FREE Shipping On All U.S. Orders
4.95/5 Based on 100+ reviews
'I hit +2 reps on almost every lift.' - Isaac S.
Stop Leaving Reps on the Table
Complete caffeine-free intra-workout drink mix for demanding lifting sessions.
Carbs, EAAs, and electrolytes in one scoop.
Mix it in your shaker and sip while you lift.
30 day money-back guarantee
Third-party tested
Formulated by a world-famous biohacker.
What Real-Time Fuel Does to Performance
More Power
Push heavier. Hit more reps. Finish strong.
Faster Recovery
Reduced Fatigue
For the Workouts That Demand More
When leg day is kicking your ass.
Squats, presses, lunges
—and work still ahead.
When your session keeps going.
More exercises. More sets.
A longer stretch between meals.
When you train before breakfast.
Bring carbohydrate fuel
into an early session.
When you're pushing training volume.
Give your fueling the same attention
you give your program.
They hit PRs they didn't think were possible.
Trusted by Hundreds of Lifters Who Refuse to Train Empty
4.95 out of 5 Based on 100+ reviews
Spartan Fuel – All-in-one intra/pre-workout
Sustained energy through your entire workout
No mid-session crash or fatigue
Faster recovery between sets and sessions
Flavor:
Watermelon
Pineapple
Quantity:
Single Tub
$84.99
$99.99
30 Servings
Most Popular
2-Tub Bundle
$144.49
$169.98
Extra 15% Off
Best Value
3-Tub Elite Stack
$203.98
$254.97
Extra 20% Off
Purchase Options:
FREE Shipping on all U.S Orders
30-Day Money-Back Guarantee
Third-party tested
How to use
Powered by the Intrabolic Engine™
Real-time nutrient delivery during your workout, not before, not after.
Most lifters fuel before they train or after they recover. That leaves a massive gap, the time when your muscles are actively breaking down and screaming for nutrients.
The Intrabolic Engine™
Floods your system with fast-digesting carbs, essential amino acids, and electrolytes exactly when your body is most receptive. You're not just preventing fatigue, you're fueling performance in real time, set by set.
What’s in every scoop
Every compound was selected for one purpose: maximizing performance during training.
Essential Amino Acids (EAAs):
Prevent muscle breakdown and fuel protein synthesis while you train.
Keep muscles firing and prevent cramping mid-session.
Full ingredient list
* No caffeine or stimulants
A COMPLETE FORMULA. EVERY DOSE DISCLOSED
Amounts below are for two scoops (80 g). Compare one and two scoops in the table below.
42 g
CARBOHYDRATES
Carbohydrate fuel for demanding sessions.
12.5 g
ESSENTIAL AMINO ACIDS
All nine EAAs, including 4 g leucine.
750 mg
SODIUM
Plus 300 mg potassium and 278 mg magnesium.
30 one-scoop servings / 15 two-scoop servings per tub.
Also in two scoops: 3.5 g citrulline
• 2 g taurine • 3 g betaine
• 1.5 g L-carnitine • 20 mg PQQ
Full Ingredient List
Ingredient
1 Scoop (40G)
2 Scoops
(80 g)
Practical Role
Total carbohydrates
21 g
42 g
Carbohydrate fuel for your workout
All nine EAAs—total
6.25 g
12.5 g
Essential building blocks for muscle protein synthesis
Leucine—included in EAAs
2 g
4 g
Involved in signaling muscle protein synthesis
Sodium
375 mg
750 mg
Fluid balance and replacement of sodium lost through sweat
Potassium
150 mg
300 mg
Normal muscle contraction and nerve function
Magnesium
139 mg
278 mg
Normal muscle function and energy metabolism
Citrulline
1,750 mg
3,500 mg
Precursor to arginine for nitric oxide production
Taurine
1,000 mg
2,000 mg
Cellular fluid balance and normal muscle function
Betaine / TMG
1,500 mg
3,000 mg
Cellular water balance and methyl-group metabolism
L-carnitine
750 mg
1,500 mg
Fatty-acid transport for energy metabolism
PQQ
10 mg
20 mg
Studied for mitochondrial function; exercise evidence remains limited
D-ribose
2,500 mg
5,000 mg
Component of molecules involved in cellular energy
L-ornithine
1,000 mg
2,000 mg
Involved in the urea cycle
Calcium HMB
750 mg
1,500 mg
Leucine metabolite studied for muscle preservation
Phosphatidic acid
750 mg
1,500 mg
Involved in cellular signaling
Alpha-ketoglutarate
250 mg
500 mg
Intermediate in energy metabolism
Epicatechin
12.5 mg
25 mg
Plant compound studied for vascular and muscle-related effects
Clinical doses.
No fillers.
No proprietary blends.
Completely transparent.
Third party tested.
Clinical doses.
No fillers.
No proprietary blends.
Completely transparent.
Third party tested.
One Scoop Replaces 10 Supplements.
Stop overpaying for an overcomplicated stack.
Spartan Fuel gives you everything in one clinically dosed scoop—and saves you hundreds of dollars in the process.
Or use 2 scoops for maximum results
Carb powder: $35
D-ribose: $29
PQQ: $24
Taurine: $18
Total: $270+
Stop overpaying for an overcomplicated stack.
Spartan Fuel gives you everything in one clinically dosed scoop—and saves you hundreds of dollars in the process.
The Difference Is Visible
Hundreds of lifters have made the switch. Bigger pumps. Better endurance. Faster gains.
Thousands of workouts powered by Spartan Fuel
How We Stack Up
Feature
Clinically dosed ingredients
All-natural, research-backed ingedients
No artificial sweeteners
Money back guarantee
Fast-digesting carbs
Full-spectrum EAAs
Electrolyte matrix
Transparent label (no blends)
Third party tested
Formulated by biohacker
Price per serving
Try It for 30 DAYS. Risk-Free.
If you don't feel stronger, more energized, and better recovered after 30 days, we'll refund you. No questions asked.
Questions? We've Got Answers.
When do I take it?
Mix one scoop with 20-30oz of water and sip throughout your workout. You can also use it as a pre-workout 15-20 minutes before training.
Does it contain stimulants or caffeine?
No.
Will I actually feel a difference?
Yes. Most lifters report sustained energy, better pumps, and reduced fatigue within their first session. If you don't, we'll refund you.
Is this just overpriced Gatorade?
Not even close. Gatorade is sugar and electrolytes. Spartan Fuel delivers clinically dosed carbs, EAAs, and electrolytes designed for muscle performance—not casual hydration.
I already use a pre-workout. Do I need this?
Pre-workouts spike energy before you train. Spartan Fuel fuels you during, when your muscles are actively working and most receptive to nutrients. Use them together for maximum performance.
Fuel Like the 1%
Limited batch production. Restocks monthly.
What Lifters Are Saying
Ready to Train at Your Peak?
4.95 out of 5 Based on 100+ reviews
Spartan Fuel – All-in-one intra/pre-workout
Sustained energy through your entire workout
No mid-session crash or fatigue
Faster recovery between sets and sessions
Flavor:
Watermelon
Pineapple
Quantity:
Single Tub
$84.99
$99.99
30 Servings
Most Popular
2-Tub Bundle
$144.49
$169.98
Extra 15% Off
Best Value
3-Tub Elite Stack
$203.98
$254.97
Extra 20% Off
Purchase Options:
FREE Shipping on all U.S Orders
30-Day Money-Back Guarantee
Third-party tested
How to use