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American Journal of Clinical Nutrition, Vol 44, 341-348, Copyright © 1986 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

High-carbohydrate diet: antinatriuretic and blood pressure response in normal men

HB Affarah, WD Hall, SB Heymsfield, M Kutner, JO Wells and EP Tuttle Jr

The hypothesis that high-carbohydrate feeding leads to increased insulin secretion, sodium retention, and elevation in blood pressure was examined in seven healthy men. A baseline 7-day balance study on low (13%) or high (52%) carbohydrate was followed by a 2-wk balance on the alternate diet and a 1-wk balance on the baseline diet. Results indicated that changing carbohydrate intake caused a rapid (2-3 day) inverse change in urinary sodium excretion and balance. By the second week, however, urinary-sodium level returned to baseline accompanied by an inverse change in plasma aldosterone. No significant rise in blood pressure was detected throughout the study. High-carbohydrate feeding promotes sodium retention in normal subjects, but the effect is counterregulated by a reduction in plasma aldosterone. A high- carbohydrate diet in healthy subjects does not cause a significant short-term increase in blood pressure.




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Copyright © 1986 by The American Society for Nutrition