High in salt and preservatives, these foods can dehydrate the skin, causing dullness and exacerbating fine lines.
While not harmful for everyone, gluten can exacerbate skin conditions like dermatitis and psoriasis in those who are sensitive to it.
High in trans fats, fried foods can lead to clogged pores and acne, as well as contributing to skin's oiliness.
Found in diet drinks and sugar-free snacks, these can cause inflammation and skin irritation in some individuals.