Iron is a mineral that plays a vital role in health and well-being. Without it, many bodily functions would malfunction. The role of iron is to carry oxygen in the blood to every cell in the body.
Iron is an important component of hemoglobin, the protein in red blood cells that carries oxygen from the lungs and transports it throughout the body.
If your body doesn't have enough iron, it cannot produce enough healthy oxygen-carrying red blood cells.
There are two types of iron: heme iron from animal sources and non-heme iron from plant sources. Heme iron is absorbed more readily by the blood. Foods rich in iron include beef, liver, oysters, beans, fortified cereals, and dark leafy greens like spinach.
Insufficient iron levels can wreak havoc all over the body. Here are seven surprising signs you may have iron deficiency.
1. Extreme fatigue and exhaustion “Fatigue is one of the most common signs of iron deficiency because it means your body is having trouble carrying the oxygen to your cells so it’s affecting your energy levels,” Thayer says.
People lacking enough iron in their blood often feel sluggish, weak, and unable to focus. Though fatigue can be the sign of numerous conditions, if it does not go away with adequate rest, consider having your iron levels checked.
2. Frequent infections Iron plays a key role in a healthy immune system, so lower levels of the mineral can make someone more susceptible to infections. “Red blood cells help to transport oxygen to the spleen, which is one place where infections can be fought off,” Dr. Murr says.
Red blood cells also carry oxygen to the lymph nodes, which house infection-fighting white blood cells. “When someone has an iron deficiency, the white blood cells aren’t being produced as well, and they’re not as strong because they’re not getting enough oxygen, making that person more susceptible to infections,” she says.
3. Pale skin Hemoglobin gives skin its rosy color, so low levels cause the skin to become lighter.
“When red blood cells become low in iron, they become smaller and paler in the center so skin also becomes paler,” Murr says. This may be easier to detect in people with lighter complexions, but no matter what your skin tone, if the area inside your bottom eyelid is lighter than normal, this may be a sign of iron deficiency.
4. Swollen tongue Changes to your tongue, including soreness or swelling, can be a sign of iron deficiency. Cracks on the side of the mouth are also common among people with iron deficiency.
5. Restless Legs Syndrome Some people who have iron deficiency develop restless legs syndrome, a disorder that causes you to have a strong urge to move your legs. The urge often comes with an unpleasant, crawling sensation in the legs that can make it hard to sleep.
6. Pica People with iron deficiency may develop cravings for non-food substances, such as clay, dirt, or chalk, a condition known as pica.
However, submitting to your cravings and eating these substances could be harmful, as it may lead to the ingestion of harmful toxins and substances. “Eating clay, chalk, and dirt can actually interfere with absorption of iron,” says Murr.
7. Hair loss Iron deficiency, especially when it develops into anemia, can cause hair loss. “When hair follicles don’t get enough oxygen, they go into a resting stage, and hair falls out and doesn’t grow back until anemia is improved,” Murr says. It is normal to lose about 100 strands of hair per day. However, if you notice your hair loss is excessive and it is not growing back, this may be a sign of iron deficiency.
If you’re experiencing these symptoms and think you may be iron deficient, speak to your doctor. He or she can help you get to the root cause of your iron deficiency, find ways to include more iron-rich foods in your diet, and determine whether you need to take supplemental iron.
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