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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.
26 Jun 2013. I had foot and leg cramping like that. I have a sleigh bed, and would have to push my feet against the footboard to stop it! I had a hip replaced and it stopped. Low potassium levels can cause muscle cramping, and some medications, in my case cymbalta and bishoporol both deplete my potassium.