1. Sugar and Refined Carbohydrates
Sugary and high glycemic index foods (white bread, desserts, processed foods) cause blood sugar to rise rapidly. This increases the body's insulin production, which can increase the skin's oil production and pave the way for acne. Avoiding sugar and processed foods can help prevent acne.

2. Milk and Dairy Products
Some studies show that milk and dairy products (especially full-fat milk and cheese) can trigger acne. The hormones in milk can lead to excess insulin production in the body, which can cause the sebaceous glands to produce more oil. Limiting milk consumption can reduce acne formation.

3. Fast Food and Fatty Foods
Fast food, fried foods, and excessively fatty foods can cause inflammation in the body, causing acne to occur more frequently. These foods increase oil production in the skin, causing pores to become clogged. In addition, such foods disrupt blood circulation and can negatively affect skin health.

4. Chocolate
Chocolate, especially sugary and milky varieties, can trigger acne. The sugar and cocoa in chocolate can increase insulin levels in the body, which can stimulate the oil glands in the skin and lead to acne. Dark chocolate is less likely to cause acne because it usually contains less sugar.

5. Processed Meats
Sausages, sausages, salami, and other processed meat products contain high amounts of saturated fat and sodium. This can increase inflammation in the body and lead to acne. These types of foods can also weaken the body's ability to eliminate toxins and negatively affect the health of the skin.

6. Alcohol
Alcohol can dehydrate the body and increase acne by disrupting the skin's moisture balance. Alcohol can also cause inflammation in the skin by causing toxins to accumulate in the body.

7. White Flour and Bakery Products
White flour foods contain refined carbohydrates and can rapidly increase blood sugar. This causes insulin levels to increase and triggers oil production. Bread, pastries and other baked goods can have this effect.

What to Do?
A balanced and healthy diet is important for acne-prone skin. Avoiding sugary, processed and fatty foods can reduce acne formation. In addition, drinking plenty of water, eating fruits and vegetables, and consuming foods rich in omega-3 fatty acids and antioxidants support skin health.