8 Supplements That Speed Recovery and Boost Endurance for Runners

Train Hard. Recover Faster.

If you're pushing for a personal best or trying to shave minutes (or hours) off your marathon time, how you recover is just as important as how you train. These 8 supplements are trusted by endurance athletes to reduce soreness, speed up recovery, and boost performance.

1. Creatine Monohydrate

• Benefit: Boosts muscle energy and endurance.
• How to use: 3–5g daily.

2. BCAAs (Branched-Chain Amino Acids)

• Benefit: Reduces muscle breakdown and DOMS.
• How to use: 5–10g before or after training.

3. L-Glutamine

• Benefit: Helps muscle recovery and supports immune function.
• How to use: 5–10g post-workout.

4. Omega-3 Fatty Acids (Fish Oil)

• Benefit: Reduces inflammation and supports joint health.
• How to use: 1000–3000mg daily.

5. Magnesium

• Benefit: Relieves cramping, supports sleep and recovery.
• How to use: 200–400mg before bed.

6. Curcumin (Turmeric Extract)

• Benefit: Natural anti-inflammatory for sore or overused muscles.
• How to use: 500–1000mg daily with food.

7. Coenzyme Q10 (CoQ10)

• Benefit: Supports mitochondrial energy and reduces fatigue.
• How to use: 100–200mg daily.

8. Oxygen For Sport (Ox66®)

• Benefit: Delivers oxygen directly to muscles, helping flush lactic acid, reduce fatigue, and speed muscle recovery.
• How to use: Take 2 capsules 30–60 minutes before training or racing, and again immediately after to accelerate recovery.
• Why it works: The only way your body clears lactic acid is with oxygen. Oxygen For Sport provides that oxygen—efficiently and effectively.
• Certified: Oxygen For Sport is Informed Sport Certified, tested for over 250 banned substances and trusted by elite athletes.
• Order now →

Are These Supplements Safe for Tested Athletes?

Yes—all the supplements listed above are widely used by endurance athletes and are considered safe for those subject to drug testing, such as NCAA athletes, Olympians, and professionals. None of the ingredients listed are on the WADA Prohibited List.

However, the risk comes from contamination, not the ingredients themselves. That’s why it’s important to buy from reputable brands that follow Good Manufacturing Practices (GMP) and, ideally, certify their products.

Best Practices for Safe Supplement Use:

• Choose supplements with Informed Sport, Informed Choice, or NSF Certified for Sport labels.
• Avoid products with “proprietary blends” that don’t disclose exact ingredients.
• Use brands that publish batch-level testing or provide third-party lab results.

Oxygen For Sport stands out as a premium choice—it is Informed Sport Certified and verified safe for professional and Olympic-level athletes worldwide.

Stack Smart for Results

Combine Oxygen For Sport with BCAAs and L-Glutamine after workouts for a recovery trifecta. Add magnesium and CoQ10 at night to maximize overnight repair. With the right stack, you don’t just recover—you get stronger every day.