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CompletedNCT05008653SNAPMeUpdated May 13, 2022

Surveying Nutrient Assessment With Photographs of Meals (SNAPMe) Study

An observational study in Food Characteristics, sponsored by University of California, Davis. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-05-13.

Sponsored by University of California, Davis · Observational

Study type
Observational
Model
Ecologic or community
Time perspective
Cross-sectional
Enrollment
110
Ages
18 Years to 65 Years
Sex
All
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Study summary

The SnapMe Study is a single-group, prospective study that requires healthy adults to maintain food diaries in order to develop benchmark data for the prediction of food characteristics.

Read the detailed description

The purpose of this study is to develop a method that uses photography to accurately calculate the types and amounts of nutrients in meals that are consumed by healthy participants, thereby replacing the use of electronic food records. Researchers expect about 100 healthy individuals at UC Davis and around the U.S. will join to participate in this research. Participation in this study will involve taking pictures of every meal and snack the individual consumes using a smartphone for 3 days (2 weekdays, 1 weekend day) and uploading the images to a mobile phone application called Bitesnap. In addition, the participant will be asked to complete online food records on the same days using the Automated Self-Administered 24-hour Dietary Assessment Tool (ASA24-2020). Each participant will have 4 weeks to complete the study. The study website can be viewed here: https://snapme.ucdavis.edu/

02

Conditions studied

  • Food Characteristics

Keywords

  • Artificial intelligence
  • Dietary records
  • Food systems
  • Computer science
  • Sustainability
  • Nutrition
03

In context

Lead sponsor

University of California, Davis is the lead sponsor of 798 studies on the registry; 146 are open to participants now.

Of its 65 completed or terminated interventional studies of FDA-regulated products, 43 (66%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Healthy adults living anywhere in the United States of America between the ages of 18 and 65.

Inclusion criteria

  1. Healthy adults
  2. Has a social security number or Tax ID
  3. Age 18-65 years of age
  4. Lives anywhere in the United States of America
  5. Has been weight-stable (has not lost or gained 10% of body weight) within the past 3 months
  6. Currently owns a smart phone (Android or iPhone)
  7. Has owned and used a smart phone for at least 12 months
  8. Consumes at least 3 meals per day
  9. Consumes at least 50% of meals that are prepared at/from home vs. outside the home (dine-in restaurants, take-out, etc.)
  10. Prepares at least 50% of the prepared meals within their household
  11. Willingness to refrain from participating in any experimental trials during this study period
  12. Willingness to refrain from having any non-emergency, elective surgeries during the study period
  13. Willingness to eat different/variety of foods for each meal over the three days of dietary record collection
  14. Willingness to refrain from consuming meal substitution items (examples: Slimfast shake, Soylent, meal replacement bars) over the three days of dietary record collection
  15. Willingness to download and use an app linked to their smart phone's camera and photo storage
  16. Willingness to spend 1-2 hours per day on each of the three study days to: 1)enter detailed information about each meal they consume using an online record system and an app on their smart phone and 2) take and upload photos of their meals on their smart phone
  17. Willingness to refrain from sharing meals with other participants during data collection
  18. Passes a food matching test on the online screening survey with score >70%.

Exclusion criteria

Exclusion Criteria:

  1. Currently pregnant or plans to become pregnant several weeks prior to enrollment and during the study period
  2. History of any type of eating disorder (anorexia nervosa, bulimia, etc.)
  3. Use of restrictive diets such as caloric restriction or intermittent fasting of more than 12 hours that has resulted in weight loss greater than 10% of their body weight within the past 3months ordiets
  4. Anyone the investigator feels is not an applicable participant.
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Study design

Observational model
Ecologic or community
Time perspective
Cross-sectional
Enrollment
110 participants (actual)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. Primary Study Endpoint

    Construct a library with thousands of meals and snacks and images of these meals and snacks.

    Time frame: 3 days

07

Study locations

1 site
  • University of California, Davis
    Davis, California 95616, United States
08

References and documents

Publications

  • McCullough ML. Dietary assessment in the digital age: the ongoing quest for better methods. Am J Clin Nutr. 2018 Jan 1;107(1):1-2. doi: 10.1093/ajcn/nqx066. No abstract available. PubMed 29381804 ↗
  • Timon CM, van den Barg R, Blain RJ, Kehoe L, Evans K, Walton J, Flynn A, Gibney ER. A review of the design and validation of web- and computer-based 24-h dietary recall tools. Nutr Res Rev. 2016 Dec;29(2):268-280. doi: 10.1017/S0954422416000172. PubMed 27955721 ↗
  • Subar AF, Kipnis V, Troiano RP, Midthune D, Schoeller DA, Bingham S, Sharbaugh CO, Trabulsi J, Runswick S, Ballard-Barbash R, Sunshine J, Schatzkin A. Using intake biomarkers to evaluate the extent of dietary misreporting in a large sample of adults: the OPEN study. Am J Epidemiol. 2003 Jul 1;158(1):1-13. doi: 10.1093/aje/kwg092. PubMed 12835280 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 13, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05008653
Lead sponsor
University of California, Davis
Collaborators
United States Department of Agriculture (USDA)
Responsible party
Sponsor
First posted
Aug 17, 2021
Start date
Sep 1, 2021
Primary completion
Jan 28, 2022
Completion
Jan 29, 2022
Last update
May 13, 2022

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in May 2022. You cannot join it, but the record below documents what was studied.

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