consumer products
The Meal Photo Missed Hundreds of Calories
Four image-based food-logging apps systematically underestimated the energy and fat in standardized meals during a preliminary comparison.
Summary
Four image-based food-logging apps systematically underestimated the energy and fat in standardized meals during a preliminary comparison.
Researchers photographed 102 precisely measured meals and submitted the images to four consumer calorie-tracking apps. The apps underestimated energy by roughly 250 to 345 calories per meal on average and missed about 30 grams of fat; a larger follow-up set exceeded 200 meals. The findings are preliminary conference results and do not establish how every app performs in ordinary use. The generic code image is illustrative and does not show an evaluated application.
Why it matters
Four image-based food-logging apps systematically underestimated the energy and fat in standardized meals during a preliminary comparison.
Limits and context
- The findings are preliminary conference results and do not establish how every app performs in ordinary use.
- The generic code image is illustrative and does not show an evaluated application.
Key claims
Four image-based food-logging apps systematically underestimated the energy and fat in standardized meals during a preliminary comparison.
Qualification: The findings are preliminary conference results and do not establish how every app performs in ordinary use.
Evidence: source-2026-07-26-012
Sources
- Medical Xpress: Photo-based calorie tracking app comparisonMedical Xpress · secondary reporting
Corrections
No corrections have been recorded for this story.