Hello, Thanks for your query. There are numerous causes for Muscle spasms. Some of the common causes are - Dehydration - Muscle fatigue - Poor blood circulation in the legs - Deficiency of either Calcium or Vitamin - Diabetes - Neurological problems like a pinched nerve in the lower back - Hypokalemia (low serum potassium levels) - Drug induced like, chronic use of STATINS, DIURETICS, ANTIASHTMATICS etc Activities that might help prevent muscle spasms include: • Drinking plenty of fluids to avoid dehydration • Stretching your thigh muscles or riding a stationary bicycle for a few minutes • Massaging the cramped muscle with your hands or with ice • Walking or jiggling the leg • Taking a hot shower or warm bath • These cramps at times may be associated with POTASSIUM deficiency and so foods such as bananas, potatoes, prune juice and dried fruit are to be taken as dietary supplement. • Also, calcium fortified foods like seafood and fish, almonds, flaxseed, oats, prunes, sesame seeds, tofu and kale can help to stave off muscle pain & spasm. • Avoid acidic foods and drinks like tomatoes and vinegar which blocks the body’s natural ability to absorb calcium leading to muscle aches & muscle fatigue. I do hope that you have found something helpful and I will be glad to answer any further query. Take care