Work

An investigation of the change in alignment between the Health Star Rating Scheme and the Nova Food Processing Classification System and the Australian Dietary Guidelines

Year: 2026

Type: article

Abstract: OBJECTIVE: Front-of-package labelling informs consumers about the 'healthiness' of foods based on different classification schemes. These schemes reflect competing worldviews for assessing a food's healthiness, represented by nutrient-, food- or diet-based indices. The Health Star Rating scheme (HSR) has been criticised for failing to appropriately score unhealthy products. Updates to the HSR algorithm were implemented over a two-year period from November 2020. This study investigated alignment between a nutrient-based scheme (HSR), food-based scheme (Nova food processing system) and diet-based scheme (Australian Dietary Guidelines (ADG)). SETTING: Mintel Global New Products Database. PARTICIPANTS: Retail foods displaying HSR launched or updated onto the Australian market between November 2020 and June 2023. DESIGN: Products were categorised according to the ADG and Nova, descriptive statistics performed for each category and proportion displaying HSR ≤ 2·0 and ≥ 2·5 calculated for discretionary foods, five food group foods, ultra-processed foods (UPF) and non-UPF. Agreement between categories obtained by Kappa. RESULTS: Median HSR for UPF and discretionary foods were 3·5 and 2·5, respectively, and 73·7 % of UPF and 58·2 % of discretionary foods displayed HSR ≥ 2·5. Agreement between HSR and Nova was none to slight (k = 0·09, P < 0·001) and HSR and ADG was fair (k = 0·38, P < 0·001). Between 2020-2023, the proportion of UPF displaying HSR ≥ 2·5 increased from 60·2 % to 78·5 % and for discretionary foods 47·0 % to 62·5 %. CONCLUSION: The HSR algorithm calculates 'healthy' HSR (≥ 2·5) for a high proportion of UPF and discretionary foods. The HSR's nutrient-based approach to translate food-and diet-based nutrition recommendations into accurate food 'healthiness' assessments is still problematic.

Source: Public Health Nutrition

DOI: 10.1017/s1368980026102419

Authors: Sandra Brastein, Julie Woods, Sarah Dickie, Mark Andrew Lawrence

Institutions: Deakin University, Monash University

Language: English

Topic: Consumer Attitudes and Food Labeling

Subfield: Public Health, Environmental and Occupational Health

Field: Medicine

Domain: Health Sciences

SDGs: Good health and well-being, Zero hunger

Open Access status: gold

Estimated APC paid: $3,550