The Marathon Training Stack

Take your endurance to the next level with The Marathon Training Stack from Efectiv Nutrition. Specifically curated for runners and hybrid athletes, this comprehensive bundle provides the essential fuel needed to conquer high-mileage sessions and grueling race days.

 

Each product in the stack is designed to optimize energy levels, support muscle recovery, and maintain peak performance throughout your training cycle. Whether you are a first-time marathoner or a seasoned pro, our training stack removes the guesswork from your nutrition strategy.

 

Shop the range today and ensure your body has the high-quality support it deserves to go the distance and smash your personal best.

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18 products

EFECTIV® Whey Protein Powder | 60 Servings | Muscle Growth & Recovery
BESTSELLER

Whey Protein Powder | 60 Servings

Muscle Growth & Recovery

✓ High Protein
✓ Low Sugar
£59.99
EFECTIV® Creatine Monohydrate | 60 Servings | Strength & Performance
BESTSELLER

Creatine Monohydrate | 60 Servings

Strength & Performance

✓ 5g Creatine Monohydrate
✓ 3rd Party Tested
£14.99
EFECTIV® Hydration Electrolytes | 60 Servings | Recovery Support
BESTSELLER

Hydration Electrolytes | 60 Servings

Recovery Support

✓ 400mg Sodium
✓ 400mg Chloride
£14.99
EFECTIV® Vegan Protein Powder | 30 Servings | 100% Plant-Based
BESTSELLER

Vegan Protein Powder | 30 Servings

100% Plant-Based

✓ 23g Protein
✓ 0.1g Sugar
£21.99
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EFECTIV® Hybrid Creatine + Hydration | 30 Servings | Strength & Endurance
BESTSELLER

Hybrid Creatine + Hydration | 30 Servings

Strength & Endurance

✓ 5g Creatine
✓ Electrolytes
£19.99
EFECTIV® Project PUMP Pre-Workout | 40 Servings | Muscle Pump

Project PUMP Pre-Workout | 40 Servings

Muscle Pump

✓ Stimulant Free | Extreme Pump
✓ 190 kcal per bottle
£34.99
Package of Efectiv Grass Fed Whey Protein Isolate in Milky Chocolate flavor on a white background
NEW

Grass Fed Whey Protein Isolate | 66 Servings

Muscle Growth

✓ 27g Protein
✓ 0.4g Sugar
£64.99
EFECTIV® LEGACY Pre-Workout | 40 Servings | Energy, Focus & Performance

LEGACY Pre-Workout | 40 Servings

Energy, Focus & Performance

✓ Heavily Dosed Formula
✓ High Stimulant
£34.99
EFECTIV® KSM-66® Ashwagandha | 60 Servings

KSM-66® Ashwagandha

60 Servings

✓ Reduce stress and support relaxation
✓ Supports energy and overall wellbeing
£17.99
EFECTIV® ALPHA Male Support | 30 Servings | Testesterone Support

ALPHA Male Support | 30 Servings

Testesterone Support

✓ Natural Testosterone | Stress Relief
✓ 190 kcal per bottle
£29.99
EFECTIV® Clear Whey Protein Isolate | 20 Servings | Muscle Recovery

Clear Whey Protein Isolate | 20 Servings

Muscle Recovery

✓ 24g Protein
✓ 0.2g Sugar
£29.99
EFECTIV® PeakO2® Organic Mushroom Blend | 60 Servings | VO2 Max
NEW

PeakO2® Organic Mushroom Blend | 60 Servings

VO2 Max

✓ VO2 Max | Organic Mushrooms
✓ 190 kcal per bottle
£19.99
EFECTIV® MPS185 (with DL-185®) | 30 Servings | Muscle Builder

MPS185 (with DL-185®) | 30 Servings

Muscle Builder

✓ 2000mg DL185™
✓ Muscle Accelerator
£39.99
EFECTIV® EAA Essential Amino Acids | 30 Servings | Muscle Recovery
NEW

EAA Essential Amino Acids | 30 Servings

Muscle Recovery

✓ 8g EAAs
✓ 6g BCAAs
£14.99£19.99
EFECTIV® BUILD.AI (with PeptiStrong®) | 30 Servings | Muscle Builder

BUILD.AI (with PeptiStrong®) | 30 Servings

Muscle Builder

✓ 2.4g PeptiStrong
✓ Natural Muscle Builder
£29.99
Black container of 'the Sauce' pre-workout supplement with visible branding on a white background
NEW

The Sauce | CrossFit Pre-Workout

20 Servings

✓ 15g Carbohydrates
✓ 400mg Sodium
£29.99
EFECTIV® Legacy + Project Pump Stack
SALE

Legacy + Project Pump Stack

Sports Supplements

✓ High Stimulants
✓ Maximum Pump
£29.99£69.98
Legacy Pre-Workout [STIM]:
Project Pump [STIM-FREE]:
EFECTIV® CrossFit Athlete Stack
SALE

CrossFit Athlete Stack

Sports Supplements

✓ Pre-Workout
✓ Stay Hydrated
£49.98£54.97
Hybrid Creatine + Hydration:
The Sauce Pre-Workout:
Shaker Bottle 600ml:

Frequently Asked Questions

What supplements are best for marathon training?

Marathon training typically benefits from carbohydrate powders, electrolytes, and amino acids to support energy, hydration, and recovery during long-distance running.

How can I improve endurance for marathon training?

Improving endurance requires consistent training supported by proper nutrition, including carbohydrates for energy and supplements that help maintain hydration and recovery.

Are supplements necessary for marathon training?

While not essential, supplements can help support performance, hydration, and recovery, making it easier to stay consistent throughout a demanding training plan.

The Efectiv Promise

Service You Can Trust.

Rated 4.9/5 by 8,000+ Athletes

Lightning Fast Delivery

We know you need your fuel fast. Order before 4pm for same-day dispatch. Free UK delivery over £50.

30-Day Money Back

Train with confidence. If you don't feel the difference, return the unused portion for a full refund.

Gold Standard Quality

Every batch is third-party tested (ISO 17025) for banned substances and label accuracy.