Will eating winter vegetables warm my body? After doing a little research, it seems that foods that come from cold regions or are in season during the winter warm the body. Since it is a cold region, it seems that it has become natural for us to eat warm foods and to grow foods that suit the environment. In warmer regions, the opposite appears to have been created, creating an environment where food can cool the body.
　
For example, ``potato'' is a vegetable that warms the body. Things buried under the ground have the property of warming the body. Therefore, root vegetables and potatoes are vegetables that warm the body.
Also, most fruits cool the body, but apples and grapes seem to have properties that do not cool the body.
Farm Department Naoki Miura