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THE EFFECT OF DIETARY SODIUM IN INFANCY ON BLOOD PRESSURE AND RELATED FACTORS: Studies of Infants Fed Salted and Unsalted Diets for Five Months at Eight Months and Eight Years of Age

The results of animal and epidemiological studies suggest commercially salted infant foods may predispose infants to hypertension. Testing this hypothesis, two groups of black male infants were fed identical foods with and without added salt for 5 months starting at 3 months of age. These diets, which provided 1.93±0.10 and 9.25±0.05 mEq Na/100 kcal, did not result in a significant difference in blood pressure at 8 months or 8 years of age. Blood pressure was significantly correlated with weight factors, particularly at 8 years, but not with Na intake, Na or Na/K excretion or plasma renin at 8 months.