1. Dairy products: Dairy foods like milk, cheese, and yogurt can lead to increased acne in some individuals due to their hormone content.
2. Processed foods: High-sugar and high-fat processed foods can contribute to inflammation and acne breakouts.
3. Sugary snacks: Consuming excessive amounts of sugary snacks and drinks can spike insulin levels, leading to skin issues.
4. Fast food: Greasy fast food items can exacerbate acne and other skin problems.
5. High-glycemic foods: Foods with a high glycemic index, such as white bread and sugary cereals, can cause skin inflammation.
6. Spicy foods: Spicy dishes can trigger acne flare-ups in some individuals due to their potential to increase skin redness.
7. Shellfish: Some studies suggest that shellfish may be linked to acne due to their high iodine content.
8. Excessive caffeine: Too much caffeine from coffee and energy drinks can dehydrate the skin and lead to breakouts.
9. Nuts: While not the case for everyone, certain nuts like peanuts can worsen acne for some individuals.
10. High-sodium foods: Consuming foods high in salt can lead to water retention and skin inflammation.

It's important to note that individual responses to these foods can vary, and consulting a healthcare professional for personalized advice is always recommended.