1, Fruit: Eat seasonal fruits, for example, it is winter, and it is enough to eat an apple and an orange every day. Fruit contains sugar, so you should eat it in moderation, not more.
2, vegetables: eat more green leafy vegetables, high folic acid content. Such as lettuce, spinach, tomatoes, carrots, vegetables, asparagus, cauliflower, rape, Chinese cabbage, lentils, pods, mushrooms and so on.