Best NSF Certified Sports Supplements

1. Klean ATHLETE Klean Magnesium | Supports Ability to Produce and Utilize Energy (ATP), Contract and Relax Muscles and Improves Recovery Time* | NSF Certified for Sport | 90 Vegetarian Capsules

Klean Magnesium is a powerful supplement for athletes. It helps your body produce energy and use it well. This supports your workouts and daily activities.

It also helps your muscles work better. You can contract and relax them easily. This improves your performance and reduces fatigue.

Klean Athlete products are clean and safe. They are GMO-free and certified by NSF. Trust Klean to fuel your body and reach your peak.

2. Muscle Milk Pro Series Creatine Powder Supplement, Unflavored, 1.1 Pound, 100 Servings, 5g Creatine Monohydrate, NSF Certified for Sport, Packaging May Vary

Muscle Milk Pro Series Creatine Powder is a high-quality supplement designed to boost your workouts. It comes in a 1.1-pound canister with 100 servings, offering great value. Each serving provides 5g of creatine monohydrate, a key ingredient for high-intensity exercise.

This unflavored powder mixes easily with water or your favorite drink. Just use a shaker bottle for a smooth, lump-free mix. It’s NSF Certified for Sport, ensuring it’s free from banned substances.

Remember, store it in a cool, dry place to avoid melting or damage. Always follow the instructions for the best results in your fitness journey.

3. Klean Athlete Klean Creatine – Supports Muscle Strength, Performance & Recovery from Strenuous Exercise* – NSF Certified for Sport – 11.1 Ounces – Unflavored

Klean Athlete Klean Creatine boosts muscle strength and supports growth. It enhances energy for better workouts. This NSF Certified formula ensures clean, safe use.

It speeds up recovery after tough exercise. Fuel your body and perform at your peak with this unflavored, easy-to-use supplement.

4. Momentous Creatine Monohydrate Powder – Creatine Powder – Supports Strength, Lean Muscle, & Recovery for Men & Women – NSF Certified for Sport – 5 g per Serving – 90 Servings

Momentous Creatine Monohydrate Powder is a powerful supplement for men and women. It supports strength, lean muscle, and recovery.

This creatine powder boosts energy levels, enhances muscle performance, and improves cognitive function. It mixes easily with no taste, making it perfect for post-workout routines.

Trusted by pros, this NSF Certified for Sport powder is tested for purity. It maximizes physical capabilities, supports neuroprotection, and enhances memory.

5. THORNE Creatine – Micronized Creatine Monohydrate Powder – Support for Muscles & Cognitive Function* – for Women & Men – Unflavored – NSF Certified for Sport – 5 g per Serving – 180 Servings

THORNE Creatine is a micronized creatine monohydrate powder designed to support muscle growth and boost energy levels. It’s unflavored and NSF Certified for Sport, making it safe for athletes.

This supplement promotes lean body mass, enhances muscle endurance, and supports brain function. It’s trusted by professionals and easy to use.

With 5 g per serving and 180 servings, it’s a reliable choice for men and women. Thorne is the #1 recommended clinical brand, ensuring quality and safety.

6. THORNE Creatine – Micronized Creatine Monohydrate Powder – Support for Muscles & Cognitive Function* – for Women & Men – Unflavored – NSF Certified for Sport – 5 g per Serving – 90 Servings

THORNE Creatine is a micronized creatine monohydrate powder designed to support muscles and cognitive function. It’s unflavored and NSF Certified for Sport, making it safe for athletes.

This supplement promotes lean body mass and boosts muscle endurance. It also enhances power output during workouts. Each serving provides 5 grams of creatine, with 90 servings per container.

Creatine improves cellular energy production, helping your body perform better. It’s trusted by 100+ professional sports teams and recommended by health-care practitioners. Perfect for both women and men seeking quality and reliability.

7. THORNE Creatine – Micronized Creatine Monohydrate Powder – Support for Muscles & Cognitive Function* – for Women & Men – Unflavored – NSF Certified for Sport – 5 g per Serving – 30 Servings

THORNE Creatine is a micronized creatine monohydrate powder designed to support muscles and brain function. It’s unflavored and NSF Certified for Sport, making it safe for athletes. Each serving provides 5 grams of creatine, with 30 servings per container.

This supplement helps build lean muscle mass and boosts exercise capacity. It also supports cellular energy production, helping your body perform better during workouts.

Creatine isn’t just for muscles—it also enhances cognitive function. Trusted by 100+ professional sports teams and U.S. National Teams, THORNE is a reliable choice for fitness and health.

8. Nordic Naturals Ultimate Omega-D3 Sport, Lemon – 60 Soft Gels – 1480 mg Omega-3 + 1000 IU Vitamin D3 – NSF Certified – Supports Muscle, Bones, Focus & Endurance – 30 Servings

Nordic Naturals Ultimate Omega-D3 Sport is a powerful supplement that combines high-potency fish oil with vitamin D3. It supports strong bones, muscle activity, and joint mobility.

This product is NSF Certified for Sport, ensuring it’s free of banned substances. It’s also easy to absorb and has a great lemon taste, with no fishy burps.

Purity guaranteed, non-GMO, and third-party tested. Gluten and dairy free, with no artificial colors or flavors.

9. THORNE – Iron Bisglycinate – 25 mg Iron Supplement for Enhanced Absorption Without Gastrointestinal Side Effects* – NSF Certified for Sport – Gluten-Free – 60 Servings

Thorne Iron Bisglycinate gives you 25 mg of iron in each capsule. It’s easy to absorb and won’t cause constipation. This gentle formula is great for daily use.

Low iron levels can make you feel weak, tired, or dizzy. Nearly 1 in 3 adults in the U.S. may have this issue. This supplement helps boost your energy and supports healthy blood.

It’s NSF Certified for Sport, so athletes can trust it. Thorne is chosen by pros and recommended by experts. It’s gluten-free and safe for most diets.

10. Sports Research® Creatine Monohydrate Powder w/Creapure® – Gain Lean Muscle, Improve Performance, & Support Workout Recovery* – 5g German Creatine · NSF Sport · Easy Mixing – 90 Servings (Unflavored)

Sports Research® Creatine Monohydrate Powder helps you build strength and recover faster. Made with Creapure®, it supports ATP production for better workouts.

This unflavored powder is 100% German Creatine Monohydrate, free from fillers or additives. It mixes easily and is perfect for athletes and lifters.

90 servings in each jar. Trusted quality, tested for purity, and affordable.