In this report of the Council on Foods and Nutrition of the A.M.A., two pediatricians review the information available concerning requirements of nutrients during hot weather as well as the requirements for sodium chloride and water. Hot weather does not impose any special dietary requirements other than increased needs for salt and water. The intake of sodium and chloride in the usual diets of healthy infants appears to be adequate to meet any increased need imposed by hot weather. An adequate intake of water for infants can be assured by regular provision of a few ounces of water between feedings. In older children water rather than other beverages should be used to quench thirst. Excessive consumption of high caloric beverages may impair the appetite for proper food. If an infant or a child on a usual diet appears to stuffer from heat stress, consideration should be given to the presence of an illness such as cystic fibrosis of the pancreas, adrenal insufficiency, renal disease or diarrhea.

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