Healthy Eating Quiz Linked to Significant Diet Quality Improvements in Australians

A new cohort study has linked the Healthy Eating Quiz (HEQ), an Australian online nutrition quiz, to small but significant improvements in diet quality. This research suggests that personalized feedback tools could contribute to addressing Australia's nutrition-related disease burden.

The study, published in Nutrition & Dietetics, tracked the eating habits of over 5,100 Australian adults who completed the HEQ, a free seven-minute diet quality assessment tool developed by University of Newcastle researchers.

Participants who completed the quiz at least twice over an average of 7.5 months showed an average improvement of 2.3 points on a 73-point diet quality scale. This change was statistically significant and consistent across various demographics.

Dr. Sasha Fenton, lead author and a Postdoctoral researcher with HMRI's Food & Nutrition Research Program, stated that even minor improvements in diet quality can have population-wide impacts, especially for those with lower initial diet quality.

About the Healthy Eating Quiz

The HEQ is an evidence-based online tool that measures diet variety and healthiness based on the Australian Dietary Guidelines. It calculates an Australian Recommended Food Score and provides automated, personalized feedback on improving eating patterns across different food groups. The quiz also links to resources for further support.

Unlike detailed food diaries, the HEQ is designed for quick completion and delivers immediate, tailored results and practical advice.

Key Findings

Non-vegetarians and individuals who reported eating most meals alone showed the greatest improvement in diet quality. These groups had lower baseline scores, indicating more potential for improvement.

Vegetarians, who generally had higher starting diet quality scores, showed less improvement, aligning with previous research on plant-based diets.

Study Limitations and Implications

The study acknowledges limitations, including reliance on self-reported data and self-selected participants, which may introduce bias. The quiz's current design does not differentiate between various plant-based diets like vegan or pescatarian.

Despite these limitations, the observed improvements are considered nutritionally and clinically relevant. Previous research indicates that improving diet quality over time is associated with reduced healthcare utilization and costs.

Researchers suggest that accessible online tools like the HEQ can complement broader public health initiatives aimed at improving diet quality and reducing non-communicable diseases, especially given that not everyone has regular access to a dietitian.