Kelp will be poisonous if eaten improperly. Kelp is rich in arsenic, which is harmful to the body. Before eating kelp, you should rinse it with water to dissolve the arsenic in the water. Soak the kelp for 6 hours. It can be eaten without being poisoned.

People with a weak spleen and stomach should not eat more kelp. According to the traditional Chinese medicine properties of kelp, its nature and taste are cold and salty. For people with gastritis, cold pain, diarrhea and other symptoms, people with a weak spleen and stomach should not eat more kelp. Generally speaking, it is not advisable to eat kelp. Patients with chronic atrophic gastritis and other diseases often experience stomach discomfort, nausea, dull pain and other symptoms after eating kelp, especially at night.

Cannot be used as a staple food. If kelp is used as a staple food, on the one hand, it will increase the intake of iodine and threaten the health of the thyroid. On the other hand, kelp is rich in dietary fiber, which will reduce the body’s response to fats and carbohydrates. , fat-soluble vitamins, etc. Such absorption affects the nutritional balance of the human body.