Background and objective: The world average yield of wheat, rice, and maize has doubled 20 folds since 1964 due to the increase in pesticide use. Glyphosate, a broad spectrum herbicide, is globally used in crop production and is residual in soil and water. Several research findings on glyphosate residues in different food groups and human exposure remain controversial as to whether or not it increases the risk of cancer and other health implications. In Lebanon, there is no current data to estimate glyphosate concentration and exposure in different food groups. This study quantified glyphosate ...