Obesity due to excessive fat accumulation, affects health and quality of life and increases the risk of diseases such as type 2 diabetes and cardiovascular conditions. Traditional causes, such as calorie excess and sedentary behavior, do not fully explain the obesity epidemic, leading to the hypothesis that endocrine-disrupting chemicals or obesogens contribute to obesity. The obesogenic mechanisms of representative obesogenic substances, such as bisphenols, have been discussed, mainly focusing on their interactions with estrogen receptors. Based on several studies showing that obesogens induce obesity by mimicking glucocorticoids, this review focused on the role of the glucocorticoid receptor pathway. In addition, the anti-obesogenic bioactive substances that have been studied to this date along with their inhibitory mechanisms were discussed.