Nut doesn't just refer to any fruit. Nut (English name: Nut) is a classification of closed fruit, with hard skin and 1 seed or multiple seeds. Such as chestnut, almond and other fruits. Nuts are the essence of plants, which are generally rich in nutrition, and contain protein, oil, minerals and vitamins.

Nuts are generally divided into the following two categories:

1, tree nuts, including almonds, cashews, hazelnuts, walnuts, pine nuts, chestnuts, ginkgo (ginkgo biloba), pistachios, macadamia nuts, and so on.

2. Seeds, including peanuts, sunflower seeds, pumpkin seeds and watermelon seeds.