Long-term moderate consumption of spirulina by women is generally not particularly harmful, but should not be consumed by patients with hyperthyroidism. Spirulina belongs to a kind of ancient low-level prokaryotic aquatic plants, and there are 2 kinds of them used for production in the world, blunt-topped Spirulina and extremely large Spirulina. It is characterized by high protein, low fat and low sugar. Its protein content reaches 60%~70%, and contains a complete range of essential amino acids with reasonable composition. It is rich in vitamins and chlorophyll to meet the nutritional needs of the body. Due to the high content of iodine in spirulina, it is not suitable for patients with hyperthyroidism to avoid aggravating their condition. It is recommended to reasonably match with other foods and take it according to your own situation to achieve balanced nutrition.