15 Signs You May Have an Iron Deficiency
Your tongue looks weird
Besides sapping the color out of your tongue, low iron counts can reduce levels of myoglobin, a protein in red blood cells that supports muscle health, like the muscle that makes up the tongue, Dr. Berliner says. As a result, many people who are iron deficient complain of a sore, inflamed, and strangely smooth tongue.
Get the latest health, fitness, anti-aging, and nutrition news, plus special offers, insights and updates from Health.com!