Answer:
40 mg
The tolerable upper intake level for zinc for adults is 40 mg.
Explanation;
According to US Food and Nutrition Board the tolerable upper intake level (UL) for adults is 40 mg/day, including dietary and supplemental zinc.
-Zinc is a very important mineral element in the body, It is needed for the body's defensive (immune) system to properly work, plays a role in cell division, cell growth, wound healing, and the breakdown of carbohydrates. and is also needed for the senses of smell and taste.