Minerals, like vitamins, are essential elements for the human body and cannot be produced or synthesized by themselves, but some vitamins are not abundant in local foods. If consumers choose to supplement mineral elements in inorganic form, there are often a series of problems, such as poor absorption and large side effects. Yeast can solve this problem perfectly. For example, yeast can convert selenium absorption from sodium selenite into selenomethionine and zinc absorption from zinc chloride into protein binding form. Experimental evidence shows that bioavailability and safety are greatly improved.