Retail prices, environmental footprints, and nutritional profiles of commonly sold retail food items in 181 countries
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View abstract on PubMed
Summary
This summary is machine-generated.Healthier, sustainable diets may not be more expensive. Lower-priced foods within food groups often have smaller environmental footprints, challenging assumptions about diet costs.
Area Of Science
- Environmental Science
- Nutritional Science
- Agricultural Economics
Background
- Shifting to healthier, sustainable diets requires significant changes in food consumption.
- Dietary costs and affordability are major obstacles to adopting healthy and sustainable eating patterns.
Purpose Of The Study
- To investigate the global relationship between retail food prices, environmental footprints (carbon and water), and nutritional profiles.
- To determine if healthier and more sustainable foods are consistently more expensive across and within food categories.
Main Methods
- Analysis of 48,316 retail food prices from 860 items in 181 countries (2011, 2017).
- Matching food prices with estimated carbon and water footprints and nutritional data.
- Testing price-sustainability and price-nutrition gradients within and between food groups.
Main Results
- Significant variations exist in prices, environmental footprints, and nutritional profiles across food groups.
- Higher-priced foods generally exhibit larger carbon and water footprints, particularly animal-source foods.
- The relationship between price and nutritional profile is inconsistent; more expensive foods are not always healthier.
Conclusions
- Contrary to expectations, higher-priced foods do not necessarily correlate with greater sustainability.
- Choosing lower-priced options within food groups can facilitate meeting dietary needs with reduced environmental impact.
- Resource-intensive production (energy, water) often characterizes higher-priced foods, irrespective of their healthfulness.
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