Researchers at the US Department of Agriculture (USDA) Human Nutrition Research Centre on Ageing at Tufts University show little change in fast food portion sizes and product formulation between 1996 and 2013.
They analysed the calorie, sodium, saturated fat and trans fat content of popular menu items served at three national fast-food chains between 1996 and 2013.
Researchers found that average calories, sodium, and saturated fat stayed relatively constant, albeit at high levels.
The exception was a consistent decline in the trans fat of fries.
"Our analysis indicates relative consistency in the quantities of calories, saturated fat, and sodium. However, the variability among chains is considerable and the levels are high for most of the individual menu items assessed, particularly for items frequently sold together as a meal, pushing the limits of what we should be eating to maintain a healthy weight and sodium intake," said Lichtenstein.
According to data, calorie content of the cheeseburger meal among the three chains represented 65 per cent to 80 per cent of a 2,000 calorie per day diet and sodium content represented 63 per cent to 91 per cent of the recommendation.
Lichtenstein and colleagues focused on the four most popular menu items: fries, cheeseburgers, grilled chicken sandwiches, and regular cola, looking for trends in portion size and nutrient content over an 18 year period.
They found only small fluctuations in calorie content and the amount of saturated fat and sodium. The notable exception was fries, which decreased first in saturated fat in 2001 and then trans fat, likely due to changes to the frying fat.
The research was published in the journal Preventing Chronic Disease.
You’ve reached your limit of 5 free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Access to Exclusive Premium Stories
Over 30 subscriber-only stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app