About one in five women of reproductive age have iron deficiencies. The experiences can range from shortness of breath to feeling lethargic, tired and run down. This is especially true for vegans who do not get enough iron in their food. Iron is very important for the body, as it carries oxygen to the brain and tissues. A lack of iron can lead to a short of oxygen, resulting in apathy, shortened attention span, fatigue and problems concentrating. Other symptoms are cold hands and feet, split nails and restless legs. Also, without iron, your body has a more difficult time processing B vitamins, which can make you susceptible to illnesses and infections. So, especially this upcoming winter season, make sure to eat meals that are rich in iron.