What kind of food can promote skin repair ie acne scars?

Low glycemic foods. If high glycemic diet promotes inflammation, it only makes sense that the opposite, low glycemic diet, will prevent inflammation. A low glycemic diet that includes whole grain foods, vegetables, fruits, beans and legumes which are digested slowly, meaning a slow release of energy and no insulin spikes. No insulin spikes = lower inflammation = fewer breakouts. Win win.

Vitamin C. If you’ve been skin-conscious and have done some of your research, you’ve most likely come across vitamin C as a magical vitamin for the skin. (Need more vitamin suggestions? Learn about vitamins for acne here and here!!) Vitamin C is a good –no, POWERFUL–antioxidant. It also promotes collagen formation, skin elasticity, and dirt extraction when applied topically. All of these contribute to smaller pores! Vegetable sources of vitamin C are broccoli, spinach, kale, chives, parsley, etc. For topical application, you can puree or juice vegetables that are rich in vitamin C and include it in your daily facial cleanser to tighten your pores!
Zinc. Vegetables high in zinc may reduce the inflammation of skin–therefore reducing the appearance of large pores. Vegetable sources are mushrooms, squash, zucchini, and spinach.

Polyphenols. Polyphenols are found in tea. Green, black, white, and oolong specifically. There have been studies that have found that polyphenols in tea have anti-inflammatory properties; which may help you with your large pores as well!
Selenium. Selenium helps promote skin elasticity, reduce skin inflammation, and helps in the regulation of glutathione peroxidase, a powerful antioxidant. Selenium can be found in aromatic vegetables such as onion, and garlic. But it can also be found in Brazil nuts (best source), brown rice, chia seeds, sunflower, sesame, and flax seeds as well