In September, California became the first state in the nation to ban six artificial food dyes from meals served in public schools. The move followed a 2021 report from the state's Office of Environmental Health Hazard Assessment (OEHHA) that concluded the body of evidence supported a relationship between food dye exposure and adverse behavioral outcomes in some kids. Physicians and researchers said understanding the relationship between food dyes and the potential for disease is an important one, noting that additional research may be warranted.