Iron stick yam and yam belong to one kind of yam, but their appearance is different. Iron stick yam is long, yam root is long, and the surface is rough.

In terms of nutritional components, iron stick yam is rich in protein, amino acids and vitamins, while yam is rich in starch, protein, amino acids and vitamins, and their nutritional components are different.

In terms of efficacy, iron stick yam has the effects of invigorating spleen and stomach, promoting fluid production and benefiting lung, tonifying kidney and astringent essence, while Huai yam has the effects of invigorating qi and nourishing yin, invigorating spleen and lung and kidney, and stopping leukorrhagia.

Taboo, iron stick yam should not be eaten with kansui, spurge, seaweed and other foods to avoid adverse reactions. Yam has no clear food taboo, but it is not suitable for people who are allergic to yam. Yam has no clear food taboo, but it should not be eaten with rice, kelp, seaweed and other foods.