Should food labels tell us how much exercise is needed to burn off the calories?

Publicly released:
International
example of PACE labelling
example of PACE labelling

UK scientists say food labelling that includes the amount of physical activity required to burn off the calories within would be easier to understand than existing labelling and may be a more effective way to help consumers avoid unhealthy choices. They asked 2,668 people to compare the established UK 'traffic light' system of labelling and the new 'physical activity calorie equivalent' (PACE) labelling, asking them which they preferred, which was easier to understand, which caught their attention the most, and which was more likely to help them avoid high-calorie foods. Overall, slightly more participants preferred existing traffic light to PACE labelling, but more participants found PACE easier to understand and felt it was more likely to catch their attention. The next step is to test PACE labelling in the real world to see if it helps shoppers make healthier choices, the scientists say.

Media release

From: International Congress on Obesity (ICO)

Food labelling should show how much physical activity is needed to burn off the calories, not only the number of calories

New research from the UK to be presented at this year’s International Congress on Obesity (Melbourne, 18-22 October) shows that food labelling that includes the amount of physical activity needed to burn off the calories contained within it would be easier to understand than existing traffic light labelling, and would be more likely to help consumers to avoid high calorie foods. The study is by Professor Amanda Daley, Professor of Behavioural Medicine at Loughborough University, UK, and colleagues.

This so-called physical activity calorie equivalent (PACE) labelling was also found to be more popular among people aged under 65 years and those who are more physically active during a typical week, found the authors.

Nutritional labels support people to make food choices and traffic light labelling is the UK standard. However, many people do not understand the meaning of kilocalories (kcals or calories) or grams of fat displayed on food labels, and often underestimate the number of calories when labelling is not provided,” explains Professor Daley.

PACE provides another approach to nutrition labelling by providing calorie information with a meaningful interpretation of what the calorie content of the food means in terms of energy expenditure. It aims to illustrate how many minutes of physical activity are equivalent to the calories contained in food and drinks. For example: “calories in this cake requires 90 minutes of walking to burn off.” - see examples in the link below. Some mobile phone apps for nutrition already incorporate PACE information.*

The authors explain that while there is some evidence that PACE labelling may be effective** in reducing calorie consumption, there is a lack of evidence about the views of the public concerning potential implementation in food settings. This new study obtained data from a nationally representative sample of adults recruited via the UK Ipsos KnowledgePanel.***

The KnowledgePanel contained 14,016 panellists and 4000 were randomly invited to participate. The sample was stratified by education, region, ethnicity, deprivation, urbanity of home, age and gender. Participants were asked to compare their views about traffic light and PACE labelling regarding which they preferred, found easier to understand, caught their attention the most, and more likely to help them avoid high calorie foods.

A total of 2668 (67%) of those invited participated. Overall, slightly more participants preferred existing traffic light (43% vs. 33%) to PACE labelling. However, more participants reported PACE was easier to understand (41% vs 27%) and more likely to catch their attention (49% vs 31%).

Respondents who were physically active at least 3–4 times per week and 5 or more times per week were 42% and 45% more likely, respectively, to report PACE would catch their attention more than traffic light labelling, compared with participants who were active 0–2 times per week.

More participants thought PACE was more likely to help them avoid high calorie food than traffic light labelling (44% vs 28%). Those aged 65 years and older were 40% less likely to prefer PACE over traffic light labelling compared with the youngest group (18-44 years).

There was a preference for PACE labelling to be placed on discretionary foods, for example chocolate and cakes, rather than ‘every day’ food items like bread, pasta, fruit and vegetables, and a preference for PACE to be displayed in fast food outlets, supermarkets, takeaway/online menus and vending machines, all locations that typically sell high energy dense food and drinks.

The authors conclude: “Our findings highlight that PACE labelling is a potentially important policy-based approach to strengthen current approaches to food labelling. The next steps are to test whether PACE labelling reduces the purchases of high calorie foods and drinks in different food settings such as restaurants, vending machines, coffee shops and pubs.”

Professor Daley’s team is about to begin trials of PACE labelling in cafeteria and vending machine settings.

For examples of traffic light and PACE labelling click here

*https://www.myfooddiary.com/foods/811345/pace-mild-chunky-salsa

https://www.myfitnesspal.com/exercise/lookup

**Daley AJ, McGee E, Bayliss S, Coombe A, Parretti HM. Effects of physical activity calorie equivalent food labelling to reduce food selection and consumption: systematic review and meta-analysis of randomised controlled studies. J Epidemiol Community Health. 2020 Mar;74(3):269-275; for full paper click here

Another overview paper in the journal Preventive Medicine can be found here

***https://www.ipsos.com/en-uk/uk-knowledgepanel

Attachments

Note: Not all attachments are visible to the general public. Research URLs will go live after the embargo ends.

Other International Congress on Obesity, Web page Conference website
Journal/
conference:
International Congress on Obesity
Organisation/s: Loughborough University, UK
Funder: No information provided.
Media Contact/s
Contact details are only visible to registered journalists.