How do I choose my first pre workout?

Start with a moderate-caffeine formula — CBUM Essential or Cellucor C4 Original are common first picks — and assess your tolerance with a half scoop. Jumping straight to a high-stim product like Godzilla or Woke AF is a rough introduction if you're caffeine-sensitive.

What's the difference between high-stim and regular pre workouts?

High-stim formulas (RedCon1 Total War, Ryse Godzilla, Bucked Up Woke AF) pack more caffeine and focus ingredients per scoop for experienced users. Standard formulas balance energy with pump and endurance ingredients like citrulline and beta-alanine, and are easier to take daily or train with in the evening.

When should I take pre workout?

About 20–30 minutes before training so the caffeine peaks as you start lifting. If you train within six hours of bedtime, consider a lower-stim serving so it doesn't interfere with sleep.

Pre workout vs. EAAs — do I need both?

They do different jobs. Pre workout is about energy and focus for the session; EAAs and aminos (see our Athletic Performance collection) support recovery and hydration during and after training. Plenty of customers use a pre workout on hard days only.

Does Fuel Supplements ship pre workout across Canada?

Yes — we ship Canada-wide from our BC warehouses, free over $100, with same-day pickup available in Port Coquitlam.

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GAT Nitraflex Pre-Workout 30 Servings

$59⁹⁹ CAD

Shipping calculated at checkout.

💲 30 servings · ~$2.00/serving

⭐ Earn ~53 Fuel Rewards points on this order ($1 = 1 point, after your 10% storewide discount)

✅ Health Canada NPN-approved formula

Flavor

Blue Raspberry Fruit Punch Black Cherry Grape Pink Lemonade

Product variants

Product Description

GAT Nitraflex Pre-Workout 30 Servings is a high-stimulant pre-training formula built around a 3700 mg Vasoactive Arginase-Regulating NO Precursor Complex, a 2621 mg Acute Energy, Focus, Intensity, Neuromodulating, Endurance Complex, and 325mg of caffeine anhydrous per serving. Available at fuelsupplements.com with fast Canada-wide shipping, this 30-serving tub is built for lifters who want strong energy, focus, and pump support heading into a session.

Key Benefits

325mg caffeine anhydrous for acute energy and drive
L-Citrulline and Nitrosigine (stabilized arginine silicate) in a 3700 mg complex to support pump and blood flow
Beta-Alanine, L-Tyrosine, and L-Theanine included in the Acute Energy, Focus, Intensity, Neuromodulating, Endurance Complex
Boron Citrate (200 mg) and Sodium Bicarbonate included on label
Only 10 calories and 2g total carbohydrate per serving
30 servings per tub

When to Use It

GAT Nitraflex is suited to lifters and gym-goers who want a strong-stimulant pre-workout ahead of high-output training — heavy lifting, conditioning, or sport sessions where focus and drive matter. Because it carries 325mg of caffeine per serving, it's best reserved for earlier in the day and paired with your usual training-day nutrition rather than stacked with other caffeinated products.

FAQ

How much caffeine is in GAT Nitraflex?

Each serving of this GAT Nitraflex formula contains 325mg of caffeine anhydrous, per the verified label.

How many servings are in this tub?

This size of GAT Nitraflex Pre-Workout provides 30 servings.

Does GAT Nitraflex contain stimulants?

Yes — it contains 325mg caffeine anhydrous along with other ingredients in its Acute Energy, Focus, Intensity, Neuromodulating, Endurance Complex, so it's intended for stimulant-tolerant users looking for high-intensity pre-training support.

Directions and Suggested Use

Mix one scoop with 250–300 ml of cold water and consume 20–30 minutes before training. Begin with half a scoop to assess tolerance.

Ingredients

Calories 10

Total Carbohydrate 2 g 1%*

Niacin 25 mg 156%

Calcium (as Calcium Silicate) 35 mg 3%

Sodium (as Sodium Bicarbonate) 82 mg 4%

Vasoactive Arginase-Regulating NO Precursor Complex 3700 mg **

L-Citrulline, Inositol – Stabilized Arginine Silicate (as Nitrosigine®), Resveratrol, Pterostilbene

Acute Energy, Focus, Intensity, Neuromodulating, Endurance Complex 2621 mg **

Beta-Alanine, L-Tyrosine, Caffeine Anhydrous, Dimethylaminoethanol (DMAE) Bitartrate, L-Theanine, Rauwolfia vomitoria Root Extract

Boron Citrate 200 mg **

*Percent Daily Values (DV) are based on a 2000 calorie diet.

**Daily Value not established.

Other ingredients: Citric Acid, Malic Acid, Silicon Dioxide, Sucralose, Natural and Artificial Flavors, Natural Sweetener Blend (Erythritol), Fructooligosaccharides, Natural Flavor).

Contains 325mg Caffeine Anhydrous.

Contains bioengineered food ingredients.

Ingredients shown for Blue Raspberry — other flavours/sizes may vary slightly; see the label photos in the product images.

Questions & Answers

How much caffeine is in GAT Nitraflex Pre-Workout?
GAT Nitraflex contains 325 mg of caffeine anhydrous per scoop, along with L-theanine and L-tyrosine in its focus complex. It carries a Health Canada NPN, meaning it has been reviewed and licensed for sale in Canada.

What are the main ingredients in Nitraflex?
The label lists a 3700 mg Vasoactive Arginase-Regulating NO Precursor Complex with L-citrulline, Nitrosigine, resveratrol and pterostilbene, plus a 2621 mg energy and focus complex with beta-alanine, L-tyrosine, caffeine anhydrous, DMAE bitartrate, L-theanine and Rauwolfia vomitoria root extract. It also includes 200 mg boron citrate and 82 mg sodium as sodium bicarbonate.

Does Nitraflex help with pump?
Yes, GAT Nitraflex includes Nitrosigine (inositol-stabilized arginine silicate) and L-citrulline in its NO precursor complex, ingredients used to support blood flow during training. Effects on pump can vary from person to person.

How many calories and how much sugar are in Nitraflex per scoop?
Each scoop of GAT Nitraflex has 10 calories and 2 g of total carbohydrate, sweetened with sucralose and an erythritol-based natural sweetener blend rather than sugar.

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Why these go together

Stimulant pre-workouts raise sweat rate — electrolytes protect hydration and pumps, while creatine compounds the strength work you're showing up to do.

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