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Use of Stable Carbon And Nitrogen Isotopes to Improve Dietary Assessment for Cardiovascular Disease

NCT04933656 · Status: WITHDRAWN · Phase: NA · Type: INTERVENTIONAL

Last updated 2026-01-26

No results posted yet for this study

Summary

In this research study, the investigators will use a novel approach to measure what people eat. The goal is to find out whether stable isotopes that can be measured in blood, hair, and fingernails are better at measuring what people eat than the surveys that are currently used. To meet the goal, the investigators will do three things. First, the investigators will feed study participants known amounts of foods and nutrients. Second, after study participants have eaten the food, the investigators will measure stable isotopes in samples of study participants' blood, hair, and fingernails. Third, the investigators will determine how well these samples reflect what was eaten. The investigators will also give surveys to study participants to determine how well the surveys reflect what was eaten. This will allow the investigators to do a relative comparison of the measurements from isotopes and surveys.

Conditions

  • Healthy Adults

Interventions

DIETARY_SUPPLEMENT

one 24 hr cycle of meals at a 2000 kcal level

50g added sugar

DIETARY_SUPPLEMENT

one 24 hr cycle of meals at a 2000 kcal level + one serving sugar sweetened beverage

90 grams added sugar

DIETARY_SUPPLEMENT

one 24 hr cycle of meals at a 2000 kcal level + two servings sugar sweetened beverage

130 grams added sugar

DIETARY_SUPPLEMENT

one 24 hr cycle of meals at a 2000 kcal level + three serving sugar sweetened beverage

170 grams added sugar

Sponsors & Collaborators

Principal Investigators

  • Cheryl A. Anderson, PhD · University of California, San Diego

Study Design

Allocation
RANDOMIZED
Purpose
HEALTH_SERVICES_RESEARCH
Masking
DOUBLE
Model
CROSSOVER

Eligibility

Min Age
21 Years
Max Age
74 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2021-08-31
Primary Completion
2022-02-28
Completion
2022-02-28

Countries

  • United States

Study Locations

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Entities

Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04933656 on ClinicalTrials.gov