Your pet's dry food probably has eight times more weedkiller in it than the most contaminated human food you can find.
March 30, 2026
Original Paper
Exposure of companion animals to glyphosate through commercial pet food
SSRN · 6486581
The Takeaway
While we worry about weed killers in human grains, this study found that almost all commercial pet kibble contains glyphosate. Because pets eat the same processed food every day, their relative exposure is significantly higher than humans, yet the health impact of this massive exposure remains almost entirely unstudied.
From the abstract
Glyphosate residues have been reported in food for humans, but limited data are available for companion animal feed. The present study used ELISA to test for glyphosate residue in commercial cat and dog foods, comprising kibble and wet food. All products included in this study contained glyphosate at levels ranging from 0.011 mg/kg to 1.164 mg/kg. Notably, dry kibble contained significantly higher levels of glyphosate than wet food for both cats and dogs. There was no significant correlation bet