Ubiquitous chemical bisphenol A is linked to heart disease and diabetes, says new research released Tuesday in the Journal of the American Medical Association. The Food and Drug Administration recently declared that BPA is safe; the new study’s release was timed to coincide with an independent panel’s review of that conclusion. Researchers studied urine samples from 1,455 American adults; BPA was detectable in 90 percent of the samples, though all were within currently recommended exposure levels. However, participants with the highest levels of BPA in their urine had nearly three times the chance of having heart disease than those with lowest exposure, and were 2.4 times more likely to have diabetes. Other studies have linked the chemical to reproductive and hormonal troubles. The new study is the largest to look at the effects of BPA in humans; the FDA relied heavily on industry-funded studies of lab animals. While everyone agrees that more research is needed, many consumers are already trying to avoid BPA by eschewing some plastic bottles, baby toys, and canned foods.