CSIRO will use data from the country’s largest diet survey, the Healthy Diet Score, to look at the role food consumption contributes to our environmental footprint, as well as providing people with a score indicating the nutritional quality of their eating habits.
Improving the national diet can achieve both health benefits and environmental benefits, such as minimising harmful greenhouse gases via reducing processing, packaging and transport requirements.
CSIRO research has found that reducing overconsumption of kilojoules and eating whole foods at the levels recommended in the National Dietary Guidelines could cut the greenhouse gas contribution of the average diet by 25 per cent.
The survey evaluates diet based on food variety, frequency and quantity of the essential food groups, as well as other attributes to calculate greenhouse gas emissions related to food consumption.
This is the first year that the Healthy Diet Score will use survey data to measure the broader environmental impact of poor eating and the findings will be released later this year.
Professor Manny Noakes, CSIRO Research Director for Nutrition and Health and the co-author of the CSIRO Total Wellbeing Diet, said the impact of poor eating habits reaches further than just an individual’s waistline.
“Obesity and poor nutrition habits negatively affects the broader community,” Professor Noakes said.
“This year’s Healthy Diet Score will help us better qualify the environmental footprint from individuals eating habits.
In addition to overeating kilojoules, the CSIRO estimates that junk food is one of the highest contributors to food related greenhouse gas emissions, accounting for up to 27 per cent of the 14.5 kilograms of diet-related greenhouse gas emissions produced by the average Australian each day.
Last year the country’s diet quality was given a rating of 61/100 using the scientifically validated survey which assesses people’s diet quality against the Australian Dietary Guidelines.
Australia’s underwhelming performance in last year’s Healthy Diet Score was driven by the country’s addiction to junk food.
The 2015 survey found that junk food intake was three-times higher than the recommended daily limit.
The CSIRO Healthy Diet Score is a free 10-minute online assessment which evaluates diet quality and identifies areas of improvement and gives your diet a score out of 100.