Post-Workout Recovery: The Science of What to Take and When

What Is Recovery, Exactly?

Post-workout recovery encompasses: 1. Muscle protein synthesis (MPS) — repair and growth of muscle fibres damaged by training 2. Glycogen replenishment — restoring the stored glucose that powered your workout 3. Inflammation resolution — controlled inflammation drives adaptation; chronic inflammation impairs it 4. Neuromuscular recovery — restoring motor unit recruitment capacity 5. Hormonal rebalancing — normalising cortisol, managing testosterone/cortisol ratio

Supplements can support each of these processes — but only on top of adequate sleep and overall nutrition.

Priority 1: Protein (The Non-Negotiable)

Muscle protein synthesis peaks 2–4 hours post-exercise and remains elevated for 24–48 hours. Protein consumed in this window provides the raw materials for repair.

Optimal post-workout protein: - Amount: 20–40g complete protein. Meta-analyses suggest ~0.4g/kg body weight per meal maximises MPS. - Type: Whey protein is the gold standard — highest leucine content, fastest absorption. Effective alternatives: egg white protein, soy isolate. - Timing: Within 2 hours is ideal. The "30-minute window" is overstated — the benefit persists for 2 hours.

Leucine threshold: You need ~2.5–3g leucine per serving to maximally trigger MPS. Whey provides ~2.5g leucine per 25g protein. Plant proteins require ~30–35g for equivalent leucine.

Priority 2: Creatine (If Not Already Taken Pre-Workout)

Creatine is equally effective taken pre or post workout. Post-workout is a common choice because: - It can be added to a post-workout shake - Some studies show marginal benefit to post-workout timing vs pre

Dose: 3–5g creatine monohydrate daily. Timing matters less than consistency.

Priority 3: Carbohydrates (For Athletes Training >1x/Day)

For those training twice daily or competing in multi-session events, glycogen replenishment is urgent.

Recommended: 0.5–1.0g carbohydrate per kg body weight within 30–60 minutes post-training, combined with protein.

For recreational athletes training once daily, the urgency is lower — total daily carbohydrate intake matters more than timing.

Priority 4: Omega-3 (EPA + DHA)

Omega-3 fatty acids play two recovery roles: 1. Reduce exercise-induced inflammation — reducing DOMS and accelerating recovery of force production 2. Enhance MPS — some evidence that omega-3 augments the anabolic response to protein

Dose: 2–4g EPA+DHA daily (typically 3–6 capsules depending on concentration). Timing relative to workouts is irrelevant — consistent daily intake is what matters.

Priority 5: Magnesium (For Muscle Function and Sleep)

Magnesium is lost in sweat. Intense exercise can create a transient deficit. Magnesium depletion impairs: - Muscle function and cramp threshold - Sleep quality (critical for recovery) - Cortisol regulation

Dose: 300–400mg magnesium glycinate, taken in the evening.

What About BCAAs?

If you're consuming adequate total protein (1.6–2.2g/kg/day), BCAAs add nothing. They're a subset of amino acids already present in your protein. The BCAA market persists because leucine, isoleucine, and valine marketing is compelling — but the science says: get enough protein, and BCAAs are redundant.

Exception: Extended fasted training (2+ hours without food) where consuming full protein is impractical.

Tart Cherry Juice

One of the more evidence-based natural recovery aids. Meta-analyses show: - Reduction in DOMS (delayed onset muscle soreness) after eccentric exercise - Faster recovery of muscle force production - Improved sleep quality (natural melatonin content)

Protocol used in studies: 240ml tart cherry concentrate twice daily, starting 3 days before and continuing 4 days after intense exercise. Not a daily supplement — an acute periworkout intervention.

Vitamin D for Recovery?

Vitamin D receptors are found in muscle tissue. Deficiency is associated with reduced strength, increased injury risk, and impaired recovery. If you're not already supplementing, this is a high priority — particularly in the UK where 40%+ of adults are deficient in winter.

Dose: 1,000–2,000 IU D3 daily. Not post-workout specific — take daily.

The Recovery Stack Summary

| Supplement | Dose | Timing | |-----------|------|--------| | Whey protein | 25–40g | Within 2h post-workout | | Creatine | 5g | Post-workout (or any time) | | Omega-3 | 2–4g EPA+DHA | Daily (any time) | | Magnesium glycinate | 300–400mg | Evening | | Vitamin D3 | 1,000–2,000 IU | Daily | | Tart cherry (periworkout) | 240ml x2 | 3 days before + 4 after intense efforts |

What Matters More Than Supplements

1. Sleep: 7–9 hours. Recovery hormone secretion (GH, testosterone) is primarily sleep-dependent. 2. Total protein: Hitting your daily target matters more than any post-workout supplement. 3. Calories: You cannot rebuild in a significant deficit. Recovery requires energy. 4. Deload weeks: Every 4–6 weeks, reduce training volume 40–60% to allow systemic recovery.

Individual requirements vary. Athletes with high training loads should work with a sports dietitian.