It follows a survey which found over a quarter of people have Glyphosate in their system.
People in the midlands are being encouraged to use natural weed killer, instead of chemicals.
It's after a survey from the University of Galway found more than a quarter of people had Glyphosate in their system.
Researchers believe the detection rate may be due to residues on foods and in water.
John Carey, from Solas Eco Garden Shop in Portarlington, says there are much safer alternatives: