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Greek Yogurt Consumption for Bone Development in Athletes

N/A

Recruiting

Led By Panagiota Klentrou, PhD

Research Sponsored by Brock University

Eligibility Criteria Checklist

Specific guidelines that determine who can or cannot participate in a clinical trial

Must have

Be younger than 65 years old

Timeline

Screening 3 weeks

Treatment Varies

Follow Up completion of intervention period (week 24)

Awards & highlights

No Placebo-Only Group

Summary

This trial will look at whether combining physical activity and dairy consumption can help young athletes maximize their peak bone mass and improve their health.

Who is the study for?

This trial is for young competitive athletes who are looking to improve their bone health. Participants should be actively engaged in sports and not have any allergies to dairy, lactose intolerance, or injuries that prevent them from practicing.

What is being tested?

The study is testing if eating more Greek yogurt can help with bone development and reduce inflammation in youth and young adult athletes. It compares the effects of Greek yogurt consumption to whey protein supplementation during athletic training.

What are the potential side effects?

Since Greek yogurt is a common food item, side effects might include typical dairy digestion issues like bloating or stomach discomfort, especially for those unaccustomed to higher dairy intake.

Timeline

Screening ~ 3 weeks3 visits

Treatment ~ Varies

Follow Up ~ completion of intervention period (week 24)

Screening ~ 3 weeks

Treatment ~ Varies

Follow Up ~completion of intervention period (week 24)

This trial's timeline: 3 weeks for screening, Varies for treatment, and completion of intervention period (week 24) for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.

Primary study objectives

Amino-terminal propeptide of type I collagen (P1NP)

C-telopeptides of type I collagen (CTX)

Interleukin-10 (IL10)

+7 more

Secondary study objectives

Body fat percentage

Body mass

Bone Properties

+10 more

Awards & Highlights

No Placebo-Only Group

All patients enrolled in this study will receive some form of active treatment.

Trial Design

2Treatment groups

Experimental Treatment

Group I: Whey protein intervention group (WP)Experimental Treatment1 Intervention

Participants in the WP group will follow a similar consumption schedule but will be instructed by the RD to consume two servings/day (preferably morning and night) each of 2/3 of a scoop of commercially available WP powder (flavoured, \~29 g, 120 calories, 19 g protein, 112.5 g calcium; e.g., PURE Whey Protein, Walmart) for a total of 16 weeks. The WP scoop will be dissolved in water (e.g., 1 g of WP isolate to 10 mL of water, as recommended by the manufacturer). This protein dose is similar to the previous dose in young swimmers and comparable to other studies in adults. Athletes will be provided with appropriately marked scoops (corresponding to 2/3 of the manufacturer scoop) to measure their single servings. Each athlete will receive two large containers (2 x 907 g = 1814 g per week) at the beginning of each week, which will be enough to cover the two daily servings of 29 g (i.e., 58 g/day).

Group II: Greek yogurt intervention group (GY)Experimental Treatment1 Intervention

Participants in the GY group will be instructed by a registered dietician to consume 2 servings/day (preferably morning and night) of 175 g GY (0% MF, flavoured, 130 calories, 17 g protein, 225 g calcium; e.g., OIKOS High Protein GY) for a total of 16 weeks. For their convenience, the athletes will be provided with appropriate scoops to measure out 175 g of GY per serving of the larger 650 g commercially available, pre-packaged containers. Although it is recommended to consume the two servings morning and night, to increase ecological validity and strengthen the feasibility of the intervention, the timing of the servings will be flexible to facilitate the training and competition routines. For the same reasons, the athletes will be able to choose the flavour of their GY.

Treatment

First Studied

Drug Approval Stage

How many patients have taken this drug

Whey protein

2011

Completed Phase 4

~1180

Greek yogurt

2011

N/A

~60