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Who we are

With research staff from more than 60 countries, and offices across the globe, IFPRI provides research-based policy solutions to sustainably reduce poverty and end hunger and malnutrition in developing countries.

Liangzhi You

Liangzhi You is a Senior Research Fellow and theme leader in the Foresight and Policy Modeling Unit, based in Washington, DC. His research focuses on climate resilience, spatial data and analytics, agroecosystems, and agricultural science policy. Gridded crop production data of the world (SPAM) and the agricultural technology evaluation model (DREAM) are among his research contributions. 

Where we work

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Where we work

IFPRI currently has more than 600 employees working in over 80 countries with a wide range of local, national, and international partners.

Unhealthy diets are a critical global concern while dietary measure methods are time-consuming and expensive. There is limited evidence that phone-based interventions can improve nutrition data collection and dietary quality, especially for adolescents in low- and middle-income countries.

The project involves an interdisciplinary collaboration between the International Food Policy Research Institute, Plant Village at Penn State University, the University of Ghana, the National Institute of Nutrition and the Thai Nguyen National Hospital in Vietnam.

The Plant Village Food Recognition Assistance and Nudging Insights (FRANI) is a new artificial intelligence (A.I.)-assisted mobile phone application that aims at closing that evidence gap by being able to recognize foods, track food-group consumption, provide diet-related statistics, and gamified nudges to improve food consumption.

In 2021 the Nudging for Good Project team validated FRANI for dietary assessment in adolescent girls in Ghana and Viet Nam against weighed records, the gold standard for dietary assessment, and the standard multi-pass 24 hour-recall method. Results show that using FRANI to measure daily nutrient intake performs equally well, and in many cases even better than the 24hr-recall. In addition to the validation study, two randomized pilot studies have assessed the feasibility of FRANI and its effects on food choices of adolescent girls in Ghana and Viet Nam.

This work was undertaken by the Nudging for Good Project team including contributions from: Noora Aberman, Gabriel Ador, Alejandra Arrieta, Vicentia Adatze, Boateng Bannerman, Bianca C. Braga, Frank Doyle, Gloria Folson, Rohit Gangupantulu, Aulo Gelli, Nga Thu Hoang, David Hughes, Phuong Nam Huynh, Naureen Karachiwalla, Annalyse Kehs, Bastien Koch, Pete McCloskey, Phuong H Nguyen, Giordano Palloni, Marie Ruel, Lan Mai Tran, Trang Huyen Tran, Duong Thuy Trương, Sawudatu Zakariah-Akoto, and Hoodies pte. ltd for software development.


Donors

Fondation Botnar
CGIAR Research Program on Agriculture for Nutrition and Health (A4NH) led by IFPRI
CGIAR Trust Fund

Team members

Aulo Gelli

Senior Research Fellow, Poverty,
Gender, and Inclusion

External Resources

External publications

Journal Article : Feasibility of using an Artificial Intelligence-based telephone application for dietary assessment and nudging to improve the quality of food choices of female adolescents in Vietnam: evidence from a randomized pilot study, https://doi.org/10.1016/j.cdnut.2023.102063