Emerging obesogenic chemicals are classified as food additives, ethoxylated alkylphenols, benzophenones, or chemical mixtures (top). Testing models that have been used so far for these emerging obesogens include cell-based models, such as the preadipocyte cell line 3T3-L1 and bone marrow mesenchymal stem cells (BM-MSCs) and mice. Additional in vivo studies to validate in vitro observations are needed. 3-BHA: 3-tertbutyl-4-hydroxyanisole, BP: benzophenone, BPA: bisphenol A, DOSS: dioctyl sodium sulfosuccinate, TCDD: 2,3,7,8-tetrachlorodibenzo-pdioxine, PCB: polychlorinated biphenyl, PF: perfluorinated chemicals, and UOG: unconventional oil and gas chemicals.