A recent study by the George Institute for Global Health has revealed that many food products in Australian supermarkets labeled as 'natural' or 'sustainable' are primarily using marketing terms rather than verified claims. Researchers assessed over 27,000 packaged foods sold at major retailers including Coles, Woolworths, Aldi, IGA, and Harris Farm markets in Sydney.
Key Findings
The study, published in Public Health Nutrition, found that nearly 40% of products carried some form of sustainability claim. However, the majority of these claims were self-declared by manufacturers without independent verification. Associate Professor Alexandra Jones, the institute's program lead for food governance, warned that this creates significant risks of greenwashing.
Researchers identified 69 different environmental claims, with 'natural' and 'vegan' being the most common. Many terms, such as 'sustainable' or 'natural', are so broad that they lack meaningful definition. 'There is no legal meaning of natural, but people associate it with being better for the environment or health,' Jones explained. 'However, many natural things, like sugar, are not necessarily healthy.'
Carbon Footprint Analysis
A second study by the same institute, published in Cleaner and Responsible Consumption, examined whether products with climate-related claims actually had lower emissions. While overall, such products had lower carbon footprints, in specific categories like meat and confectionery, products with environmental boasts had significantly higher emissions than unlabeled counterparts.
Lead author Mariel Keaney expressed concern: 'When carbon-friendly labels appear on some of the highest-emitting products, it is not just unhelpful but also misleading. Shoppers trying to reduce their environmental footprint deserve better.'
Consumer Confusion
Professor Natalina Zlatevska from the University of Technology Sydney noted that the multitude of claims and lack of clear definitions cause confusion. She advocated for universal standards, such as France's Eco-Score system, which provides a traffic light-style rating for environmental impact. 'Consumers need simple, color-coded information to make quick decisions in the supermarket,' she said.
Chandni Gupta, deputy chief executive of the Consumer Policy Research Centre, highlighted that about half of Australians consider sustainability when shopping, relying on labels for guidance. However, vague or unsubstantiated claims undermine trust. 'Clear, specific, and independently verified labels are essential,' she added.
Call for Regulation
Jones emphasized the need for regulatory action to ensure environmental claims are robust and verified. In the meantime, she advised consumers to focus on reducing meat intake and eating more fruits, vegetables, and legumes—categories known to be better for the environment—rather than scrutinizing individual product labels.
