After analyzing receipts and survey responses from thousands of consumers at four fast-food restaurant chains in New York City, New York University School of Medicine researchers found no statistically significant reduction over time in the calorie or nutrition content of the foods they purchased, nor did consumers visit the restaurants less.

“There’s definitely a subset of people who see and use this information, but we’re not seeing any changes at the population level,” researcher Jonathan Cantor told the Washington Examiner.

The study has importance nationally, because President Obama’s Affordable Care Act requires chain restaurants, eateries in grocery stores, bakeries and coffee shops to post calorie counts for menu items. For several years, the Food and Drug Administration has delayed the rule, which is now scheduled to take effect one month after the 2016 presidential election.