The amounts of sodium, potassium, phosphorus, and nitrogen in several brands of milk used for infant feeding have been measured, and the concentrations of these substances in the reconstituted milks calculated. The known variation in the electrolyte content of cows' milk and the addition of minerals in the manufacture of many types of milk foods may account for the variation in the content of these substances, but the addition of neutralized whey in the manufacture of Trufood Formula 4 increased the concentration of sodium to a level twice that found in undiluted cows' milk. We think that details of all mineral additions to milks used for infant feeding should be made readily available and that the mineral content of the powders or liquids should be printed on the containers and expressed both in mg/100 g and mEq/kg. Milks reconstituted to a composition close to that of cows' milk present large osmotic loads to the kidneys, and may endanger water balance in some circumstances. This risk can be reduced by a greater dilution with water.
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机译：已测量了用于婴儿喂养的几种品牌牛奶中的钠，钾，磷和氮的含量，并计算了重构奶中这些物质的浓度。牛奶中电解质含量的已知变化以及在制造多种类型的牛奶食品中添加矿物质的原因可能是这些物质含量变化的原因，但是在Trufood Formula 4生产中添加了中和的乳清将钠的浓度增加到未稀释牛奶中的两倍。我们认为，应为婴儿喂养的牛奶中添加的所有矿物质的详细信息应易于获取，粉状或液体状的矿物质含量应印刷在容器上，并以mg / 100 g和mEq / kg表示。重组后的牛奶组成接近于牛奶，对肾脏的渗透作用很大，在某些情况下可能危害水平衡。用水稀释可以降低这种风险。
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