1. Appearance: Walnut and Walnut are slightly different in shape. Walnut shells are usually oval, with obvious longitudinal grooves on the surface, and the nuts are large and rectangular. Walnut shell is round, the surface is smooth, and the nuts are small and round.
2. Taste: The nut of walnut tastes sweet, delicate and slightly milky. Walnut kernel is rich in fragrance, crisp and slightly bitter in taste.
3. Nutritional value: Walnut is rich in unsaturated fatty acids, protein, cellulose, vitamin E and other nutrients. The content of unsaturated fatty acids, especially ω-3 unsaturated fatty acids, is high, which is beneficial to cardiovascular health.