Because yam itself has certain medicinal value, its nutritional value may be better than potato flour, because yam is rich in a lot of amino acids and various nutrients and trace elements, so when we buy vermicelli, if we want to have better nutritional value, we can give priority to choosing yam flour.

If you think yam powder is too expensive, you can give priority to potato powder, because it will taste smoother, stronger and has no peculiar smell. If it is used for stewing meat or cabbage, it will taste better.