RecruitingNot Applicable

Effects of Increased Greek Yogurt Consumption in Youth and Young Adult Athletes

Canada40 participantsStarted 2023-09-01

Plain-language summary

Physical activity and dairy consumption during growth and development are each known to improve peak bone mass in young adults. Peak bone mass, the maximum amount of bone a person will have in their lifetime, is typically reached in the early 20's in females and late 20's in males. However, evidence suggests that young people do not consume enough dairy to maximize their bone mass. The resulting effect in peak bone mass can be troublesome, particularly for athletes, such as volleyball players. This study aims to determine whether increased dairy consumption combined with training can have an additive effect on the physiology of young competitive athletes. Specifically, we will examine whether Greek yogurt consumption will lead to beneficial changes in bone metabolism and inflammation, in adolescent and young adult, male and female athletes, similar to those observed with whey protein supplementation. Many athletes choose exclusively protein supplementation and miss out on other nutrients vital for healthy growth and development. By examining the benefits of Greek yogurt across different athlete age groups and sexes, this work will help reshape the attitudes, beliefs, and behaviours surrounding diet of young athletes.

Who can participate

Age range

15 Years – 22 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Competitive youth or varsity athletes Exclusion Criteria: * Presence of injury * Inability to participate in practices * Allergy to dairy foods/dairy protein or * Diagnosis with lactose intolerance

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Osteocalcin

Timeframe: Baseline (week 0)

Osteocalcin

Timeframe: End of control period and pre-intervention (week 8)

Osteocalcin

Timeframe: Middle of intervention period (week 16)

Osteocalcin

Timeframe: Completion of intervention period (week 24)

Amino-terminal propeptide of type I collagen (P1NP)

Timeframe: Baseline (week 0)

Amino-terminal propeptide of type I collagen (P1NP)

Timeframe: End of control period and pre-intervention (week 8)

Amino-terminal propeptide of type I collagen (P1NP)

Timeframe: Middle of intervention period (week 16)

Trial details

NCT IDNCT05922462

SponsorBrock University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2025-08-30

Contact for this trial

Panagiota Klentrou, PhD

9056885550 nklentrou@brocku.ca

View on ClinicalTrials.gov More Bone Growth Abnormal trials

Plain-language summary

Who can participate

Age range

15 Years – 22 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

What they're measuring

Osteocalcin

Timeframe: Baseline (week 0)

Osteocalcin

Timeframe: End of control period and pre-intervention (week 8)

Osteocalcin

Timeframe: Middle of intervention period (week 16)

Osteocalcin

Timeframe: Completion of intervention period (week 24)

Amino-terminal propeptide of type I collagen (P1NP)

Timeframe: Baseline (week 0)

Amino-terminal propeptide of type I collagen (P1NP)

Timeframe: End of control period and pre-intervention (week 8)

Amino-terminal propeptide of type I collagen (P1NP)

Timeframe: Middle of intervention period (week 16)