Validating the use of photos to measure dietary intake: the method used by DialBetics, a smartphone-based self-management system for diabetes patients.

ABSTRACT:

Background

The accuracy of estimating nutritional intake and balance from photos of meals has not been well documented. However, DialBetics (DB)-our diabetes self-management support system, which is based on information and communication technologies-relies on the photos that type 2 diabetes patients take of their meals with smartphones. Therefore, we designed a study to evaluate this accuracy.

Methods

We prepared 61 dishes whose actual amount/value of total energy and each nutrient were known: protein, fat, carbohydrates, dietary fiber and salt. Their balance-the protein-fat-carbohydrate ratio-was also known, constituting the weighed food record (WFR). Smartphone photos of those dishes were taken, and three registered dietitians evaluated each dish from those photos, naming

SUBMITTER: Kato S 

PROVIDER: S-EPMC6224981 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature