It is important to eat a nutrient-dense diet. Fruit and vegetables are an excellent source of vitamins, minerals and anti-oxidants. They are also a great source of nutrients like fiber which is important for a healthy gut, folate, vitamin A, C and potassium.
Be very moderate or try to avoid refined sugar and refined oils. It is also better to limit the consumption of processed food, junk food and artificial ingredients which contain too much salt, sugars and empty carbohydrates.