Using in wash supplies, such as toothpaste, shampoo and creams as a friction agent, to effectively remove dirt for the better clean result.
Using as an additive in so many foods such as white bread, blue cheese, ice cream, canned vegetables, sweets, soy products, processed meat or fish, soup, etc.
Gypsum has many other uses in life, for example, it can be made into fertilizer to provide plant nutrition, chalks as well as gypsum board. So, the questions is: how to process gypsum before using it?
https://www.mclanahan.com/blog/five-things-you-didnt-know-about-gypsum
https://www.ftmmachinery.com/blog/5-most-valuable-things-you-need-to-know-about-gypsum.html
https://homeguides.sfgate.com/gypsum-dangers-81601.html
https://fabe.osu.edu/sites/fabe/files/imce/files/Soybean/Gypsum%20Bulletin.pdf