Check out these best-sellers and special offers on books and newsletters from Mayo Clinic. 1  Mayo Clinic Health Letter. 2  Mayo Clinic on Better Hearing and Balance. 3  Mayo Clinic A to Z Health Guide. 4  Mayo Clinic Guide to a Healthy Pregnancy. 5  The Mayo Clinic Diet Online.
Medical conditions such as diabetes can cause foot cramps due to the lack of oxygen supplied to the feet. It is very important that you eat properly and get enough vitamins and minerals. A lack of potassium in your system can cause cramps in your feet and legs. Vitamin D is also important to healthy feet and bones.
Further exam: Cramping can be due to using muscles that you don't normally use. Sometime from doing activity that uses the small muscles in the foot not used in daily activity. It could also be due to dehydration, an imbalance of potassium/sodium, response to prescription medications... As well as many other causes.