Toon leaves are not poisonous, and moderate consumption can provide the body with carbohydrates and other nutrients. Every 100 grams of toon leaves contain 23 calories, of which 2.97 grams of protein, 3.75 grams of water compounds, 0.26 grams of fat, vitamin C9.8 mg, calcium 136 mg, iron 3.57 mg. Toon leaves are more nutritious, calcium content is especially prominent, ranked in the top of similar foods. Toon leaves are low in calories and moderate consumption will not increase the burden on the body. Weight-loss people and patients with hyperlipidemia and hypercholesterolemia can consume it in moderation. There is no special contraindication. Toon leaves do not contain toxic substances and are not harmful to the human body. However, toon leaves should not be consumed in excess, otherwise it is easy to lead to indigestion symptoms, while affecting the intake of other nutrients. Toon leaves are best used fresh leaves to eat, with meat, staple food, is conducive to nutritional balance.