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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.
Hereâs what causes these cramps, as well as tips to help prevent them. RELATED: Your Feet Hold Clues to Clogged Arteries. 7 common causes for cramps. Whether day or night, your foot and calf muscles can spasm or cramp. This can happen to various muscles â not just in the legs or feet â though these cramps are often most uncomfortable. Causes for muscle cramps include: