10/06/2025
Why You Need to Fuel Properly to Recover from Injury
I've made this mistake too many times. Training 3-4 hours a day but – body aching when I try to sleep. Joints feeling stiff and inflamed on waking. Training making me feel worse. Injuries flaring up.
I realized I wasn't eating anywhere near enough protein and carbs. When it comes to injury rehab, you need adequate nutrients for repair. If you are constantly in a catabolic state, your body will use up vital amino acids for energy that should be going to rebuild soft tissues like muscles, ligaments, bones, cartilage, and tendons.
Protein and Carb Intake Need to Be on Point
Protein: Fighters need to aim for 1.6–2.2 g per kg/day protein. Some may even suggest higher, such as 3 grams per kg, for example, after surgery or during weight cutting.
Collagen (the main structural protein in tendons/ligaments) is built from amino acids like glycine, proline, and hydroxyproline. Low protein diets impair extracellular matrix (ECM) remodeling, slowing the healing of these connective tissues.
Carbohydrates: Carbs need to be adequate. Carbs drive bone formation; low carbs for too long will negatively impact bone health. If you're doing a high-impact sport, then this is crucial to avoid.
Inadequate carb/glucose negatively affects synovial fluid production and cartilage synthesis. This isn't going to hurt immediately, but over months and years, it's not great.
Muscles with adequate glycogen stores are better able to sustain force production, control movements, and absorb eccentric loads (muscle lengthening under tension, i.e., landing from jumps). This means if your muscles are constantly glycogen depleted, they won't be absorbing forces as well. Glycogen = high-intensity nervous system fuel.
Supplements?
Don't rely on them too much, but some that show evidence are:
Creatine: May aid muscle and injury recovery.
Omega-3: Some evidence for inflammation attenuation, and they have been shown to enhance collagen formation in tendons and ligaments.
Vitamin D: Supports bone and muscle health. Deficiency is common. Maintaining blood levels >30 ng/mL may prevent stress fractures. Best way to get is sunlight.
Consuming 15 g gelatin or hydrolyzed collagen + 50 mg vitamin C 30–60 minutes before loading exercises may stimulate collagen synthesis in tendons/ligaments.
Key Takeaway
These are just general guidelines. The main takeaway is to keep it anabolic, high protein and carbs, when training. We want to avoid catabolism.
It should all be very individualized. No single plan fits all; it should be tailored based on injury type, severity, athlete weight history, and training.
P.S. No, you won't be doing damage to your joints after a few underfed sessions. This is something to consider after injury and over longer periods.