Spasms and cramps affect both the smooth and skeletal muscles. Small vessels that enter the muscles and subdivide into permeating capillaries deliver nutrition to the tissues. Muscle contraction depends upon the conduction of electrical impulses via minerals called electrolytes (potassium, sodium and chloride). Other minerals including calcium also play very important roles. If nutrient supply declines in a local area of tissue, or if free calcium is not removed, the affected muscles can go into spasm. Magnesium helps to maintain the intracellular homeostasis of potassium and calcium, so in natural medicine circles it is said "If it spasms, give magnesium" (Wright J., 1990).  Simple addition of magnesium for a few weeks can often solve this problem. If that does not work, next try potassium, then calcium.

When I was young, I used to get leg cramps and severe muscle spasms several times a year. After I began to watch my diet and emphasize nutrition in my late teens, I never had this problem again. Nutrient supply can also decline as a result of poor circulation, poor nutrition, inflammation, mechanical trauma, and overuse of pharmaceutical medications. We must address each of these problems individually.

A major and often overlooked cause of back pain and stress is simple muscle tension, which often precedes and sets the stage for nutrient problems by restricting circulation. One common cause is the postural stress that results from sitting at a desk at work for hours at a time. Simply stretching out periodically, or getting regular manual therapy can provide considerable relief.

• To calm muscle spasms with herbs and nutrients, patients should first try the magnesium, potassium and calcium, but aafter the problem resolves, continue daily use of a mineral supplement, especially full-spectrum products that contain all 13 essential minerals and Vitamin D. 

• Manual therapy or local applications of heat can be helpful, and a tincture of lobelia and cayenne pepper can often provide quick relief.  TCM doctors recommend long-term use of siler root (fang feng or Ledebouriella divaricata) and dang gui root to treat muscle spasms. Kudzu roottaken internally is very useful for tension and spasm, especially in the neck and shoulders.