Effects of Dietary Folate and Phytate Zinc Absorption: Zinc Amino Acid Complexes vs. Zinc-chloride

NCT ID: NCT05273710

Last Updated: 2022-12-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-03-28

Study Completion Date

2022-11-16

Brief Summary

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The purpose of this study is to determine the effects of consuming a small breakfast of juice and toast with added phytate or with taking a folic acid supplement on the absorption of a small amount of zinc that is either bound to amino acids or to chloride or picolinate. The results of this study will provide new information on how components of diet (e.g., phytate, and folic acid) affect the absorption of different forms of dietary zinc (e.g., zinc bound to amino acids, zinc chloride, and zinc picolinate).

Detailed Description

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Conditions

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Dietary Zinc Absorption

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Zinc absorption study

Zinc absorption is determined from each of 3 test meals in all subjects.

Group Type OTHER

Regular toast and juice

Intervention Type OTHER

Participants consume a single test meal composed of regular whole wheat toast and apple juice, and zinc absorption is measured.

High phytate toast and juice

Intervention Type OTHER

Participants consume a single test meal composed of high phytate whole wheat toast and apple juice, and zinc absorption is measured.

Regular toast and juice, with folic acid

Intervention Type OTHER

Participants consume a single test meal composed of regular whole wheat toast and apple juice, with 400 mcg folic acid; and zinc absorption is measured.

Interventions

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Regular toast and juice

Participants consume a single test meal composed of regular whole wheat toast and apple juice, and zinc absorption is measured.

Intervention Type OTHER

High phytate toast and juice

Participants consume a single test meal composed of high phytate whole wheat toast and apple juice, and zinc absorption is measured.

Intervention Type OTHER

Regular toast and juice, with folic acid

Participants consume a single test meal composed of regular whole wheat toast and apple juice, with 400 mcg folic acid; and zinc absorption is measured.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Apparently healthy men (i.e., have no current health issues requiring medications or a specific diet), 19 to 50 years of age, with a body mass index between 18 and 30 kg/m2, and willing to eat only the foods provided by the study for 17 days

Exclusion Criteria

* Those reporting current chronic or acute diseases or HIV diagnosis, food allergies, smoking tobacco or marijuana, alcohol abuse, any contraindication to venipuncture such as bleeding disorders or use of blood thinners; use of illicit drugs; regular consumption of medications, micronutrient supplements, or both. Vegetarians, or those unable to eat meat, are also excluded since the foods for the study contain meat.
Minimum Eligible Age

19 Years

Maximum Eligible Age

50 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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University of California, Berkeley

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Janet C King, Ph.D.

Role: PRINCIPAL_INVESTIGATOR

University of California, Berkeley

Locations

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University of California

Berkeley, California, United States

Site Status

Countries

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United States

Other Identifiers

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2020-01-12879

Identifier Type: -

Identifier Source: org_study_id