• Marathon Science
  • Posts
  • 🏃‍♂️ Recover Faster After Every Run—The Science-Backed Nutrition + Supplement Plan

🏃‍♂️ Recover Faster After Every Run—The Science-Backed Nutrition + Supplement Plan

🏃‍♂️ Recover Faster After Every Run—The Science-Backed Nutrition + Supplement Plan

Estimated read time: 3.1 minutes  (same time it took Augie to steal my post-run banana) 🍌.

Hey Performance Nerds! Jonah here. 🤓

What you eat and the supplements you take after your long run can make or break your next session.

We’re breaking down a new paper that reveals the actual science of recovery nutrition—not influencer smoothies that cost $12 and taste like chalk.

  • 🍝 The best carb combos to supercharge recovery

  • 💪 A no-BS breakdown of protein needs and timing

  • 🧪 The most effective recovery supplements (creatine, caffeine, and more)

  • 💦 Rehydration strategies every endurance athlete should master

🧠 Performance Tip: Recovery Shake Secrets

If you're training hard, water or a random protein shake isn’t enough.

To recover fast and train again strong, you need dual carbs + quality protein—the two keys to rapid glycogen replenishment and muscle repair.

That’s why I use SiS BETA Recovery. It delivers:
 60g carbs with a 1:1 ratio of maltodextrin + fructose (targets both muscle and liver glycogen)
 30g whey protein to activate recovery and rebuild muscle
 Probiotics to support digestion and immune function

Just mix with water and drink within 30 minutes post-run. It’s science-backed, gut-friendly, and built for endurance athletes training 90+ minutes or doing doubles.

Proud to have Science in Sport (SiS) as the official sponsor of Marathon Science.

🍝 1. Carbs First: The Foundation of Recovery

Target: 1.0–1.2g/kg per hour for the first 4 hours post-run

Skip carbs post-run and your next session will suck. Period.

📈 The Science:

  • Muscle glycogen = the fuel tank you just emptied.

  • Glycogen refill rates peak in the first 2 hours post-run.

    • Your muscles are like sponges, ready to soak up carbs—no insulin needed.

  • Glucose + fructose combos (e.g., toast + honey) = faster absorption + fewer gut issues.

    • Fructose and glucose use different gut transporters so more efficient absorption, lower GI distress.

Delay carbs by 2 hours? You slash glycogen resynthesis by 50%.

⚠️ Note: This chart shows the rate of early glycogen resynthesis—not full recovery. Even with a high-carb diet, full glycogen restoration takes 24–48 hours after a hard session.

Do This:

  • Eat 1.0–1.2g/kg carbs per hour for 4 hours post-run.

  • Combine glucose + fructose sources:

    • Glucose = muscle glycogen refill

    • Fructose = liver glycogen refill (key for blood sugar and next-run performance)

🔹 Top Recovery Carb Combos:

  • Toast with honey + banana + OJ

  • White rice + eggs + fruit smoothie

  • Chocolate milk + jam bagel

💪 2. Protein = Repair Mode Activated

Target: 20–40g high-quality protein within 1–2 hours post-run

Carbs refill the tank. Protein repairs the engine.

📊 The Science:

  • 20–40g of protein = muscle repair via muscle protein synthesis (MPS)

  • Leucine protein (amino acid) is the key trigger for MPS

    • High in whey and animal proteins.

  • Plant-based? Eat more soy, rice, and pea to get more protein (25-40g) and hit your leucine target.

🕒 Timing Tip:

  • The "anabolic window" is mostly myth—total daily intake matters more than exact timing.

    • But having protein available post-run likely improves recovery and can improve performance for your next hard session

  • Distance runners should aim for at least ~1.2–1.8 g/kg per day, while power athletes need closer to 1.7–2.2 g/kg 

🤝 Bonus: Carbs + Protein = Recovery Power Couple

  • Protein boosts insulin when carb intake is low (<1.2g/kg/hr), speeding glycogen refill.

  • Carbs + protein = faster nutrient delivery, better glycogen storage, and stronger muscle repair—especially if you're training again that day.

🛋 Pre-sleep Bonus:

  • ≥40g casein or mixed protein before bed = overnight MPS boost if daily protein is low

💦 3. Hydrate Like a Nerd (Not Just with Water)

Target: 125–150% of sweat loss + sodium + carbs

Drinking water alone is fine. But if you're training again tomorrow—or in 6 hours—you’ll want an upgrade.

📊 The Science:

  • Rehydration restores blood plasma volume, glycogen, and helps muscle repair.

  • Sodium helps your body retain fluids—water alone often passes right through.

Do This

  • Drink 125–150% of weight lost during training (weigh yourself before/after runs).

  • Fluid alone ≠ rehydration. 

    • You need electrolytes + carbs to retain it.

    • Sodium helps you hold onto fluid by promoting water retention 

picture of some sort here

🏆 Best Hydration Options:

  • Skim milk = protein + carbs + sodium

  • OJ + pinch of salt

  • Electrolyte mixes (e.g., SiS Hydro Tablets)

⛔ Not So Helpful:

  • Beer, tea, and diet soda — fun but not hydrating.

🧪 4. Next-Level Recovery Stacks (For Doubles or Heavy Training Weeks)

Creatine + Carbs

  • Boosts glucose uptake and glycogen storage—especially after the 6-hour mark post-run

  • Reduces post-exercise inflammation

  • Take 5g creatine monohydrate post-run with carbs.

Caffeine + Carbs

  • Enhances post-run glycogen storage and may reduce soreness—especially if you’re training low-carb.

  • Best used after hard sessions and before doubles to boost muscle glycogen

  • Cap intake at <6mg/kg to avoid sleep issues

Sodium Bicarbonate

  • Buffers acid after intense sessions (like double thresholds)

  • Useful for intense double days

  • Works best when taken ~0.3g/kg post-run

  • Use newer enteric-coated capsules to reduce GI discomfort

🧪 Advanced Athlete Tip: Don’t take everything all the time. Use stacks strategically

✅ Practical Summary: Recovery Blueprint ❤️‍🩹

Save this. Print it. Tattoo it on your water bottle.

After a hard run or workout:

  • 🍝 Refuel fast: 1.0–1.2g/kg of carbs per hour in the first 4 hours

  • 💪 Rebuild muscle: 20–40g of high-quality protein within 2 hours

  • Hit Your Daily Protein: Aim for 1.2-2.2 g/kg

  • 💦 Hydrate smarter: Drink 125–150% of sweat loss (weigh yourself pre/post)

  • 🧂 Don’t skip salt: Add sodium + carbs to your fluids for full rehydration

  • 🧪 Stack strategically: Add creatine if training again within 24 hours

  • Use caffeine wisely: Only if you tolerate it—and actually need it

Are You a True Running Nerd? Prove it.. 🧐

Welcome to the prove you’re a nerd section. Each week, I ask a question about a common running science myth.

Answer correctly, and you’ll be entered into a weekly raffle to win a package of Jonah’s favorite supplements.

What’s the most effective tapering strategy for peak performance? 🎽📉

Login or Subscribe to participate in polls.

Last Week’s Results: Protein Pros in the House! 🍳💪

Nice work, team—you clearly know that when it comes to muscle gains, it’s the whole day’s protein puzzle, not just the post-workout shake that matters. 🧩✅

The correct answer? Total daily protein intake.

It’s not about slamming a shake the second you drop the dumbbells—it’s about consistently hitting your target grams per day to support muscle repair and growth. Spread it out, but most importantly… get it in! 💯📈

Here’s how the votes stacked up:
⬜️ A. Timing your protein shake immediately post-workout ⏱️ – 51 votes
⬜️ B. Hitting a high-protein breakfast window 🍳 – 6 votes
🟨 C. Spreading your intake evenly across the day 🧩 – 49 votes
🟩 D. Total daily protein intake 💯 – 173 votes

Don’t forget: You + Science = AWESOMENESS 😎

Yours in science,

Jonah

P.S. - We have a crew of 15,270+ nerds here who are running FAST using science.

Did you need running science advice or tips? 🏃‍♀️💨🧪

Reply with your question, Augie and I (pictured below) will get back to you with science-backed tips!

Enjoy the newsletter? Please forward to a pal. It only takes 18 seconds. Making this one took 11.23 hours.

Did someone forward this email to you? 

Please email me directly if you’re interested in references for this week!