To examine whether different message frames increase public support for a community-identified policy solution to improve food security in remote Aboriginal and Torres Strait Islander communities in Australia.

An online experimental study in which participants were randomly assigned to one of three message frames: human rights, fairness or community-identified solution or a control condition. Logistic regression models were used to assess associations between message frames and support for an electricity subsidy policy. Interaction analyses explored whether participant characteristics moderated these effects.

Australia.

A nationally representative sample of 1555 Australian adults recruited through an online panel.

Message framing had limited overall impact on policy support. The human rights frame generated the highest support for the proposed subsidy, while the fairness frame generated the lowest; however, these differences were modest. We found that regardless of frame used, Greens supporters, those with postgraduate degrees or those who watched the news more frequently, tended to have higher levels of agreement with the policy solution.

Although message framing is widely used in advocacy to increase policy support, its impact in this context appears constrained. These findings underscore the complexity of shifting public attitudes toward policies benefiting structurally disadvantaged communities and suggest that more targeted, audience-specific framing may be necessary. Further research should explore why certain frames underperform among particular groups and examine how agreement and emotional engagement jointly shape support for policy change.

High-quality diets, characterised by nutrient-rich foods, are one of the foundations for health and well-being. Indicators of diet quality, antioxidants, are associated with protection against cardiometabolic diseases. The current study explores relationships between plasma antioxidants and cardiometabolic risk among Aboriginal people in Australia.

As part of a community-driven health promotion programme, we conducted a cross-sectional study including a health-behaviour questionnaire, plasma antioxidants and cardiometabolic risk markers (anthropometric, blood pressure measurements, fasting glucose, glycated Hb (HbA1c), lipids, C-reactive protein and albumin-creatinine-ratio) continuous and categorised into population-specific cut-offs. Antioxidants (β-carotene, β-cryptoxanthin, lycopene, lutein-zeaxanthin, retinol and α-tocopherol measured using HPLC) were applied to a principal component analysis, which aggregated these into a single component. Linear regression models were applied to investigate associations between the antioxidant component and cardiometabolic risk markers.

Community in a remote area in Northern Territory, Australia.

A total of 324 Aboriginal people, mean age 35·5 (range 15–75) years.

Antioxidant component levels were higher among individuals with higher self-reported vegetable intake (P < 0·01), higher among individuals with higher self-reported fruit intake (P = 0·05) and lower among current smokers (P = 0·06). Linear regression revealed an inverse association between the antioxidant component and C-reactive protein (β = –0·01, P < 0·01) after adjusting for confounders.

Higher plasma antioxidant levels, indicators of diet quality, were associated with lower levels of high-sensitivity C-reactive protein in this Aboriginal population in remote Australia. This association suggests plasma antioxidants may be protective against inflammation; however, longitudinal studies are needed to examine this potentially protective relationship.

To consider the plausible nutritional impacts of fluctuations in money availability within an income cycle for remote Indigenous Australians.

Community-level dietary intake (energy, micro/macronutrients) and expenditure on foods and beverages (F&B) were estimated over one year for three remote Indigenous Australian communities (Northern Territory, Australia) using monthly F&B transaction data. F&B that were likely to be consumed during a period within an income cycle when money was relatively limited (low money period (LMP) foods) were identified by panel consensus and scenario modelling was conducted to simulate the nutritional outcomes of a range of F&B selection responses to having an LMP.

All scenarios resulted in reduced diet quality during the LMP relative to overall average diet values. Protein and fat energy percentages were reduced and carbohydrate energy percentage increased. Despite reduced expenditure, declines in energy intake were typically buffered due to the reduced energy cost ($AU/MJ) of the LMP diet. The micronutrient profile of the LMP diet was substantially poorer, such that additional key micronutrients dropped below population-weighted Estimated Average Requirements/Adequate Intakes.

The modelling undertaken herein suggests that even a short period of low money within an income cycle may noticeably contribute to the reduced diet quality of remote Indigenous Australians and exacerbate lifestyle disease risk. Dietary strategies that are designed to respond to diets and expenditure during different income cycle periods, rather than the overall average diet and expenditure, should be considered for improving diet quality and reducing cardiometabolic disease risk in remote Indigenous Australians.