According to a study published on Tuesday by a French NGO, 100 percent of the non-organic breakfast cereals they analyzed contained traces and residues of pesticides.

French NGO Générations Futures evaluated samples of 15 non-organic and five organic kinds of cereal produced by mainstream brands such as Kellogg's, Nestlé and Jordans, or large industrial food distributors like Auchan, Leclerc or Carrefour.

The results found in all non-organic breakfast cereals traces of pesticides, and none in their organic counterparts.

According to the NGO, the amounts of pesticide found in the non-organic breakfast cereals do not pose a health risk for human consumption.

However, the NGO did warn about the risk of so-called cocktails, that is, combinations of various chemicals capable of causing serious health risks.

"Among the 15 non-organic cereal samples analyzed, 141 different pesticide residues were found," said the report.

Générations Futures explained that 81 of the of 141 residues _ close to 60 percent _ "were suspected of being endocrine system disruptors."

These disruptors are chemical substances capable of altering the human hormone system and cause serious health issues such as "loss of fertility, diabetes, immune system disruption and serious respiratory problems."

Purchased in supermarkets in the Hauts-de-France region (northern France), the non-organic cereals showed "an average of 9.4 residues" of pesticides per sample, said the French NGO.

Générations Futures is a non-governmental organization devoted to studying pesticides and the risks for they could pose to humans and the environment.