1, black beans are black seeds of leguminous soybeans. Also known as douchi, black beans and so on. The taste is sweet and flat. Black beans have the characteristics of high protein and low calorie, with black skin and yellow or green inside. Black bean skin extract can improve the absorption of iron in human body, and eating black beans with skin can improve anemia symptoms.

2. Soybean (scientific name: Glycine max) is also called Renqing black bean, soybean, mud bean, wasabi bean and canned bean. There are winter beans, autumn beans and mung beans, which are mainly produced in Northeast China. China, called fennel in ancient times, is a crop with rich seeds in protein. Leguminosae soybeans are oval and spherical in color, such as yellow, light green and black. Soybean is most commonly used for making various bean products, extracting soybean oil, brewing soy sauce and extracting protein. Grinding bean dregs or soybeans into coarse powder is also commonly used in livestock feed.

3. Black sesame (scientific name: black sesame) is the black seed of sesame, which contains a lot of fat and protein, and also contains nutrients such as sugar, vitamin A, vitamin E, lecithin, calcium, iron and chromium. It has the functions of invigorating stomach and protecting liver, promoting the growth of red blood cells, increasing melanin in the body, and is beneficial to hair growth.

4. Walnut, also known as walnut and peach, belongs to Juglandaceae. Together with almonds, cashews and hazelnuts, it is known as the world-famous "four dried fruits". Walnut kernel is rich in nutrition, with more fat and carbohydrate per 100g protein 15 ~ 20g. It also contains calcium, phosphorus, iron and other trace elements and minerals, as well as carotene, riboflavin and other vitamins. It is beneficial to the human body and can strengthen the brain. It is one of the nut foods deeply loved by ordinary people. Known as "Long live the son" and "longevity fruit".

5. Peanut, formerly known as groundnut (scientific name: peanut). ), a kind of nut with abundant output and extensive consumption in China, is also called "longevity fruit" and "groundnut". It belongs to the genus Panicum in Rosaceae and Leguminosae, with erect or creeping stems, 30-80 cm long, wings separated from keel, pod length of 2-5 cm, width of 1- 1.3 cm, swelling, thick pods, and flowering in June-August. Mainly distributed in Brazil, China, Egypt and other places. It can be used as raw material for cosmetics such as soap and hair tonic.