Spartan Fuel

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$99.99

Fuel Your Performance with Spartan Fuel

Boost your muscle growth, endurance, and recovery with every rep. Spartan Fuel is scientifically formulated to support peak performance, enhanced hydration, and explosive muscle growth. Whether you're pushing through your toughest workouts or recovering from them, Spartan Fuel has the perfect combination of essential electrolytes, amino acids, and energy-boosting ingredients to take your training to the next level.

 

KEY BENEFITS:

Maximized Hydration: Stay fueled with our advanced electrolyte blend.

Muscle Recovery: Essential EAAs and SEAA Complex to fuel recovery.

Energy & Focus: Clean, sustained energy with zero crashes.

Increased Pumps & Strength: Enhanced performance with mTOR activators.

Get the energy, focus, and muscle growth your body needs to crush your goals.

Flavor
Quantity

Fuel. Grow. Recover.

 

Spartan Fuel is built for serious lifters who demand more from their intra-workout:

Each scoop powers you with a full-spectrum EAA matrix, precision mTOR activation, clean performance carbs, and critical electrolytes — everything your body demands for unstoppable performance and faster recovery.

 

✅ Spike muscle protein synthesis mid-session
✅ Maintain peak strength and intensity
✅ Hydrate deeper for longer lasting endurance
✅ Recover faster and hit harder every workout

 

No fillers. No junk. Just pure fuel for growth.

What’s Inside Spartan Fuel?

1. EAA Complex (Essential Amino Acids)

Lysine (1g): Boosts muscle protein synthesis and accelerates tissue repair.
Threonine (1g): Critical for protein balance and muscle growth support.
Phenylalanine (500mg): Enhances mood and drives protein synthesis.
Histidine (500mg): Supports muscle recovery and immune function.
Tryptophan (500mg): Reduces fatigue and elevates serotonin for better workouts.

2. SEAA Complex (Semi-Essential Amino Acids)

Taurine (2g): Reduces muscle fatigue and stabilizes electrolytes.
L-Carnitine (1.5g): Converts fat into usable energy and improves recovery.
Citrulline (3.5g): Maximizes blood flow, pumps, and endurance.

3. mTOR Activators

Methionine (1g): Fuels anabolic muscle growth.
Leucine (4g): Directly triggers mTOR for maximum protein synthesis.
Isoleucine (2g): Enhances energy production and recovery.
Valine (2g): Improves muscle endurance and repair.
HMB (Calcium) (1.5g): Cuts muscle breakdown and accelerates strength gains.
Phosphatidic Acid (1.5g): Amplifies mTOR activation for extreme growth.
Alpha-Ketoglutarate (500mg): Boosts energy production and reduces fatigue.
Epicatechin (25mg): Inhibits myostatin to unlock new muscle growth.
TMG (Trimethylglycine) (3g): Supercharges hydration and power output.

4. Performance Carbohydrates

Cluster Dextrin (15g): Sustained clean energy with rapid glycogen refueling.
Dextrose (15g): Fast insulin spike to drive nutrients into muscles.
Fructose (10g): Steady liver glycogen replenishment for longer energy.

5. Mitochondrial Function & ATP Synthesis

D-Ribose (5g): Direct ATP booster for raw strength and endurance.
L-Ornithine (2g): Detoxifies ammonia to delay fatigue.
Magnesium Malate (2g): Supports deep energy production and prevents cramps.
PQQ (20mg): Sparks new mitochondria for greater output and recovery.

6. Electrolyte + Hydration Matrix

Sodium (750mg): Keeps nerves firing and prevents cramps.
Potassium (300mg): Supports muscle contractions and endurance.

Built for Warriors, Backed by Science.

🏋️‍♂️Explosive Muscle Growth

Fuel anabolic pathways and maximize lean gains.

⚡Endless Endurance

Sustain high output with advanced ATP and carb blends.

💧Elite Hydration Support

Replenish electrolytes and prevent mid-workout crashes.

🔥 Accelerated Recovery

Minimize soreness and rebuild stronger between sessions.

Built for Warriors, Backed by Science.

🏋️‍♂️
Explosive Muscle Growth

Fuel anabolic pathways and maximize lean gains.


Endless Endurance

Sustain high output with advanced ATP and carb blends.

💧Elite Hydration Support

Replenish electrolytes and prevent mid-workout crashes.

🔥 Accelerated Recovery

Minimize soreness and rebuild stronger between sessions.

Customer Reviews

Based on 24 reviews
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P
Phys
The Search Stops Here For An Intraworkout Blend

The supplement market is an overwhelming landscape to navigate - mostly full of junk. For more than a decade & a half, I've tried more than 15 different intraworkout products: Spartan Fuel finally delivers what I need without any jitters, crashes, or negative side effects.

The most recent experience I had with Spartan Fuel paints a good picture of the superior product quality. When I used for a lower resistance training session, I could tell my body was getting more of the fuel it needed to support some of the final sets of compound exercises like hack squats & squat presses - particularly at the end of my session. Anyone focused on hypertrophy will know that delivering those essential amino acids late in a workout can be tough, but pays invaluable dividends for both muscle growth & post-workout recovery. Spartan Fuel did precisely this unlike many others.

An additional factor I take seriously in an intraworkout product: hydration capability. As I get older, I've started to truly understand the importance of hydration for performing & injury-proofing. When I'm not properly hydrated, I often feel fatigued & crash at the tail end of longer sessions. The electrolytes blend kept me dialed in with proper nervous system support & energized for a 75-min leg session without the experience of any crash I've experienced in the past around 45 min mark.

As far as the flavor, the balanced natural sweetness of Spartan Fuel pineapple is not overpowering & exactly what many other intraworkout products I've tried in the past had been missing. It possesses a subtle tartness & delivers an authentic tropical taste.

Spartan Fuel not only checks the boxes of a good intraworkout product - it dominates the market! A no brainer I'll be coming back!

R
Rob
My Search For Intraworkout Fuel Stops Here

I've been using Spartan Fuel for a couple weeks. As a long-time skeptic of intra-workout formulas, I can confidently state the difference between training with & without an efficaciously dosed product like Spartan Fuel isn't subtle.

Prior to this, I was a proponent of getting pre-workout nutrition dialed in and that was enough. But compare that method to intra-workout fuel, and it's night and day. The former leaves you fatigued & glycogen-depleted by mid-workout, while the latter provides the sustained energy & hydration to power through the rest of your session with still-high intensity.

And it's stacked with the right components for the perfect pump/hydration/energy matrix:

* 3,500mg citrulline to increase nitric oxide for maximizing the pump
* 2:1 sodium-to-potassium ratio for hydration
* 2,000mg taurine for muscular function
* 9g essential amino acids for the mTOR pulse

Spartan Fuel has my highest recommendation for anyone looking to level up their intense resistance training sessions.

G
G.
Grimhood Approved

I had been looking for a solid pre and intraworkout that included amino acids, simple carbohydrates, and electrolytes for several months, and randomly came across Spartan Fuel on my Twitter/X timeline one day.

Let me tell you… I have the highest of standards of what I believe to be a properly formulated supplement, and had been putting together my own pre/intraworkout before coming across this one because no others satisfied the very specific requirements I was looking for. Spartan Fuel goes above and beyond what I was looking for, it includes actually active dosages of each ingredient. It not only feels, but also tastes, phenomenal to really push yourself to your physical limit with each limit.

Will definitely be a customer for life.

M
Maker
Shockingly effective. Probably won't ever lift without it again.

I've never been much of a user of intraworkouts before because it's always seemed like I take a preworkout, a post-workout, why take an intraworkout too it just always seemed like a gimmick to sell more supplement products.

Well I stand absolutely corrected after using this. Out of curiousity I used it during a pretty intense lifting day about halfway through the workout. I mentally kept track of how I was feeling energy/strength wise over the next 15/20 minutes and was genuinely shocked. It basically refreshes you to near fresh status fatigue wise, I'm guessing because it refills your ATP or something, I'm not sure.

Whatever it does, the results speak for themselves, this supplement has made leg days so much better because I can lift during the second half of the workout with almost the same intensity I lifted with during the first half.

One other thing I've found it useful for is as an early morning fuel before lifting since I've recently started lifting before work and don't really feel like eating much solid food beforehand that early in the morning. You get the energy of eating breakfast before lifting, but available much more quickly and simply.

R
Rodney
Excellent product!!

I sampled the Spartan Fuel preworkout while it was still in developmnent and WOW, what a kick this sproduct has. I got a nice beta alanine buzz from it, which I enjoy, and a great citrilline pump! The flavor was really good, not too sweet, not too sour, just enjoyable to drink and I felt energized and at the top of the world for the entire workout. I'll definitley be purchasing more of this product in the future and I think anyone whos' considering it should give it a try. Highly recommended.

Why Spartan Fuel Dominates Other Intra-Workouts

Built for lifters who demand real results—not watered-down formulas and hype.

Other Intra- Workouts

Clinically-Dosed Muscle-Building Formula

Noticeable Effect on Energy and Performance 

All-natural, research-backed ingrediets

Great Taste

Instant & Long-Lasting Energy

Everything You Need in One Scoop

Third-Party Tested

Money Back Guarantee

Frequently Asked Questions

💪 What exactly is Spartan Fuel?

Spartan Fuel is a high-performance intra-workout formula designed to drive muscle growth, skin-splitting pumps, laser focus, faster recovery, and elite hydration — all in one powerful scoop. Created by a world-renowned biohacker, it’s built with a never-before-seen combo of clinically dosed ingredients engineered to push human performance beyond the edge.

🕒 When should I take it?

Start sipping it 15–20 minutes before your workout to prime your system, then finish it during training to stay locked in. You can even use it post-workout to boost recovery and hydration. Use it how you train — intense, flexible, and built for results.

💥 Can I stack it with pre-workout or creatine?

Hell yes. Spartan Fuel stacks clean with pre, creatine, or other supps. No ingredient overlap, no BS — just raw synergy that amplifies your entire stack.

⚡ Will it make me jittery or crash?

Not a chance. Spartan Fuel is 100% stimulant-free — no caffeine, no crash, no compromises. Just clean, sustained energy and performance.

🏋️ Is it only for advanced lifters?

If you're serious about growth — it’s for you. Whether you’re new and obsessed or already a savage in the gym, Spartan Fuel gives you the edge to level up faster.

🧬 What makes it different from other intra-workouts?

Most formulas are just hype in a tub. Spartan Fuel is the only one built with cutting-edge biohacking science and real clinical doses — no fluff, no fillers, just results. Nothing else hits like it.

📆 Can I take Spartan Fuel every day?

100%. It’s made to be taken daily or every time you train. If you're in the gym, Spartan Fuel belongs in your bottle.

🌱 Is it vegan and gluten-free?

Yes — Spartan Fuel is vegan, gluten-free, and made with clean, high-quality ingredients. Hardcore performance without the garbage.