G Fuel Review 2022 (Is It A Legit Pre Workout Supplement?)

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Updated January 4, 2022

G Fuel review

G Fuel is a pre-workout supplement that aims to give athletes all the energy and focus they need to be successful during their workouts. Moreover, it utilizes nitric oxide boosters to increase your strength and power output, which ultimately leads to faster muscle growth…but, it’s missing some very important ingredients. Read this G Fuel review to learn why it didn’t earn a spot on our elite list of the Top Pre Workout Powders.

The importance of maintaining a healthy diet and putting the proper amino acids and micronutrients into your body prior to enduring a laborious workout can’t be understated. All too often, however, folks tend to bypass pre-workout diet or supplements, which often leads to marginalized gains.

Benefits of G Fuel

The most commonly reported benefits of taking G Fuel may include…

  • Increased energy
  • Enhanced focus
  • Better pump and blood flow
  • Boost in endurance

What Is G Fuel?

G Fuel is one of many pre-workouts that can get you feeling pumped up and motivated. The main purpose of this particular product is to boost your energy levels and improve your pump, which it’s definitely capable of doing. However, the problem is that in our opinion, it’s not capable of doing much else.

Most pre-workout supplements include ingredients like Beta Alanine and Betaine Anhydrous in order to delay muscle fatigue, increase endurance, and boost your strength. We see these two ingredients specifically as absolutely vital. We don’t recommend any pre-workout that doesn’t include at least one of these two crucial performance enhancers, and unfortunately, G Fuel does not include either one.

G Fuel comes in the following flavors: Strawberry Shortcake, Peach Iced Tea, Rainbow Sherbert, Cherry Limeade, Lemonade, Tropical Rain Tub, FaZeberry, Blue Ice, Kiwi Strawberry, Watermelon, Peach Mango, Pink Lemonade, Green Apple, Blood Orange, Fruit Punch, Mystery Flavor, Lemon Lime, Grape, Pineapple, Coconut, and Orange.

Fun Fact: G Fuel has the most flavor options of any pre-workout supplement on the market.

How Does G Fuel Work?

G Fuel works by blending together different amino acids, vitamins, herbs, and nootropics in order to create a formula that can help provide your body with energy, and your mind with laser-sharp focus. The use of these types of ingredients ensures that you’re able to maintain high energy and concentration levels during your workout, but as we said before, that’s pretty much all this supplement can accomplish for you in our opinion.

G Fuel Ingredients

The following are the primary G Fuel ingredients:

  • Taurine
  • L-Citrulline
  • Caffeine
  • Glucuronolactone
  • L-Carnitine
  • Velvet Beans (Mucuna Pruriens) Seed Extract
  • L-Tyrosine
  • Adenosine
  • Triphosphate Disodium Salt
  • Toothed clubmoss Aerial Parts Extract
  • Bacopa Leaf Extract
  • Antioxidant Complex


L-Citrulline is the precursor to L-Arginine, which is the precursor to nitric oxide. While L-Citrulline and L-Arginine are both amino acids, nitric oxide is a compound released naturally by the lining of the blood vessels. It is responsible for helping increase blood flow and improve your circulation. This can lead to an increased rate of nutrient delivery to muscles in need of amino acids and oxygen.


An extremely popular stimulant that many people cannot live without. It can help improve your mood, elevate your focus, and also improve your athletic performance.


This amino acid has promise as a natural fat burner. It helps boost your body’s natural abilities to burn fat for energy through the mitochondria. (source)


Another amino acid in the blend, Tyrosine is responsible for helping improve your mental and physical performance. It is the precursor of dopamine and norepinephrine.

Stacking Pre Workout With Protein Powder

If you are looking to achieve results as quickly as possible, combining (or stacking) different types of supplements can help make a big difference. Pre-workout helps you break down your muscles while you are working out, while the protein powder can help make sure that your muscles are replenished with the nutrients they need to properly heal and grow after your workout is complete.

In other words, pre-workout serves as your muscles’ performance fuel, while protein powder serves as your muscles’ recovery and growth formula. A high-quality protein powder delivers 25 grams of protein and a considerable dose of branched chain amino acids directly to your muscles after your workout, which makes a world of difference in the recovery process.

The Pros

  • Includes a great nitric oxide booster
  • Has potential to increase testosterone levels
  • Can improve ability to focus and concentrate

The Cons

  • Not a super effective formula overall
  • Missing many key ingredients such as beta-alanine and betaine anhydrous

Is G Fuel Worth It? Our Conclusion

G Fuel has a super impressive nutrition label overall. It utilizes nootropics, nitric oxide boosters, and endurance enhancers. However, we felt a couple of the dosages were too small, and it doesn’t include BCAAs. For these reasons, we don’t see it as a top of the line pre-workout powder. To find out which supplements we prefer over this one, be sure to view our list of the Top 10 Best Pre Workout Supplements.

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Joe Costello CNC
Certified Nutrition Coach (CNC)
Joe Costello is a National Academy of Sports Medicine (NASM) Certified Nutrition Coach, author, and internet blogger. Joe has more than 10 years of experience in the sports nutrition industry and over 3 years of experience as a supplement and nutrition blogger. As a Certified Nutrition Coach who specializes in dietary supplements, Joe strives to deliver accurate, comprehensive, and research-backed information to his readers.

You can find more of Joe’s work including his E-Books about fitness and nutrition at his official website joecostellonwc.com, or connect with him on LinkedIn, Facebook, Instagram, Vimeo, or YouTube. Joe Costello is one of the founders of TheSupplementReviews.org and years after the creation of the site, partnered with TEK Naturals, a nutritional supplement company.