Recruiting

Diet Quality

Sponsor:

UCLA

Code:

NCT07780708

Conditions

None Volunteer

Eligibility Criteria

Sex: All

Age: 60+

Healthy Volunteers: Accepted

Study Details

Brief summary:

The goal of this observational study is to learn about dietary quality and barriers to healthy eating among older adults who participate in the Los Angeles County Food Rx Produce Distribution Program. The study will also evaluate whether a newer dietary assessment tool, the Global Diet Quality Questionnaire (GDQQ), performs similarly to an established dietary assessment tool, the Mediterranean Diet Scale (PREDIMED MDS), in measuring diet quality among adults aged 60 years and older.

The main questions it aims to answer are:

  • Is the GDQQ associated with diet quality scores measured by the PREDIMED Mediterranean Diet Scale?
  • Does the GDQQ predict self-reported body mass index (BMI) as well as or better than the PREDIMED Mediterranean Diet Scale?
  • What barriers and facilitators influence healthy eating and participation in produce distribution programs among older adults?

Participants will:

  • Complete questionnaires about their dietary habits, demographic characteristics, and food access experiences.
  • Complete two dietary quality assessment tools: the PREDIMED Mediterranean Diet Scale and the Global Diet Quality Questionnaire.
  • If randomly selected, participate in a one-time semi-structured interview to discuss healthy eating, food access, experiences with produce distribution events, and challenges to improving dietary quality.

Conditions

None Volunteer

Study ID

NCT07780708

Start date

Feb 26, 2026

Status verified date

Aug, 2026

Completion date

Oct, 2026

Anticipated

Primary completion date

Oct, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 60+

Healthy Volunteers: Accepted

Inclusion Criteria:

  • Participants eligible for enrollment in either the survey or interview component must meet the following criteria:

  • Be 60 years of age or older
  • Be a regular attendee (i.e., more than one visit) at L.A. County Food Rx produce distribution events
  • Be able to communicate in English or Spanish, as these are the languages in which study materials and interviews are available
  • Be able to provide informed consent and complete the brief study activities These criteria reflect the study's focus on older adults at increased risk for chronic disease due to food insecurity and poor diet quality. English and Spanish were selected based on the primary languages spoken at Food Rx distribution sites and the capacity of the study team to support accurate, culturally sensitive data collection.

Exclusion Criteria:

  • Individuals will be excluded if they:

  • Are younger than 60 years old
  • Are first-time attendees at the produce distribution site (i.e., not familiar with program operations)
  • Are unable to understand or communicate in English or Spanish
  • Are unable to provide informed consent or complete the questionnaires or interview due to cognitive or physical limitations Language and participation history were included as exclusion criteria to ensure participant familiarity with the setting and the ability to engage meaningfully in data collection. ose who cannot provide informed consent will be excluded in accordance with ethical research protections for vulnerable adults.

Study Design

Enrollment

125 participants

Anticipated

Interventions and Outcome Measures

Primary outcome measure

  • Global Diet Quality Questionnaire-Global Dietary Recommendations (GDQQ-GDR) [ Time Frame: Participants will be asked the GDQQ surveyed once during the study period. Assessed once at enrollment during completion of baseline dietary quality questionnaires (approximately 15-20 minutes) ]

Central Contacts and Locations

Central contacts

Frederick Ferguson, MD, MS

13366862355fferguson@mednet.ucla.edu

Locations

Hubert H. Humphrey Comprehensive Health Center

Recruiting

Los Angeles, California, United States, 90003

Contacts

Frederick Ferguson

3366862355fferguson@mednet.ucla.edu

More Information

Sponsor

University of California, Los Angeles

Last update posted

Aug 21, 2026

Last verified

Aug, 2026

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-09. This information was provided to ClinicalTrials.gov by University of California, Los Angeles on 2026-08-21.