Which diet component has been suggested to exacerbate acne?

High-glycemic foods have been suggested to exacerbate acne due to their impact on insulin levels and the subsequent hormonal fluctuations that can promote sebaceous gland activity and inflammation in the skin. Foods that are high on the glycemic index cause rapid spikes in blood glucose levels, which in turn can lead to increased insulin secretion. This spike in insulin can stimulate the production of androgens and other hormones that contribute to the overproduction of sebum, the oily substance that can clog pores and lead to acne formation.

Research has indicated that diets high in refined carbohydrates and sugars correlate with increased acne prevalence. These high-glycemic foods include items such as white bread, pastries, sugary snacks, and soft drinks, which can create a cycle that aggravates acne.

Other dietary components mentioned, such as high-fiber foods, high-protein foods, and low-carbohydrate foods, do not have the same established link to increased acne. In contrast, a diet rich in low-glycemic foods, which often includes whole grains, fruits, and vegetables, may help to stabilize insulin levels and potentially lower the risk of acne flare-ups.