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Iron-Rich Foods

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Spinach may not give you superhuman strength to fight off villains like Popeye's nemesis Bluto, but this leafy green and other foods containing iron can help you fight a different type of enemy -- iron-deficiency anemia.

Iron-deficiency anemia, the most common form of anemia, is a decrease in the number of red blood cells caused by too little iron. Without sufficient iron, your body can't produce enough hemoglobin, a substance in red blood cells that makes it possible for them to carry oxygen to the body's tissues. As a result, you may feel weak, tired, and irritable.

spinach and steak

About 20% of women, 50% of pregnant women, and 3% of men do not have enough iron in their body. The solution, in many cases, is to consume more foods high in iron.

How Your Body Uses Iron in Food

When you eat food with iron, iron is absorbed into your body mainly through the upper part of your small intestine.

There are two forms of dietary iron: heme and nonheme. Heme iron is derived from hemoglobin. It is found in animal foods that originally contained hemoglobin, such as red meats, fish, and poultry. Your body absorbs the most iron from heme sources. Nonheme iron is from plant sources.

 

 

Iron-Rich Foods

 Very good sources of heme iron, with 3.5 milligrams or more per serving, include:

  • 3 ounces of beef or chicken liver
  • 3 ounces of clams, mollusks, or mussels
  • 3 ounces of oysters

Good sources of heme iron, with 2.1 milligrams or more per serving, include:

  • 3 ounces of cooked beef
  • 3 ounces of canned sardines, canned in oil
  • 3 ounces of cooked turkey

Other sources of heme iron, with 0.7 milligrams or more per serving, include:

  • 3 ounces of chicken
  • 3 ounces of halibut, haddock, perch, salmon, or tuna
  • 3 ounces of ham
  • 3 ounces of veal

Iron in plant foods such as lentils, beans, and spinach is nonheme iron. This is the form of iron added to iron-enriched and iron-fortified foods. Our bodies are less efficient at absorbing nonheme iron, but most dietary iron is nonheme iron.

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