Imperial College London


Faculty of MedicineSchool of Public Health

Research Associate







Reynolds BuildingCharing Cross Campus





Currently, I am working as a Research Associate in the Public Health Policy Evaluation Unit.

I have completed a NIHR School for Public Health funded PhD at Imperial. For this project, I used routinely collected data to evaluate the impact of the Healthy Start programme and the Universal Infant Free School Meal programme on purchasing, dietary and health outcomes. 

My research interests include policy evaluation, public health nutrition, nutrition welfare and school food policies, ultra-processed food and health inequalities. 



Parnham JC, McKevitt S, Vamos EP, et al., 2022, Evidence use in the UK's COVID-19 free school meals policy: a thematic content analysis, Policy Design and Practice, ISSN:2574-1292

Vrinten C, Parnham J, Hopkinson N, et al., 2022, Risk factors for adolescent smoking uptake – analysis of prospective data from the UK Millennium Cohort Study, Tobacco Induced Diseases, ISSN:1617-9625

Parnham J, Chang C-M, Rauber F, et al., 2022, The ultra-processed food content of school meals and packed lunches in the United Kingdom, Nutrients, Vol:14, ISSN:2072-6643, Pages:1-14

Haney E, Parnham JC, Chang K, et al., 2022, Dietary quality of school meals and packed lunches: a national study of primary and secondary schoolchildren in the UK, Public Health Nutrition, ISSN:1368-9800

Parnham JC, Chang K, Millett C, et al., 2022, The impact of the Universal Infant Free School Meal policy on dietary quality in English and Scottish primary school children: evaluation of a natural experiment, Nutrients, Vol:14, ISSN:2072-6643

More Publications