. Check whether there is a health food logo in the upper left corner of the product logo.

2. Check whether there is an approval number below the health food logo.

One is Weishijianzi, which is the document number of the "Health Food Approval Certificate", such as Weishijianzi 1997 No. 088, and the other type approved after 2003 is Guoshijianzi , such as National Food Health G20050197, valid for 5 years.

The imported health food is Wei Shi Jian Jin Zi 1997 No. 003, and the imported health food after 2003 is Guo Shi Jian Jin Zi J20050005.

3. Check the authenticity of the approval number online.

Log in to the State Food and Drug Administration website. In the lower left corner of the homepage, there are query links for domestic health food, imported health food registration numbers and product-related information. If one item is not met, it can be judged as a fake.

4. The next step is to check the health function.

Before 2003, the Ministry of Health had 22 types, and the State Food and Drug Administration had 27 types after 2003. The content and expression are slightly different. However, you cannot claim to have curative effect. Those that claim to have curative effect or imply that they have an effect on diseases are all fake.