How are peanuts and chestnuts different?

Peanuts and chestnuts differ in their botanical classification and culinary uses. Peanuts are legumes, belonging to the family Fabaceae, and grow underground, whereas chestnuts are nuts from trees in the family Fagaceae and grow on trees. Nutritionally, peanuts are higher in protein and fat, while chestnuts are starchy and lower in fat. Additionally, peanuts are often used in savory dishes and snacks, while chestnuts are commonly roasted or used in desserts.