The transcription factor GLI-similar 3 (GLIS3) rs7034200C/A and adrenergic receptor beta 3 (ADRB3) rs4994T/C (Trp64Arg) polymorphisms are closely related to glucolipid metabolism, insulin resistance, obesity, and increased risk of type 2 diabetes. Here, ADRB3 is linked to obesity due to melanocortin 4 receptor deficiency.