Nitrite is used as a coloring agent in the production of cooked food products (such as ham, which is available in all hams), which can make the meat colorful! The content of nitrite in ham has mandatory restrictions in the country!
As long as it is a big brand product with formal channels, there should be no problem! You can use it with confidence!
However, the current health concept has not advocated long-term and large-scale consumption of ham. After all, nitrite has a carcinogenic effect! It's ok to solve the problem occasionally, and don't eat a lot for a long time! Increase unhealthy factors! For reference only!