8 Signs That You May Be Zinc Deficient

Nausea

While nausea may be a symptom of a zinc deficiency, it may also be a sign of  too much zinc as well. Overdoses would most likely occur from a zinc supplementation, Dr. Hadjiev says. “If you eat a ton of oysters, every day, it is possible. You need to take a lot of darn oysters. It would be difficult to exceed [recommended zinc levels] on just food.” Moskovitz agrees that it is rare to experience zinc toxicity on food alone, but warns of greater dangers than nausea and diarrhea, noting severe damage can be done to the stomach lining, and there is the risk of developing anemia.