A Culturally-relevant Micronutrient-dense Plant-rich (mNDPR) Dietary Intervention for Native Americans
Reduction of Risk Factors for Obesity and Linked Chronic Diseases in Native American Employees of the Twin Arrows Casino Through a Culturally-relevant Micronutrient-dense Plant-rich (mNDPR) Dietary Intervention
Who can join
Ages 18 and older · All sexes · Healthy volunteers welcome
Full eligibility criteria
Inclusion Criteria: * Self-identified Native American employee of Twin Arrows Casino; * 21-65 years of age; * self-reported body mass index (BMI) of \>24 kg/m; * not currently participating in a weight-loss program; * not taking any medications that could increase medical risk (e.g., insulin) or that had weight loss as a primary side effect; * must work at Navajo Gaming Enterprise one year prior to the start of the study and indicate intent to work at Navajo Gaming Enterprise over the following year through the length of the study. Exclusion Criteria: * Individuals reporting gastric bypass, adjustable gastric band, gastric sleeve, or duodenal switch weight loss surgeries; * pregnancy, or planning to become pregnant within the next year; * insulin dependence; * inability to attend weekly group coaching sessions will be ineligible to participate.
About the study
The investigators propose to conduct a randomized controlled trial with a wait-list control to determine efficacy in reducing risk of obesity and related disease in Native American employees of Twin Arrows Casino. Participants will be randomly assigned to the experimental group or the wait-list control. The experimental group will receive a 12-week mNDPR nutrition intervention with culturally relevant materials. Five NAU Masters of Public Health (MPH) students will be trained in Motivational Interviewing and the mNDPR nutrition protocol to serve as Lifestyle Coaches. These students will lead weekly, group-based coaching sessions with up to 15 participants each at Twin Arrows Casino. Participants will be assigned to their designated group based on their availability. The 12 weekly group sessions will be scheduled to accommodate various work shifts (day, night, and swing). The first group session will be 2-hours long to serve as an 'immersion', followed by weekly 1-hour sessions, all led by the Lifestyle Coaches. The Lifestyle Coaches will use Motivational Interviewing techniques to assist participants to develop personal goals. Lifestyle Coaches will also provide nutrition education, specifically using the mNDPR protocol. Participants in the wait-list control will receive the same intervention after the experimental group completes their 12-week intervention. In addition to measures at weeks 0 and 13, a 24-hour diet recall will be conducted in week 26 for the experimental group to explore long-term durability of diet quality changes.
What is being tested
- Micronutrient-dense plant-rich Intervention (behavioral)
Sponsor: Northern Arizona University · Participants: 146 · Started: Jan 18, 2023
Contact the study team
- Nanette Lopez, PhD, MS/MS · Phone: 928-523-7913
Official record on ClinicalTrials.gov — NCT04755062
Locations in the U.S.
| Arizona | PRANDIAL Lab, Flagstaff |
Conditions
From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.