Toona sinensis bud contains a certain amount of nitrate and nitrite, which is irritating to the stomach. Blanch the water before eating, which can reduce a large part after blanching, thus preventing food poisoning.

However, it should be noted that the nitrite content in Toona sinensis buds is not high. Under normal circumstances, people may have toxic reactions when they eat about100g of Toona sinensis. As long as you don't eat Toona sinensis in large quantities and don't drown, you generally won't be poisoned. But if they eat about 100 grams of Toona sinensis at one time without drowning, poisoning may occur.