Restless legs syndrome is experienced by certain persons who are iron deficient. Restless legs syndrome is a neurological condition that causes sufferers to have an insatiable need to move their legs. According to Dr. Modi, sharp aches, numbness, and tingling in the legs are possible. Persons with restless legs syndrome may also experience headaches, problems sleeping, and irritability. Iron is needed for blood to be oxygenated properly. When you are iron deficient, your blood cannot be properly transported around your body. This can lead to symptoms such as those associated with low iron levels: confusion, difficulty concentrating, memory problems, pain, rapid heart rate, shortness of breath, and sore muscles. The best way to check your iron level is through blood tests. Other methods include bone marrow testing or using MRI scans to look at muscle tissue. If your blood tests come back low iron, ask your doctor about taking oral supplements. Also consider adding meat to your diet if you are anemic. Eating more meat will help get more iron into your system.