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The Best Iron Supplement for Low Ferritin Levels

by
author image Melodie Anne
Melodie Anne Coffman specializes in overall wellness, with particular interests in women's health and personal defense. She holds a master's degree in food science and human nutrition and is a certified instructor through the NRA. Coffman is pursuing her personal trainer certification in 2015.
The Best Iron Supplement for Low Ferritin Levels
Low ferritin levels leave you feeling weak and tired and decrease concentration. Photo Credit Pinnacle Pictures/Photodisc/Getty Images

Iron deficiency, typically measured as ferritin in your blood, is the most common nutritional deficiency in the United States. This mineral is a part of all your cells and most enzymes. As a component of hemoglobin, iron is vital for carrying oxygen throughout your body. Insufficient hemoglobin results in anemia, a condition characterized by weakness, fatigue and suppressed immunity. There is an array of iron supplements to boost ferritin levels, but select one your body absorbs well and doesn’t cause unpleasant side effects. (entire section, reference 1)

Ferritin Explained

Ferritin is a protein in your cells responsible for storing iron for future use. If your doctor orders a blood draw to determine your ferritin levels, he is measuring the amount of iron in your blood. Your blood ferritin levels correspond to how much iron you have stored. Males should have a ferritin level between 12 and 300 nanograms per milliliter and females should have a level between 12 and 150 nanograms per milliliter. Even at the low end of this range, your iron stores are inadequate and your doctor might recommend an iron supplement. (entire section, reference 2)

Choosing a Supplement

Most iron supplements are available without a prescription, and you can easily become overwhelmed by all your choices. You’ll find tablets, capsules and liquid drops with differing amounts of iron, iron salts, combinations and dosing requirements. Iron pills are frequently offered as ferric or ferrous. According to anemia.org, your body absorbs ferrous salts best, which you’ll readily find as ferrous sulfate, ferrous gluconate and ferrous fumerate. All three are easily absorbed, but ferrous sulfate costs less and is most commonly used. (entire section, reference 3)

Taking Your Supplement

Take your iron supplement 2 to 3 times a day because the more iron you take at once, the less you absorb. Your stomach needs to dissolve iron supplements quickly so the iron can be absorbed in your intestines. Long-acting supplements don’t dissolve in your stomach and may be completely useless. Caffeine and calcium-containing foods and beverages interfere with iron, but vitamin C boosts iron absorption. If you are on medication, speak with your doctor. Certain medications, including antacids, H-2 receptor blockers and proton pump inhibitors decrease iron absorption. (entire section, reference 3)

Side Effects

Iron supplements may cause uncomfortable gastrointestinal side effects including nausea, vomiting, constipation, diarrhea and stomach pain. Increase your iron intake by taking half of the recommended dose and slowly increasing to the full dose. Divide the dose or take it with food, although this can decrease how much you are absorbing. You can also take a stool softener to treat constipation or consider another supplement form. (reference 3) The Office of Dietary Supplements states heme polypeptides, carbonyl iron, iron amino acid chelates and polysaccharide-iron complexes have fewer reported side effects. (reference 4)

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