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Hold the Salt! Effects of Sodium Information Provision, Sodium Content, and Hypertension on Perceived Cardiovascular Disease Risk and Purchase Intentions

Excessive sodium intake is a major cause of hypertension, a significant risk factor for several forms of cardiovascular disease, including coronary heart disease, stroke, and heart failure. Despite this finding, the average intake among Americans is 150% of the maximum recommended level. The goal of this research is to obtain greater consumer insight into this important public health issue. The authors analyze data from the National Health and Nutrition Examination Survey 2005–2006 and conduct two experiments using a nationwide panel of consumers. The results indicate that hypertension status has a significant effect on consumers’ attention to sodium on the Nutrition Facts panel (Study 1) and moderates the influence of sodium disclosure on perceived cardiovascular disease risk and purchase intentions for restaurant items (Study 2). In addition, the authors find that sodium level on a Nutrition Facts panel interacts with the provision of health-related sodium educational materials to influence disease risk perceptions and purchase intentions (Study 3). They offer potential implications of their findings for public policy makers, the public health community, and consumers.