Measuring food intake with digital photography
Version of Record online: 15 JUL 2013
© 2013 The British Dietetic Association Ltd.
Journal of Human Nutrition and Dietetics
Special Issue: Developing technological solutions for dietary assessment in children and young people. Guest Editors: Ashley J. Adamson and Tom Baranowski. The British Dietetic Association and Wiley have published this supplement without financial support.
Volume 27, Issue Supplement s1, pages 72–81, January 2014
How to Cite
2014) Measuring food intake with digital photography. J Hum Nutr Diet. 27, (suppl. 1) 72–81. doi: 10.1111/jhn.12014, , , , & (
- Issue online: 23 JAN 2014
- Version of Record online: 15 JUL 2013
- National Institutes of Health. Grant Numbers: R21 AG032231, K23 DK068052
- United States Department of Defense
- NORC Center Grant. Grant Number: 1P30 DK072476
- USDA – Agricultural Research Service
- dietary assessment digital photography;
- energy intake;
- food intake;
- food photography;
The Digital Photography of Foods Method accurately estimates the food intake of adults and children in cafeterias. When using this method, images of food selection and leftovers are quickly captured in the cafeteria. These images are later compared with images of ‘standard’ portions of food using computer software. The amount of food selected and discarded is estimated based upon this comparison, and the application automatically calculates energy and nutrient intake. In the present review, we describe this method, as well as a related method called the Remote Food Photography Method (RFPM), which relies on smartphones to estimate food intake in near real-time in free-living conditions. When using the RFPM, participants capture images of food selection and leftovers using a smartphone and these images are wirelessly transmitted in near real-time to a server for analysis. Because data are transferred and analysed in near real-time, the RFPM provides a platform for participants to quickly receive feedback about their food intake behaviour and to receive dietary recommendations for achieving weight loss and health promotion goals. The reliability and validity of measuring food intake with the RFPM in adults and children is also reviewed. In sum, the body of research reviewed demonstrates that digital imaging accurately estimates food intake in many environments and it has many advantages over other methods, including reduced participant burden, elimination of the need for participants to estimate portion size, and the incorporation of computer automation to improve the accuracy, efficiency and cost-effectiveness of the method.