Carrots: Good for health

This vegetable is orange thanks to high levels of beta carotene, which is a precursor to vitamin A (which also happens to be a form of the main active ingredient in Retin-A). This vitamin is an antioxidant has been found to decrease the skin's oil production, and there's also some evidence that it can improve psoriasis. You can also find vitamin A in leafy greens, squash and mangoes.