Contact information
Research groups
Rachel Pechey
PhD
Associate Professor
Behavioural scientist focused on healthier, sustainable and equitable food purchasing and consumption
I lead the Food Purchasing theme in the Sustainable Healthy Food Group. My research interests include exploring the effectiveness of different interventions that alter aspects of the physical micro-environment (also known as 'choice architecture' or nudges) to improve the healthiness and sustainability of diets. I am interested in understanding the mechanisms underlying the impact of such interventions, and their potential impact on health inequalities.
I am currently working on a Wellcome Trust & Royal Society Sir Henry Dale Fellowship, which aims to establish the extent to which evidence from interventions to support healthier diets can inform interventions to create urgently needed sustainable diets. Evidence from interventions targeting unhealthy diets could help quickly narrow down our choice of interventions to increase sustainable food selections. However, we need to ensure that the effectiveness of interventions does not change when targeting sustainability. We also want to identify interventions that work for those in all socioeconomic positions, so these do not increase inequalities.
Key publications
Comparing the impact and mechanistic pathways of micro-environmental interventions targeting healthier vs. more environmentally sustainable food options: an overview of reviews
Journal article
Jostock C. et al, (2025), BMC Medicine, 23
Changing the availability and positioning of more vs. less environmentally sustainable products: A randomised controlled trial in an online experimental supermarket
Journal article
Jostock C. et al, (2024), Appetite, 200
Effects of environmental impact labels on the sustainability of food purchases: A randomised controlled trial in an experimental online supermarket
Journal article
Potter C. et al, (2024), PLoS ONE, 19
Impact of increasing the relative availability of meat-free options on food selection: two natural field experiments and an online randomised trial
Journal article
Pechey R. et al, (2022), International Journal of Behavioral Nutrition and Physical Activity, 19
Acceptability of policies to reduce consumption of red and processed meat: A population-based survey experiment
Journal article
Pechey R. et al, (2022), Journal of Environmental Psychology, 81
Changing the assortment of available food and drink for leaner, greener diets
Journal article
Marteau TM. et al, (2022), BMJ-BRITISH MEDICAL JOURNAL, 377
Socioeconomic inequalities in the healthiness of food choices: Exploring the contributions of food expenditures
Journal article
Pechey R. and Monsivais P., (2016), Preventive Medicine, 88, 203 - 209
Socioeconomic differences in purchases of more vs. less healthy foods and beverages: Analysis of over 25,000 British households in 2010
Journal article
Pechey R. et al, (2013), Social Science and Medicine, 92, 22 - 26
Recent publications
Does the range of ecolabels on offer alter their impact on meal selection? An online randomised control trial
Journal article
Biggs E. et al, (2026), BMC Public Health, 26
Does unmatching meat and plant-based meals change plant-based meal selection? An evaluation in an online hypothetical randomised trial.
Journal article
Garnett EE. et al, (2026), Appetite
Combining positioning and labelling interventions for healthier and more environmentally sustainable products: A randomised controlled trial in an online experimental supermarket
Journal article
Jostock C. et al, (2026), Appetite, 218
The case for mandatory reporting to enable targets for healthy and environmentally sustainable food: means, motive and opportunity.
Journal article
Pechey R. et al, (2026), BMC Med