It is not recommended to eat parsnips raw, try to blanch them in hot water for about a minute before using fresh parsnips Eat parsnip, should pick its fresh shoots, with the prolongation of storage time, the content of nitrite will increase, especially with the salt pickled parsnip shoots, which contains nitrite is more. Excessive intake of nitrite increases the risk of malignant tumors such as stomach cancer. In addition, eating raw parsnips may have an astringent taste, which in turn may affect appetite, and parsnips also contain oxalic acid, which may affect the body’s absorption of calcium. It is recommended to try to blanch the toon in hot water for about a minute before eating it, which not only makes the taste better, but also removes part of the nitrite and oxalic acid, which is good for human health. Glaucoma, diabetes and kidney disease patients should be cautious of eating toon, may aggravate the condition.