“Gaelic games put the body under constant strain. Cróga Collagen is made for players who want to stay prepared for the demands of training and competition.”
Colm Begley, Head of Player Welfare and Engagement at the GPA
Introduction
Collagen has gained increasing attention in sports nutrition, particularly in high-impact field sports such as Gaelic football, hurling and camogie.
Gaelic games demand repeated high-intensity efforts, including sprinting, jumping, tackling and rapid changes of direction. These actions place regular stress on connective tissues, including tendons, ligaments, cartilage and bone.
Collagen is the main structural protein found in many of these tissues. For Gaelic games athletes, supporting connective tissue health can be an important part of a wider training, recovery and nutrition routine.
Structure and function of collagen
Collagen makes up around 25-30% of total body protein and helps provide structure, strength and resilience across connective tissues.
The collagen types most relevant to sport include:
- Type I: found mainly in tendons, ligaments and bone
- Type II: found mainly in cartilage
- Type III: associated with muscle and vascular tissues
These collagen types contribute to the extracellular matrix, which helps support load-bearing tissues during movement.
Why collagen matters in Gaelic games
GAA sports are characterised by intermittent high-intensity activity, combining endurance with repeated explosive bursts.
Movements such as cutting, landing, sprinting and tackling place repeated load on collagen-based tissues.
Over time, this can contribute to:
- General wear and tear on connective tissues
- Increased demand on tendons and ligaments
- Greater need for structured recovery and nutrition support
Common injury areas in Gaelic games include the hamstrings, patellar tendon, Achilles tendon and knee ligaments. Collagen should not be seen as a treatment for injury, but it may be a useful nutritional support alongside proper training, recovery and professional guidance where needed.
Collagen supplementation and athletic adaptation
Tendon stiffness and integrity are important for athletic movement. Tendons help transfer force during sprinting, jumping and rapid deceleration.
Research suggests that collagen supplementation, particularly when combined with mechanical loading such as resistance training or plyometrics, may support tendon adaptation over time.
This is relevant for Gaelic games because effective force transfer is important for acceleration, agility, jumping and repeated high-intensity performance.
Collagen and joint health
Collagen also plays an important role in cartilage structure. Cartilage helps joints tolerate load during running, landing and contact.
For athletes exposed to repeated impact, supporting normal collagen formation can be part of a broader approach to joint health.
Cróga Collagen includes Vitamin C. Vitamin C contributes to normal collagen formation for the normal function of blood vessels, bones and cartilage.
Collagen and recovery
Collagen has also been studied in rehabilitation settings, particularly when combined with progressive loading exercise.
For players returning from injury, nutrition is only one part of the process. Strength work, gradual return to play, sleep, hydration and professional rehabilitation guidance remain essential.
Collagen and male and female Gaelic games athletes
Male Gaelic games players often complete high-load strength and conditioning programmes across a long season. This places ongoing demand on connective tissues, making recovery and nutrition important.
Female athletes may experience changes in collagen metabolism linked to hormonal factors. Research indicates that fluctuations in oestrogen levels may affect collagen synthesis, ligament stiffness and joint laxity.
For female Gaelic games players, connective tissue support may be especially relevant as part of a wider approach to training, conditioning and recovery.
Practical guidelines for collagen use
Current research commonly uses collagen in the range of 10-15g per day.
A common practical approach is:
- Take collagen 30-60 minutes before training or exercise
- Combine collagen with Vitamin C
- Use it consistently alongside structured training
Collagen should be viewed as a supportive addition to a training and nutrition plan, not a standalone solution.
GAA and Sport Ireland supplement guidance
Players should take a careful and informed approach to supplementation. Supplements should be used to support a balanced diet, not replace it.
GAA athletes should also be aware of anti-doping responsibilities and should choose products carefully. Useful guidance is available through GAA anti-doping education, the GAA Fuel Your Game nutrition initiative and Sport Ireland anti-doping resources.
Conclusion
Collagen is a fundamental component of connective tissue and plays an important structural role in tendons, ligaments, cartilage and bone.
For Gaelic games, where players are exposed to repeated sprinting, jumping, tackling and rapid changes of direction, collagen may be a useful addition to a wider performance and recovery routine.
When integrated into a structured training and nutrition programme, collagen supplementation can help support the connective tissues that Gaelic games athletes rely on throughout training and match play.
This article is for general information only and should not replace medical, nutritional or physiotherapy advice.
References
*EFSA Authorised Claim:
Vitamin C contributes to normal collagen formation for the normal function of blood vessels, bones and cartilage.
Birt, K.M. & McCarthy, H.E. (2023). The effect of estrogen on anterior cruciate ligament structure and function: A systematic review. Journal of Musculoskeletal Disorders and Treatment. [clinmedjournals.org]
Brueckheimer, P.J. et al. (2025). The effects of type I collagen hydrolysate supplementation on bones, muscles and joints: A systematic review. Orthopedic Reviews. [orthopedicreviews.openmedicalpublishing.org]
Buchalski, A. et al. (2026). Collagen supplementation on tendon-related structural and performance outcomes: A systematic review. Journal of Functional Morphology and Kinesiology. [mdpi.com]
Lee, J. et al. (2023). Collagen supplementation augments changes in patellar tendon properties in female soccer players. Frontiers in Physiology. [frontiersin.org]
Parker, E.A. et al. (2024). Menstrual cycle hormone relaxin and ACL injuries in female athletes: A systematic review. Iowa Orthopaedic Journal. [pmc.ncbi.nlm.nih.gov]
Ravindran, R. et al. (2026). Collagen supplementation for skin and musculoskeletal health: An umbrella review of meta-analyses on elasticity, hydration and structural outcomes. Aesthetic Surgery Journal Open Forum. [academic.oup.com]
Shaw, G. et al. (2017). Vitamin C-enriched gelatin supplementation before intermittent activity augments collagen synthesis. American Journal of Clinical Nutrition. [ajcn.nutrition.org]
Sun, C. et al. (2025). Efficacy of collagen peptide supplementation on bone and muscle health: A meta-analysis. Frontiers in Nutrition. [frontiersin.org]
van Dam, L. et al. (2023). The JUMPFOOD study: additional effect of hydrolyzed collagen and vitamin C to exercise treatment for patellar tendinopathy in athletes. Trials. [link.springer.com]
Kirmse, M. et al. (2024). Collagen peptide supplementation and musculoskeletal performance: A systematic review and meta-analysis. German Journal of Sports Medicine. [germanjournalsportsmedicine.com]