Lotus seed (liánzǐ, 莲子)

Lotus seed may not be as famous as ginseng, but it is ubiquitous in China, found in soups, teas and even fresh in stir fries. In TCM, it is thought to improve the functions of the spleen and kidneys, as well as helping regulate diarrhea. Lotus seeds are also rich in calcium, phosphorus and potassium, which are great for nourishment – and the fiber improves digestion as well.