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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.
Foot cramps can be the result of numerous factors including a lack of potassium. Eat your bananas! When you are potassium deficient, your body's chemistry gets off kilter and can't get regulated, which can result in foot cramps. Potassium is a mineral that is found in salt.