The leaves of celery are not poisonous. You can eat them but celery leaves have a bitter taste.

Celery leaves are unfortunate because a large number of the nutrients in them cannot be utilized by the body. Celery leaves contain 2% protein, 10% carbohydrates, and contain calcium, phosphorus, iron, vitamins A, C, P and niacin.

In addition, it also contains genistein, volatile oil, mannitol, cyclohexanol and so on. It is especially worth mentioning that the carotene and vitamin C in celery leaves are much more than those in celery stems, which is a good nutritional health dish. It has the effect of stomach, diuretic, blood purification and menstruation, lowering blood pressure, sedation, etc. Because of its high iron content, it can also be used as a health care vegetable for iron deficiency anemia.

As for the bitterness of celery leaves, it can be removed by blanching them before consumption. Celery stems also have a bitter flavor, and the consumption of celery stems and not celery leaves is caused by people's dietary habits.