Skip to main content
OpenTrials
Completed

NCT Number: NCT07265648

Assessing Diet, Stress Scores, and Other Health Metrics in Healthy Northern California Adults

The purpose of this study is to gather health and nutrition data from the population of Davis, CA and surrounding areas. This data will be used to help us test and improve our study procedures for a larger planned study on peanut consumption and effects on cardiovascular disease (CVD) risk.

Completed

Looking for future studies?

Notify Me

Key information

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Observational

Primary location

USDA Western Human Nutrition Research Center

Davis, California, 95616, United States

About this study

Participants will be recruited to complete an online survey asking questions about their stress levels, nut consumption, bowel patterns, body measurements, and county of residence. This data will be used to gain insight into the characteristics of this population.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Adults 18-65 years old
  • Currently living in Yolo, Sacramento, Solano, Sutter, or Placer counties
  • Able to complete an online survey written in English, on mobile phone, tablet, or computer

Exclusion criteria

  • Previous participation in the study

Treatment and study plan

Online survey

Other

Online survey containing a Perceived Stress Score - 4 instrument, a modified food frequency questionnaire, and will measure reported age, sex, geographical location, usage of prescription medications, food allergies, and stool frequency and consistency.

Primary outcomes

  1. Perceived Stress Score

    Time frame: Baseline

    Measured using a validated tool for assessing perceived psychosocial stress within the last month, the Perceived Stress Scale 4 (PSS-4). Participants will report their answers to 4 questions in frequencies ranging from "Never" to "Very Often" on a 5 point scale

  2. Nut Consumption Frequency and Quantity

    Time frame: Baseline

    Participants will input frequencies of nut and nut butter consumption and amounts of nuts and nut butter consumed in a typical month, using a modified food frequency questionnaire. Frequency will be reported as values ranging from "Never" to "6 or more times a week". Nut and nut butter consumption will be reported in cups and tablespoons

Secondary outcomes

  1. Consumption Frequency of Nut-Containing Foods

    Time frame: Baseline

    Reported as monthly consumption of nut containing foods (granola, cereal, pastries, breads, or other snacks or sweets) in frequencies ranging from "Never" to "6 or more times per week"

  2. Prevalence of Food Allergies

    Time frame: Baseline

    Reported as allergies to any of 9 common food allergens: (Peanuts, Tree Nuts, Egg, Wheat, Soy, Shellfish, Fish, Sesame, and Milk)

  3. Stool Frequency

    Time frame: Baseline

    Reported as usual number of bowel movements per week

  4. Stool Consistency

    Time frame: Baseline

    Reported using images of Bristol Scale stool types

  5. Body Mass Index (BMI)

    Time frame: Baseline

    Calculated using participant-reported height and weight

  6. Prescription Drug Use

    Time frame: Baseline

    Participants will confirm or deny intake of medications from 6 categories: (Asthma medications, Antibiotics or antivirals, weight loss medications, cholesterol or lipid lowering medications, blood pressure medications, or psychiatric medications)

  7. Age

    Time frame: Baseline

    Reported as age in years

  8. Biological Sex

    Time frame: Baseline

    Reported as sex assigned at birth

  9. Geographic Data

    Time frame: Baseline

    Reported as current county of residence

Sponsors and collaborators

Lead sponsor

USDA, Western Human Nutrition Research Center

Fed

Registry information

Official study title

Characterization, Perceived Stress Scores, Nut Consumption and Bowel Patterns of a Healthy Adult Population in Northern California: A Pilot Study

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Dec 5, 2025
Registry last updated
Jan 29, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.