Recently, Grandma Zhang has been experiencing frequent leg cramps at night. She doesn't know what to do about it. Her husband tells her: "Lower back pain, leg cramps - you need calcium," an advertisement slogan that is "known to all Earthlings." So, Grandma Zhang went and bought two bottles of calcium supplements. However, after taking them for two days straight, Grandma Zhang's leg cramps have not disappeared.
Many elderly people experience leg cramps and start taking calcium tablets, but the results are usually not significant. It is now believed that leg cramps are not necessarily due to calcium deficiency; therefore, relying solely on calcium supplementation sometimes cannot solve the problem. Leg cramps, also known as gastrocnemius spasms, are involuntary and irregular muscle contractions that occur in one of the lower limbs. They often happen at night or in cold conditions, and the majority of those affected are elderly individuals. In many cases, calcium supplementation does not alleviate the symptoms. Studies indicate that...