You can eat it, and the part to eat is the bulb. There are nodes and axillary buds on taro, which are distinctive features of the stem, making it a stem, not a root.

Taro contains a variety of minerals, including some calcium and fluoride, which are good for dental care, helping to prevent cavities and keep teeth clean.

Taro is rich in dietary fiber, which can help the growth of beneficial digestive bacteria in the intestinal tract, promote intestinal peristalsis, for constipation has some benefits. Chinese medicine also believes that taro has the role of nourishing the stomach and spleen, detoxification, beneficial to the liver and kidneys, regulating the role of the central qi.

Extended information:

Taro contains water-soluble polysaccharides, mostly miscellaneous polysaccharides, taro polysaccharides extraction method is less to water extraction method. Studies have shown that taro polysaccharide also has a variety of biological activities.

The study found that taro polysaccharide has inhibitory effect on streptozotocin-induced diabetes mellitus in rats, and can increase the activity of small intestinal disaccharidase, with the function of lowering blood sugar. Wang Hongpu et al. concluded that taro neutral polysaccharide can well synergize with ConA to promote the proliferation of mouse splenic lymphocytes and the maturation and differentiation of T-cells, and also significantly improve the phagocytosis of peritoneal macrophages, which has a good immunomodulatory effect.

Baidu Encyclopedia - Taro