Fresh parsnips can be eaten, but be careful to eat them in moderation, and those who are allergic to parsnips are prohibited from eating them. Daily diet is recommended to blanch before cooking. Toon is a kind of vegetable that grows on the tree, has a certain nutritional value, every 100 grams of fresh toon tender leaves have about 5.7 to 9.8 grams of protein, 0.4 to 0.9 grams of fat, 2.5 to 2.78 grams of crude fiber. There are also vitamins such as vitamin C, vitamin B1, vitamin B2, and minerals such as calcium with 110 mg per 100 grams and potassium with 548 mg. The volatile oils in parsnips have a unique flavor and promote appetite. But the toon is recommended to blanch before eating, because in the toon contains a certain amount of nitrite, through the blanching of the way you can make the nitrite content is greatly reduced, but also to remove the bitter flavor.