Nowadays, natto products are gradually accepted by consumers in China market. When asked if there are any certified products in China, Dr. Yang Hang clarified the current chaotic market in China: "At present, I find that some companies in China use my portrait and name in large quantities, and even publish my books in my name. Here, I want to make it clear that I haven't published any books in China, or even translated versions, and I have nothing to do with these companies. To be sure, the natto products of these companies have nothing to do with me, and I certainly won't make any recommendation or guarantee for their products. At present, we are negotiating with lawyers. I reserve the right to investigate the legal responsibility of those bad companies that embezzle and infringe on my right to name and portrait. I respect the consumers in China very much, and I hope they can use the products with really high content of nattokinase. At present, the only product I have tested is Japanese Qinghe snow natto. The raw materials used in this product are Japanese standard products and the only raw materials used in my research on nattokinase. It also uses my latest research and certified IU results to prove its effect. In addition, I know nothing about other nattokinase products sold in China. I hope that consumers will not be used by some manufacturers and be deceived. "
Dr Sumitomo sincerely stated that the distant ancestor of natto came from China, and he always hoped to help manufacturers provide consumers with truly high-quality products through the latest testing methods. And through the clarity of authorized products, it will bring consumers a more secure buying environment; Then make full use of soybean resources in China, so that more people can benefit from it, and let natto really return to China.