What Should You Avoid Eating While Undergoing Acne Treatment? A List of Foods to Avoid

Hello, for acne treatment to achieve optimal results, diet plays an extremely important role, accounting for nearly 20–30% of the overall outcome. Many people use the correct medications and follow proper skincare routines yet still experience recurring acne simply because their diet is not appropriate. Based on your question, “What should you avoid eating while undergoing acne treatment?“, the doctor will provide a clear medical explanation and suggest appropriate dietary habits and meal plans for you to follow.

What Should You Avoid Eating While Undergoing Acne Treatment?

While undergoing acne treatment, you should minimize foods that rapidly increase blood sugar levels, stimulate sebaceous gland activity, or promote inflammation.

The reason is that these foods can increase IGF-1 hormone levels, stimulating the sebaceous glands to produce more oil, leading to clogged pores and a higher likelihood of inflammatory acne flare-ups.

Food groups that should be limited include:

• Foods high in sugar: candies, milk tea, soft drinks, cakes, and pastries. Sugar increases insulin activity, stimulating oil production and worsening acne breakouts.
• Cow’s milk and dairy products: fresh milk, cheese, and cream products. Some studies suggest that dairy consumption increases IGF-1 levels, which may prolong inflammatory acne.
• Fried and greasy foods: fried chicken, French fries, and fast food.
• Spicy foods: chili peppers, black pepper, etc., which can cause vasodilation and make acne lesions appear more swollen.
• Foods that may trigger inflammation or allergic reactions: seafood, glutinous rice products, and beef (depending on individual sensitivity).
• Stimulant beverages: strong coffee, alcoholic beverages, and energy drinks, which may disrupt hormonal balance and impair detoxification processes.

These dietary restrictions do not have to be followed with absolute rigidity, but the more you can limit these foods, the faster your acne treatment process is likely to progress.

Foods You Should Include After Acne Treatment

While the skin is recovering, the body requires anti-inflammatory nutrients, fiber, and vitamins to support tissue regeneration. Beneficial food groups include:

• Green vegetables and low-sugar fruits: spinach, kale, broccoli, apples, grapefruit, and oranges. These are rich in vitamins A, C, and E, which support skin healing.
• Omega-3-rich foods: salmon, mackerel, chia seeds, and walnuts. These naturally reduce inflammation and support acne treatment.
• Zinc-rich foods: oysters, pumpkin seeds, chicken, and mung beans. Zinc helps reduce excess oil production and accelerates skin healing.
• Healthy protein sources: chicken breast, white fish, and tofu, which support skin regeneration after treatment.
• Water and coconut water: help maintain detoxification processes, hydrate the skin, and reduce the risk of developing new acne lesions.

In general, the cleaner your diet, the easier it is for your skin to recover and the lower the risk of acne recurrence.

Suggested Meal Plan for Individuals Undergoing Acne Treatment

This is a meal plan that doctors commonly recommend for acne patients at Gangwhoo Cosmetic Hospital to help maintain stable blood sugar levels and minimize excess oil production:

Breakfast:

• Oatmeal + unsweetened plant-based milk + low-sugar fruits
  or
• Grilled chicken breast + vegetable salad

Lunch:

• Steamed salmon or lightly braised basa fish
• Boiled vegetables: mustard greens, amaranth, broccoli
• 1 bowl of brown rice

Afternoon Snack:

• Unsweetened yogurt
  or
• Unsalted walnuts or cashew nuts

Dinner:

• Soft tofu with tomato sauce
• Steamed vegetables or vegetable soup
• Additional low-sugar fruit if still hungry

Hydration: Drink 1.5–2 liters of water per day and completely avoid sugary beverages.

This meal plan not only supports acne treatment but also promotes overall wellness, better digestion, and a lower risk of inflammation.

Habits That Help Clear Acne More Quickly

Diet is only one part of the equation. The doctor emphasizes that to maintain consistently clear skin, you should also follow these supportive habits:

• Wash your face properly twice daily, avoiding excessive cleansing that can dry out the skin.
• Do not squeeze or pick at acne lesions, especially inflammatory acne, cystic acne, or lesions without a visible head.
• Keep pillowcases, towels, and face masks clean, as they can harbor bacteria that contribute to inflammation.
• Follow a simple skincare routine that includes a gentle cleanser, low-concentration BHA, moisturizer, and sunscreen.
• Get enough sleep and avoid staying up late, as elevated cortisol levels can worsen inflammatory acne.
• Manage stress effectively, since stress is one of the leading triggers of acne flare-ups.

If you combine a proper diet, healthy habits, and appropriate medical treatment, your acne condition can improve significantly and the risk of long-term recurrence can be greatly reduced.

If you are currently undergoing acne treatment but have not achieved the desired results, or if you are unsure which dietary plan or treatment protocol is most suitable for your skin, you may visit Gangwhoo Cosmetic Hospital for a professional consultation and the most appropriate medical treatment plan. At Gangwhoo Cosmetic Hospital, all acne, pigmentation, and scar treatment protocols are personalized for each skin type, ensuring maximum effectiveness and safety.