On the other hand, consumption of dairy milk products has been associated with a higher frequency and severity of acne, as its components enhance the effects of insulin and IGF-1 on the production of androgen hormones and sebum and stimulate the formation of comedones (Bhate and Williams, 2014; Bronsnick et al., 2014; Albalwa et al., 2023). This evidence concerns the gene INS and acne.