Classification by season: apples are fall fruits.

Categorized by region: apples belong to the northern fruits.

Categorized by fruit: apples belong to the nut fruits.

Categorized by nature: apples belong to cool food.

Apple is also known as ping pao, belongs to the warm fruit, its sweet and cool nature, has the effect of replenishing the spleen qi, nourishing the stomach yin, generating fluids and quenching the thirst, moistening the lungs and pleasing the heart, and it is known as the protector of cardiovascular health. More consumption can improve the respiratory system and lung function.

Apple belongs to the Rosaceae family, deciduous trees, leaves oval, serrated; fruit spherical, sweet flavor, is a common fruit, but also the most common fruit, rich in nutrients, is the world's four major fruits (apples, grapes, oranges and bananas) of the crown. Apples are usually red in color, although they can also be yellow and green. Apples are dicotyledonous plants with reddish or purplish-red flowers, mostly sterile and requiring cross-pollination, and fruits developed from the ovary and receptacle. The flesh is crisp and sweet and aids in digestion.

Nutritional value of apples

Apples are known as "wisdom fruit" and "memory fruit". People have long found that eating more apples has the effect of enhancing memory and improving intelligence. Apples are not only rich in sugar, vitamins and minerals and other essential nutrients for the brain, and more importantly, rich in zinc. According to research, zinc is a component of many important enzymes in the human body, and is a key element in promoting growth and development. Zinc is widely involved in protein, fat and sugar metabolism through enzymes. Zinc is also an essential element in the formation of nucleic acids and proteins, which are closely related to memory. Zinc deficiency can make the cerebral cortex edge of the hippocampal region of poor development, affecting memory, experiments have also proved that the reduction of zinc in the food, the young children's memory and learning ability to be seriously impaired. Zinc is also closely related to the production of antibodies, improve human immunity.