Detailed answer

A diet that is high in refined carbohydrates and sugars can increase insulin levels in the body, leading to excess sebum production. Excess sebum can clog the pores and contribute to the formation of blackheads. Additionally, consuming foods with a high glycemic index may increase inflammation in the body, which can worsen acne and blackhead formation. On the other hand, a diet rich in fruits, vegetables, and whole grains provides essential nutrients and antioxidants that can help maintain healthy skin and reduce the risk of blackheads.