Cottonseed oil is a common, edible oil found in a wide range of foods. When acting as a pesticide, it is mainly used as an adjuvant or carrier with insecticides. The mode of action for cottonseed oil is considered non-toxic to insects and mites, acting mainly through suffocation. As to human health concerns, some people are allergic. Carcinogenicity studies are equivocal; cottonseed oil may be a co-carcinogen.