On October 8-9, 2015 the “2nd International Workshop on Obesity and Environmental Contaminants” will take place in Uppsala, Sweden. Obesogens are a class of endocrine disruptors that change the effects of hormones controlling central biological processes including growth, reproduction, behavior, sexual maturation, and metabolism. The workshop will address how exposure to hormone disrupting contaminants during development can disturb metabolism and adipose tissue development, as well as other endpoints and aspects. Among other topics, experts will discuss the common food contact substance bisphenol A (BPA, CAS 80-05-7). Angel Nadal of the Miguel Hernandez University of Elche, Spain and member of the Food Packaging Forum’s foundation board, will talk about timing of BPA exposure as a predictor of diabesity (obesity + diabetes). Margareta Halin Lejonklou of Uppsala University, Sweden will discuss the effects of developmental low-dose exposure to BPA with special reference to metabolic and bone disturbances. The workshop will also feature a panel discussion on the topic of challenges in health risk assessment with regard to developmental exposure, low-dose effects, non-monotonic dose responses, and late‑onset diseases.