Question: what is most common side effects of zinc?
Answer: Nausea and Vomiting. Share on Pinterest. ... 
Stomach Pain and Diarrhea. Typically, stomach pain and diarrhea occur in conjunction with nausea and vomiting. ... 
Flu-Like Symptoms. ... 
Low “Good” HDL Cholesterol. ... 
Changes in Your Taste. ... 
Copper Deficiency. ... 
Frequent Infections.