Scientists from the Vanderbilt University and University of Alabama at Birmingham (UAB) in the US studied 33 individuals who were given an acute carbohydrate load in the form of a 264-kilo-calorie shake.
They studied the subjects' blood levels for six hours looking for a number of things, chief among them whether this acute metabolic challenge could alter the heart's production of atrial natriuretic peptide (ANP).
ANP is a hormone that helps the body get rid of excess salt and reduces blood pressure.
If a high dietary carbohydrate load suppresses circulating ANP concentrations, this would be a disadvantage to obese individuals who have lower ANP levels to begin with, researchers said.

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