The health benefits of salt also apply to children. A recent Washington Post article notes that it’s possible that sodium aids growth. “As scientists from New Jersey Medical School found out, if you put rats on low-salt diets, their bones and muscles fail to grow as fast as they normally would,” Martin Zaraska reports. “In one of his experiments, Leshem found that children in general reach for more salt than adults do–independent of calorie intake–which may be explained by the needs of their growing bodies.”
This is yet another reason why we should prevent drastic reductions in sodium in school meals.
A tragic example of a misguided zealotry to limit salt intake in a young patient lead to his death. Zaraska reports:
In 1940 the case of a little boy was described in the Journal of the American Medical Association. From the time he was a year old, the boy would go out of his way to eat massive amounts of salt. When he started speaking, one of his first words was “salt.” During a hospital stay (unrelated to his dietary habits), he was put on a low-sodium diet. To prevent him from sneaking around the hospital and stealing salt, he was strapped to his bed. He soon died. The reason? Due to severe and undiagnosed cortico-adrenal insufficiency, his kidneys were unable to retain sodium. Only eating huge amounts of salt had kept the boy alive.