IN THIS ARTICLE How Your Body Uses Iron in Food Iron-Rich Foods How to Get More Iron From Your Food 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 anaemia health and fitness  . Iron-deficiency anaemia, the most common form of anaemia, is a decrease in the number of red blood cells caused by too little iron. Without sufficient iron, your body can't produce enough haemoglobin, 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. About 20% of women, 50% of pregnant women, and 3% of men do not have enough iron in their bodies. The solution, in many cases, is to consume more foods high in iron....