Despite the commonly held belief that sodium consumption has skyrocketed in the last 20 years and the decades of public education efforts warning Americans about adverse health risks associated with consuming high sodium diets, levels have remained virtually unchanged since 1957, according to a new study by Harvard University.

Thirty-eight, 24-hour urine sodium excretion studies, published between 1957 and 2003, were analyzed by a multivariate random-effects model. Sodium excretions were found to be unchanged throughout the study years. In the last 50 years, Americans were found to consistently consume 3526 mg of sodium/day. Researchers did note that sodium levels exceeded the recommended sodium intake levels of 2,300 mg/day for adults and 1,500 mg/day for those who are at risk or have high blood pressure.

To read the entire study, link here.