Injuries are part of many athletes’ reality, whether caused by excessive training load, acute trauma, or inadequate recovery between sessions and competitions. When this happens, the focus usually shifts to physical therapy, rest, and a gradual return to training. But there’s another factor that is often overlooked: nutrition.
Nutrition alone does not heal an injury, but it can directly influence tissue repair, inflammation control, muscle mass preservation, and the time it takes to return to sport. In some cases, poor nutritional strategies may even delay recovery.
What happens in the body during an injury?
After a sports injury, the body goes through a complex recovery process that involves different phases:
Inflammatory phase
During the first hours and days, inflammatory cells increase to initiate tissue repair.
Regeneration phase
The body begins rebuilding muscle fibers, tendons, ligaments, or bone structures affected by the injury.
Remodeling phase
The tissue gradually becomes stronger to tolerate mechanical load again.
Each stage requires energy and nutrient availability. When athletes drastically reduce food intake because they are training less, recovery can be negatively affected.
Recent studies highlight that maintaining adequate energy availability is one of the key pillars of sports rehabilitation, especially to prevent lean mass loss during periods of immobilization or reduced training.
Can eating less during an injury make recovery worse?
This is a common mistake.
Many athletes think: “If I’m training less, I should eat much less.”
In reality, training energy expenditure may decrease, but the body still requires energy to repair injured tissues. The inflammatory and healing process increases metabolic demands.
Aggressive calorie restriction may lead to:
- loss of muscle mass
- impaired tissue recovery
- increased fatigue
- risk of nutrient deficiencies
- slower return to sport
The goal is not to maintain exactly the same intake as during heavy training, but also not to create a significant energy deficit.
Protein: the most important nutrient during recovery?
During periods of immobilization or reduced training volume, the risk of muscle loss increases.
Protein plays a central role because it provides amino acids needed for:
- maintaining muscle mass
- protein synthesis
- tissue repair
- functional recovery
Current literature suggests that injured athletes may benefit from spreading protein intake throughout the day and prioritizing high quality protein sources.
Good options include:
- lean meats
- eggs
- dairy products
- whey protein
- yogurt
- legumes
Recent reviews show that higher protein intake may help reduce muscle loss during rehabilitation.
Can collagen help?
This topic has gained attention in recent years, especially for injuries involving:
- tendons
- ligaments
- cartilage
- connective tissue
Collagen provides amino acids that are important for these structures, and some studies suggest benefits when combined with rehabilitation training.
A 2024 meta analysis showed positive effects of collagen combined with exercise on musculoskeletal remodeling and functional recovery, although more studies are still needed to define ideal protocols.
Important: collagen does not replace proper rehabilitation.
What about micronutrients?
Some micronutrients also deserve attention:
Vitamin D
Important for bone health, muscle function, and immune support. Deficiencies may delay recovery.
Calcium
Essential in cases involving bone injuries.
Vitamin C
Plays a role in collagen synthesis.
Zinc and magnesium
Support healing processes and cellular recovery.
Supplementation should only be used when there is a real need or a confirmed deficiency.
Can omega 3 help reduce inflammation?
Omega 3 may have anti inflammatory effects, but there is an important consideration.
Initial inflammation is a natural part of the healing process. Excessively suppressing this response may not be beneficial.
That’s why its use should be individualized and guided by healthcare professionals. Current evidence is promising, but still not definitive.
Practical applications for athletes
If you’re dealing with an injury, these strategies may help:
- avoid aggressive calorie restriction
- maintain adequate protein intake
- prioritize nutrient dense foods
- adjust carbohydrate intake according to reduced training load
- stay properly hydrated
- align supplementation with a sports nutritionist or physician
- respect physical therapy and gradual return to training
Nutrition does not magically speed up recovery, but it can help avoid mistakes that delay it.
Conclusion
Recovering from a sports injury depends on several factors: proper diagnosis, effective rehabilitation, sleep, training load management, and nutrition.
Among these pillars, nutrition is often underestimated. Ensuring adequate energy intake, sufficient protein, and attention to micronutrients can make recovery more efficient and help athletes return to sport in better condition.
Recovering well is also part of performance.
