Have you ever noticed calorie labels on menus and wondered if they actually make a difference? The idea is simple—help people make healthier choices by giving them the information upfront. Some people swear by them, while others barely give them a second glance. So, do they really work?
This question became even more relevant when, in 2022, big cafes, restaurants, and fast-food chains in England were required to include calorie counts on their menus. The move is part of a broader effort to combat obesity, which impacts 26.2% of adults. Frequent dining out has been linked to obesity, which can lead to serious health issues like type 2 diabetes, heart disease, and even some cancers. The goal is to help customers make healthier choices by showing how many calories are in their meals.
Following this policy, researchers found it didn’t work quite as hoped. Despite calorie labels on menus, the amount people bought and ate stayed about the same. A study from the University of Liverpool showed little change in calorie intake across different groups, no matter their age, gender, ethnicity, and education level. It seems labels alone aren’t enough to shift eating habits.
In the U.S., calorie labeling has been in place since May 2018, and it turns out, it had some small positive results. A 2021 study published in the Public Library of Science examined meal purchases in Louisiana, Mississippi, and Texas before and after labeling started and found the average meal had 73 fewer calories—a 4.7% drop.
An interesting finding from a 2021 study in the Journal of the American Medical Association is that restaurants and coffee shops started cutting calories when adding new menu items. On average, the new dishes introduced after the regulation had 25% fewer calories—that’s about 100 fewer calories per item. At fast-food chains, the drop was even bigger, with around 180 fewer calories per item.
Supermarkets also began adding calorie labels to prepared foods back in 2018, and it led to some interesting changes. According to another study, most items like entrees and deli meats didn’t see much of a calorie drop. But new bakery items had about 440 fewer calories each, though they were smaller, and it’s unclear if people just bought more.
What’s even more interesting is that current labeling rules allow for a margin of error when it comes to calorie counts. Things like different ingredients, how food is prepared, or even serving sizes can throw off the numbers. This means you could be eating more calories than you think, which can make it harder to stick to a balanced diet or hit your health goals.
We’re often taught that “a calorie is a calorie,” implying it doesn’t matter if you eat 100 calories of candy or broccoli—they’ll have the same effect on your weight and health. Sure, a calorie technically has the same amount of energy (4,184 joules), but your body doesn’t treat all calories equally. Different foods are processed in different ways, and some can cause energy to be lost as heat.
More importantly, the foods you eat affect your hormones and brain, which control hunger and how much you eat. What you eat matters just as much—if not more—than how many calories you consume.
So, do menu calorie labels really make a difference? They might help a little, but they’re not a magic fix for healthier eating. At the end of the day, focusing on the quality of your food and listening to your body is just as important as the numbers on a menu.
