Evidence supporting the use of: Salt (sea)
For the body system: Sweat Glands
Synopsis
Source of validity: Scientific
Rating (out of 5): 4
Sea salt, which is chemically similar to regular table salt (sodium chloride), plays a vital role in supporting the function of sweat glands due to its sodium content. Scientific evidence shows that sodium is a critical electrolyte in the human body and is lost through sweat during thermoregulation, especially under conditions of high temperature or intense physical activity. The sweat glands excrete water and electrolytes, primarily sodium and chloride, to cool the body. When sodium levels drop significantly due to excessive sweating without adequate replacement, it can lead to hyponatremia—a potentially dangerous condition. Replenishing sodium through dietary intake, including sea salt, helps maintain electrolyte balance and supports normal nerve and muscle function. While the body generally regulates sodium levels tightly, in cases of heavy and prolonged sweating (such as in athletes or during heat waves), replacing lost sodium is medically advised. Most scientific studies focus on sodium rather than specifically on sea salt, but the principles apply equally. However, excessive salt intake is associated with health risks, so its use should be balanced. In summary, there is a solid scientific basis for using salt to support the sweat glands' functioning by maintaining electrolyte balance, particularly in scenarios involving significant sweat loss.