A number of factors come into play when deciding whether to adopt a strict diet of organic foods. Research is confirming some significant benefits to eating organics. That can be especially true for pregnant women, young children, the elderly and allergy sufferers, says Rolf Halden, a Fulton Schools professor and director of ASU’s Center for Environmental Health Engineering. But others point to claims that favor nonorganic foods over organics or contend that nonorganics pose no more risk overall than organics.