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Sulphur Amino Acid Requirements in Adults >60 Years

NCT04595188 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 16

Last updated 2023-09-13

No results posted yet for this study

Summary

This study aims to determine the requirements for the sulphur amino acids in adults over the age of 60 years:

1. the total sulphur amino acid requirement as methionine only. Methionine is an essential amino acid.
2. the minimum methionine requirement as methionine in the presence of excess dietary cysteine.

It is known that protein and amino acid metabolism may be altered with age and methionine and cysteine, in particular, may be important in the diet of older adults.

Up to 7 different levels of methionine intake as methionine only (no dietary cysteine) and up to 7 different levels of methionine intake in the presence of excess dietary cysteine will be tested in each subject in random order. Each level of intake will involve a 3-day maintenance diet, with measures being collected on the third.

Conditions

  • Healthy

Interventions

OTHER

Sulphur amino acids

For the total sulphur amino acid requirement, there are 7 different methionine test levels (without dietary cysteine) ranging from 5 to 40 mg of methionine per kilogram body weight per day. For the minimum methionine requirement, there are 7 different methionine test levels (with excess dietary cysteine).

Sponsors & Collaborators

  • Canadian Institutes of Health Research (CIHR)

    collaborator OTHER_GOV

  • The Hospital for Sick Children

    lead OTHER

Principal Investigators

  • Glenda Courtney-Martin, MSc, PhD, RD · The Hospital for Sick Children

Study Design

Allocation
NA
Purpose
OTHER
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
60 Years
Max Age
90 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2020-10-10
Primary Completion
2022-12-31
Completion
2022-12-31

Countries

  • Canada

Study Locations

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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 NCT04595188 on ClinicalTrials.gov