been used extensively to describe patterns of nutrition and health in the U.S. The results from this current study are consistent with findings reported previously from two earlier NHANES surveys. While the federal government currently repeats NHANES surveys every two years, NHANES III is the latest available survey that can be compared with later death records.
Since NHANES III was an observational study and not a clinical trial, no definite conclusions about cause and effect were possible, says Dr. Cohen. However, our findings do again raise questions about the usefulness or evensafety of universal recommendations for lower salt diets for all individuals, regardless of their blood pressure status or other health characteristics, he cautions.
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