled a probable carcinogen by the World Health Organization.

The report comes one week after chemical giant Monsanto was ordered by a court to pay $289 million to a terminal cancer patient whose illness, the jury ruled, could be attributed to using its Roundup weed killer. According to USA Today, hundreds of similar cases have been filed against Monsanto and are currently working their way through the court system.

Which Foods Tested With Unsafe Levels of Glyphosate?

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A new study finds unsafe levels of weed killer in multiple grain-based products such as Quaker Oats and Cheerios. The study tested 29 different grain-based products, with all but five testing positive for glyphosate. Getty Images

The full list of grain products tested by the EWG can be found here. According to the study, nearly three-fourths of the samples tested had levels of glyphosate above the 160 parts per billion (ppb) benchmark considered safe by the EWG. It is important to note, however, that the EWG's threshold for safe levels of glyphosate in foods is significantly lower than the standard set by the EPA.

We've broken the results of the EWG's study into groups of foods with and without Glyphosate detected.

Products With Potentially Unsafe Levels of Glyphosate (Above 160ppb)

  • Back to Nature Classic Granola
  • Quaker Simply Granola Oats (Honey, Raisin and Almonds)
  • Nature Valley Granola Protein (Oats 'n Honey)
  • Giant Instant Oatmeal Original Flavor
  • Quaker Dinosaur Eggs Instant Oatmeal
  • Great Value Original Instant Oatmeal
  • Umpqua Oats - Maple Pecan Flavored
  • Market Pantry Instant Oatmeal
  • Cheerios Toasted Whole Grain Oat Cereal
  • Lucky Charms (without marshmallows)
  • Barbara's Multigrain Spoonfuls Cereal
  • Kellogg's Cracklin' Oat Bran Cereal
  • Nature Valley Crunchy Granola Bars (Oats 'n Honey)
  • Quaker Steel Cut Oats
  • Quaker Old Fashioned Oats
  • Bob's Red Mill Steel Cut Oats

Products With Safe Levels of Glyphosate (Below 160ppb)

  • Back to Nature Banana Walnut Granola Clusters
  • KIND Vanilla, Blueberry Clusters with Flax Seeds
  • Kellogg's Nutrigrain Soft Baked Breakfast Bars (Strawberry)
  • Nature's Path Organic Old Fashioned Organic Oats
  • Whole Foods Bulk Bin Conventional Rolled Oats
  • Bob's Red Mill Organic Old Fashioned Rolled Oats

Products With No Glyphosate Detected

  • Nature's Path Organic Honey Almond Granola
  • Simple Truth Organic Instant Oatmeal (Original)
  • Kashi Heart to Heart Organic Honey Toasted Cereal
  • Cascadian Farm Organic Harvest Berry Granola bar
  • 365 Organic Old-Fashioned Rolled Oats