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GAT Nitraflex Review - 11 Things You Need to Know

GAT Nitraflex is “clinically tested, high-intensity pre-training formula with potent ingredients to help magnify energy, alertness, strength, stamina, pumps and enhance testosterone during workouts.” The company claims that its supplement, which is said to boost athletic performance if taken right before a workout, has been clinically-tested. While we found clinical studies on ingredients such as beta-alanine, we could not find any clinical trials connected to Nitraflex itself.

So, we put our team of researchers on the job, asking them to dig into GAT Nitraflex’s ingredients, potential side effects, scientific studies, and all available user comments and reviews.  We then condensed this information to give you the Bottom Line on the product.

GAT Nitraflex can be purchased through their Official Site.

GAT Nitraflex Readers: Noom is offering our readers a free trial, for a limited time. Click here for this special offer!

What is GAT Nitraflex?

The GAT Nitraflex is a dietary supplement that is supposed to be consumed before working out.

It is supposed to promote hyperemia, or better blood irrigation in the body, and enhance testosterone availability. Apparently, this results in increasing energy, awareness, strength, stamina and even sexual performance.

What Is GAT Nitraflex?

This supplement is in the form of a powder to be drunk diluted in cold water, half an hour before you begin your exercise routine. It is available in several different flavors, such as:

  • Blue Raspberry
  • Pink Lemonade
  • Peach Mango
  • Black Cherry
  • Green Apple
  • Watermelon
  • Fruit Punch
  • Orange
  • Pineapple
  • Pina Colada
  • Grape
  • Peach Iced Tea

This product is marketed as a supplement aimed at men exclusively as a testosterone enhancer. It may be bought through several websites over the internet but also at brick and mortar stores that carry it.

It is manufactured by GAT Sport, a company specializing in manufacturing dietary supplements that have been in the marketplace for about two decades.

The company claims that all their nutritional supplements are manufactured in the US and are done in state of the art facilities with tight quality control measures and close scrutiny by the relevant agencies.

GAT Nitraflex Competitors

Cellucor C4
Pre Jym

How Did GAT Nitraflex Start?

GAT Sports was established in 2012. They offer products to health enthusiasts that wish to boost their physical performance during their daily work out.

While this product may be used on its own, GAT Sports takes pride in advertising their whole family of merchandises as highly complementary. This means you could use it stacked along with other products of the company to further restructure different aspects of your health and mental and physical performance.


GAT Nitraflex Claim

According to the manufacturer, this powder will give you the kind of nutrition you need to boost your mental and physical wellbeing. This may allow you to be more active and take better advantage of your workout sessions.

The way the supplement works is by giving you a formula rich in amino acids as well as other micronutrients, vitamins, and caffeine.

A very bold claim by the manufacturer is that GAT Nitraflex is a clinically tested product. This is highly unlikely when it comes to dietary supplements, and they offer no documentation to back up their claim in the form of peer-reviewed clinical trials or studies.

This statement is suspicious, and until the manufacturer provides some scientific evidence, it should not be taken too seriously.

One further claim is about the GAT Nitraflex drug test which says that if you are a serious athlete using this resource to improve your performance, none of the chemicals in the formula will cause you to fail a doping test.


GAT Nitraflex Ingredients

The GAT Nitraflex ingredients list is not too long. Some of the components are just micronutrients. Ingredients include:

  • Vasoactive Arginase-Regulating NO Precursor Complex: Citrulline, Citrulline Malate, L-Arginine Malate, L-Arginine Alpha-Ketoglutarate, Resveratrol and Pterostilbene.
  • Acute Energy, Focus, Intensity, Neuromodulating, Endurance Complex: Beta Alanine, Caffeine, DMAE Bitartrate, N-Acetyl L-Tyrosine, Theanine, Raulwolfia Canescenes.
  • Clinically-Studied Testosterone-Enhancing Complex: Calcium Fructoborate.

To understand the possible benefit and side-effects of this product let’s take a closer look at the most relevant components in the list in some detail.

L-Citrulline Deanol

This is a chemical known as a non-essential amino acid. It is transformed into l-arginine and nitric oxide in the body.

It’s considered to be important for health and vascular health in general. Nitric oxide can relax your arteries and improve your overall blood flow.


Boron, most commonly in the form of boric acid, is an important mineral for the human body. It seems to enhance the way the body handles other important minerals, like phosphorus, magnesium, and calcium.

GAT Nitraflex Ingredients

It is used to build strong bones, increase testosterone, improve muscle coordination and thinking skills, and treat vaginal yeast infections.


Caffeine is most popular as a stimulant for the brain as it improves mental alertness. However, it also has many other uses in combination with painkillers.

It is widely used for weight loss. It is cheap and legal to consume everywhere, particularly in the form of hot coffee or hot tea.


So far, however, no definitive evidence has been found to support the claim that Resveratrol itself may help in improving or preventing any health condition in humans.

GAT Nitraflex And Weight Loss

Any GAT Nitraflex review on bodybuilding will tell you that this is a product that is not marketed as a weight-loss supplement or pill. That is not what it promises, and you should not expect those extra pounds to go away by including this in your diet.

This product does make several other promises, such as increasing your testosterone, physical and mental energy, and overall well-being. This may make it easier for you to start exercising more and eat better.


How To Use (Take) GAT Nitraflex?

The correct way to take advantage of GAT Nitraflex is very simple and straightforward.

You are simply supposed to take a scoop of the powder and dissolve it in 10 ounces of water and drink it thirty minutes before you start with your daily workout routine.

Even in days that do not include engaging in a workout, you should still take the same amount of GAT Nitraflex in the morning, with water.

Side Effects

GAT Nitraflex Side Effects

To understand the GAT Nitraflex pre-workout side effects correctly, we need to review again the GAT Nitraflex ingredients and the side-effects that are commonly associated with each ingredient.

GAT Nitraflex Side Effects

In some GAT Nitraflex testosterone reviews, users have reported anxiety, irritability, sweating, nervousness, insomnia, and nausea by ingesting this product.


Boron is considered to be safe when taken in the proper amounts needed daily by the body (20mg). However, since it has an action like that of estrogens, it should be avoided by people suffering from health conditions sensitive to hormonal imbalance and those suffering from any kidney problems.


There are no side-effects associated with Resveratrol, but research is still lacking.


As stated before, the body produces its own arginine normally, and most people have enough of it already. This means it’s a naturally occurring substance that is considered very safe, even in supplementation. Side effects of this ingredient are rare, but they could produce diarrhea, nausea, and cramps.

Product Warnings

GAT Nitraflex Product Warnings

The manufacturer provides with several warnings about this product’s use. These include:

  • Intended strictly for people over 18 years of age.
  • Every scoop (a single serving) has 325mg of caffeine in it, so this should not be taken along with other caffeine products or stimulants.
  • Not to be taken during pregnancy or nursing.
  • Do not ingest along with anti-inflammatory drugs or aspirin.
  • Rest for a full week from ingesting this product after having completed eight weeks of consumption.
  • Discontinue using this product at least two weeks before any surgical procedure.

GAT Nitraflex Product Warnings

While most of these warnings are more or less the standard warnings required by the law to be included with this kind of product it is still good to see that the manufacturer tries to make the prospective user aware of the high amount of caffeine present in the supplement.

Although GAT Nitraflex does not contain caffeine anhydrous, excessive amounts of caffeine can still be harmful.

According to one study published in StatPearls found that excessive caffeine consumption may lead to increased urination, anxiety, gastrointestinal distress, restlessness, and increased heart rate.

GAT Nitraflex Alternatives

The market for dietary supplements that claim to enhance physical and mental performance by raising testosterone levels is quite wide.

If you take the time to check the GAT Nitraflex reviews on Amazon, you will find several other alternatives just a click away.

If you are interested in exploring other options, here are a few other products that claim results and benefits similar to those of GAT Nitraflex:

  • Redweiler
  • Profactor
  • Libido Max Red
  • Somatomax

What Users Are Saying

“I have been using GAT Nitraflex for two years now and it always delivers. Ever since DMAA was banned and pre-workouts like Jack3d’s formula were changed up, I wasn’t ever able to find a good pre-workout until I tried out Nitraflex. It hits me just right and gives me the workouts I used to have with the old school pre-workouts. I stack it with L-arginine and L-citrulline. Gives me good focus, energy and no crash effect. Try it out if you haven’t.”

“Product is too strong for my stomach and made me feel sick when I took it. I’ll probably never buy this again.”

“I bought this with high hopes because of the great reviews this product gets. Unfortunately, this preworkout does nothing for me. I feel no different and experience no gains. I’m not saying it’s a bad product, it just doesn’t work for me. I love Jacked Factory’s Nitrosurge and that continues to be my supplement of choice. One positive is that it tastes good, like fruit punch!”

Bottom Line

The Bottom Line – Does GAT Nitraflex Work?

Now the moment you’ve been waiting for. This is our bottom line on GAT Nitraflex pre-workout drinks. Firstly, we do like that this fitness supplement contains some caffeine and amino acids. It’s also nice to see that several flavors are available. On the other hand, we have concerns about the adverse effects people have reported. Moreover, some customers clearly do not like the taste of this product.

If you really want to elevate physical performance and build lean muscle mass, we suggest you find a program that’s supported by positive user reviews and clinical research.

Among the best products we’ve seen this year is one called Noom. This program works with personalized meal plans and human coaching. At this point, we can’t find any negative user comments. Also, the customer remarks posted online show people are seeing solid results.

The makers of Noom are so excited about their product they’re offering every customer a free trial.

Learn More About Noom »
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GAT Nitraflex

What is in Nitraflex?

Nitraflex is a pre-training workout formula. It’s filled with high intensity ingredients, which help to improve stamina, strength, awareness, energy, and more.

What are the side effects of GAT Nitraflex?

Some individuals experienced nausea, insomnia, Nervousness, Sweating, Irritability, Anxiety and Paresthesia while using GAT Nitraflex.

Does GAT Nitraflex work?

With 4.3 stars out of 5 stars on Amazon, users state they feel energized.

What is the price of GAT Nitraflex?

The price $32.99 on the official website.

Where can I buy GAT Nitraflex?

GAT Nitraflex can be bought on Amazon, and bodybuilding websites.

Where can I buy GAT Nitraflex?

GAT Nitraflex can be purchased using their Official Site.

How should I take GAT Nitraflex?

30 mins before work out take one scoop and mix with 10 oz of water, for days you are not going to work out take one scoop in the morning with water.

How do I contact GAT Nitraflex customer service?

You can contact customer service by the contact us tab on their website.

Can I return GAT Nitraflex?

GAT Nitraflex bought through company website does not offer returns. If you buy at another shop their return policy may vary.

What are the most common complaints about GAT Nitraflex?

Some users of GAT Nitraflex did not like the upset stomach ache or the way they felt using product.

Does Nitraflex increase testosterone?

Although Nitraflex claims to enhance and boost testosterone, there is no indication it can actually increase testosterone hormone levels in the body.

What is Nitraflex used for?

GAT Sport claims Nitraflex can help boost energy, increase alerrtness levels, improve strength, and enhance testosterone during workouts.

When should I take Nitraflex?

On days you exercise, Nitraflex should be consumed 30 minutes before the workout. On non-training days, you can consume the supplement first thing in the morning or before any physical activity that day.

6 GAT Nitraflex Reviews

  • It's not bad, it works well but some some side effect
    Bobby (Verified Purchase)

    It’s not bad keeps me focused and energetic, just have to get over the pins and needles (slightly irratibility,scratching)feeling you get after ingestion. Only lasts a couple of minutes

  • What about the rest of ingredients?
    Rob (Verified Purchase)

    What happened to the rest of the ingredients? Isn’t the calcium fructoborate pretty relevant considering is the main ingredient for testosterone boosting?

  • Works Well
    Anonymous (Verified Purchase)

    I like Nitaflex, but I only use half the dosage, and not after 4pm..Energized, focus, and alert

  • FAZIL Sattar

    Me agree Mr faheem

  • Highly recommend
    Fahim (Verified Purchase)

    Good supplement for pre workout…

  • Joe Rec (Verified Purchase)

    Been using nitra flex since 2014, taste isn’t the best but it’s a preworkout, I’m not drinking it to quench my thirst. Works great definitely maximized my strength, great pump, but you have to cycle off after a while you’ll build a tolerance as your body does with anything that becomes routine. I limit my caffeine intake daily so that I feel the full effect of nitraflex. Helps when I’m studying too. Very very focused.