Consumers spend about $100 million annually on zinc supplements. Here are six reasons to keep the cash in your pocket and skip the zinc this cold season.
  1. Zinc Won’t Relieve Your Cold Symptoms
    An April 9, 2014, review in the Journal of American Medical Association found that taking zinc had no effect whatsoever on the severity of the symptoms.
  2. Unpleasant Side Effects
    Zinc can have some pretty unpleasant side effects. These include leaving a foul taste in your mouth and making you feel nauseated.
  3. Zinc Can Be Literally Be Toxic
    Too much zinc can cause nausea, vomiting, stomach cramps, diarrhea, and other problems. The National Institutes of Health advises that unless you’re taking zinc for medical reasons under the care of a doctor, the maximum daily limit you should get is 40 mg.
  4. It Can Interact With Your Other Meds
    Zinc has been shown to interact with various prescription medicines.
  5. Zinc Can Cause Health Problems
    Getting too much zinc may increase the risk for prostate cancer, lead to copper deficiency and neurological problems, and reduce levels of HDL (good) cholesterol. What’s more, zinc products may also contain cadmium, and long-term exposure to high levels of cadmium can lead to kidney failure.
  6. You Might Lose Your Sense of Smell!
    Several years ago, the Food and Drug Administration took several zinc nasal products off the market after receiving more than 130 reports from people who had used certain nasal Zicam Cold Remedies and lost their sense of smell—some permanently.