Is Tianshi High Calcium Nutritional Granules on JD.com true or false?

Basically there are no fakes. The sales volume is not high and no one makes fakes. Chitin was extracted from the surgery of crustaceans by French scientists in 1823. Chitin is widely found in crabs, shrimps, crustaceans, insects and mushrooms. After surgery on crabs and shrimps, use dilute alkali solution to remove protein and dilute hydrochloric acid to remove calcium. The resulting material is called chitin. Chitin is insoluble in salt and alkali and insoluble in water, making it difficult to be utilized by the human body. Chitin must be put into concentrated alkali solution and heated to 80-120 degrees Celsius. After removing the acetate group, it is called chitosan. Chitosan can only be used by the human body when it is dissolved in dilute acid and body fluids. Chitosan, which is obtained by removing the acetic acid group from chitin, is a purely natural, alkaline polymer polysaccharide. It is also the only positively charged substance that inhibits natural edible fiber. The chitin deacetylation acidity of Tiens Chitin Capsules reaches 85%, with high purity and stable quality. It is an excellent functional health food for modern people. It is sold well in Russia, South Africa, the United States and other countries and regions, and is deeply loved by everyone.