The lake water in the green algae production base is seriously polluted, and the heavy metal content of green algae has been exposed. The most offensive thing is that their company promotes that taking green spirulina before drinking can treat tumors, lose weight and protect liver, which seems to be a panacea for all diseases. Advertisements that have deceived consumers for so many years and are still exaggerating. I hope that government departments can manage it. In fact, spirulina grows in large quantities in the Yangtze River, Fujiang River and Yangtze River, and hundreds of tons can be salvaged in one day. There used to be little spirulina in these places, but now there are more spirulina because of serious water pollution. To put it bluntly, the water is clean and it is impossible to grow spirulina. Spirulina must grow in water with extremely poor water quality. When spirulina is planted artificially, a large amount of nitrogen and phosphorus fertilizers should be applied to the water to dump the excrement. Most spirulina products contain heavy metals, which is also caused by pollution. The price of artificially cultivated spirulina powder in the international market is about 4100t. No one abroad treats it like a pig. It's really incomprehensible to sell such a high price in China!