Surveying Nutrient Assessment With Photographs of Meals (SNAPMe) Study (SNAPMe)

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.

Study Overview

• Status: Completed
• Conditions: Food Characteristics

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/

• Study Type: Observational
• Enrollment (Actual): 110

Contacts and Locations

Study Locations

• United States
  • California
    • Davis, California, United States, 95616
      • University of California, Davis

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 65 years (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

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

Description

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:

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.

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Primary Study Endpoint	Construct a library with thousands of meals and snacks and images of these meals and snacks.	3 days

Collaborators and Investigators

• Sponsor: University of California, Davis
• Collaborators: United States Department of Agriculture (USDA)

Publications and helpful links

General Publications

• 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.
• 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.
• 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.

Study record dates

Study Major Dates

• Study Start (Actual): September 1, 2021
• Primary Completion (Actual): January 28, 2022
• Study Completion (Actual): January 29, 2022

Study Registration Dates

• First Submitted: June 28, 2021
• First Submitted That Met QC Criteria: August 9, 2021
• First Posted (Actual): August 17, 2021

Study Record Updates

• Last Update Posted (Actual): May 13, 2022
• Last Update Submitted That Met QC Criteria: May 12, 2022
• Last Verified: May 1, 2022

More Information

Terms related to this study

• Keywords: Nutrition; Artificial intelligence; Sustainability; Dietary records; Food systems; Computer science
• Other Study ID Numbers: 1730621

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No