4 gauge pre workout is one of the best pre workout supplements
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4 Gauge Pre Workout Review

Note: This is just a review. Visit the official 4Gauge Pre Workout website here: www.4Gauge.com

Every year, men and women all over the country have the incredible dream of joining the military.

The bad news is that many of these same people struggle with the height and weight requirements the U.S. armed services need for enlistment.

Not much can be done for the height component, which ranges from 58 to 80 inches. As for weight, however, a lot can be changed.

With the right workout supplements, training, and hard work, anyone can become fit enough to join the Army, Marines, Navy, Air Force, or Coast Guard.

To find out if you are within these weight limits, you could try your hand with the Department of Defense’s complicated formula used to establish body fat and fitness.

On the other hand, you could also just take a look at their charts. (Hint: We chose the charts.)

All the branches of the military have their own weight requirements. Reference the charts below for a guide to the specific height and weight measurements for men and women enlisting in the US Army.

army height and weight standards - men

army height and weight standards - women

If you are looking to get in shape to become eligible to join the military, you’re in luck. A wide variety of excellent supplements are out on the market.

One great example is 4 Gauge, a pre-workout drink that enables you push harder, focus better, and ultimately look and feel better, all without harmful chemicals or artificial sweeteners.

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What Is 4 Gauge?

4 gauge pre workout review
Image: 4gauge.com

No more lackluster workouts.

4 Gauge is a pre-workout drink that is intended to give you more energy and focus for your workouts.

With 4 Gauge in your system, you’ll be able to work out harder and longer, naturally increasing your strength and conditioning.

Over time, you should feel stronger, leaner, and more fit.

How 4 Gauge Works

4 Gauge is intended to work by providing your body with extra fuel to fire those long and hard workouts.

Using some ingredients many will recognize as well as a few new ones, this pre-workout supplement drink is exactly what the (gym) doctor ordered.

The makers of 4 Gauge write that their product is made with all-natural ingredients, without “proprietary blends” or artificial sweeteners.

With just 5 grams of sugar per serving, you get a hint of sweetness without the afternoon crash or calorie strain that comes with other sugary beverages loaded up with high fructose corn syrup.

Ingredients In 4 Gauge Pre Workout

Let’s take a look at the handful of ingredients included in 4 Gauge to get a sense of what the product offers and how this particular pre-workout cocktail holds up to the scientific research.

Caffeine Anhydrous (150mg) — Caffeine is the daily fix for many, many people, whether or not they actually use it for workouts or just getting through the day at work (150mg is about the same amount as in a Starbucks Espresso).

It’s widely known and accepted that caffeine helps with energy and focus and stamina.

But can it support you in the gym, too?

According to WebMD, the answer is not quite as clear cut.

They write that ingesting caffeine does appear to improve people’s strength and conditioning and possibly even delay exhaustion during longer workouts.

On the other hand, it seems that caffeine does not provide much assistance in shorter workouts, like sprinting or heavy lifts.

While it can be helpful, caffeine intake over long periods of time can lead to developing a tolerance.

In some people, this happens in as little as 4 weeks.

If this occurs, you will need even more of the substance to get the same kick, which can become unhealthy and even dangerous at certain levels.

L-Theanine (200mg) — In one study cited by the National Institutes of Health (NIH), 50mg of L-theanine was given to individuals who had recently undergone strenuous exercise.

The addition of this amino acid significantly improved their mental regeneration post-exercise.

Another group was given 200mg, but it did not add any additional benefit.

Another source shows that research indicates an enhanced immune system response in athletes using L-theanine combined with exercise.

While these studies do not report that the amino acid supports people during exercise, it does not mean there’s no reason to use it.

After all, post-workout recovery is just as important for the body as gearing up for the workout itself, especially if you’re getting in shape to join the military…

L-Citrulline DL-Mallate (6000mg) — Interestingly, this one is derived from watermelon.

It’s also sometimes just called citrulline. Thankfully, the research is more clear on it — and in a good way!

According to The Journal of Strength and Conditioning Research, citrulline could “be useful to increase athletic performance in high-intensity anaerobic exercises with short rest times and to relieve postexercise muscle soreness.”

That’s great news.

They go on to conclude that “athletes undergoing intensive preparation involving a high level of training or in competitive events might profit” from taking citrulline.

If that sounds like you, then you’re in luck!

Rhodiola Rosea (100MG) — Next up, we have rhodiola rosea, which is actually a long-living, green and yellow plant.

More good news awaits here…

The NIH reports that rhodiola rosea ingestion has the ability to enhance an athlete’s capacity for endurance exercise.

They do note that the trial subjects were both young and healthy to begin with, although it’s unclear if this is critical to the substance’s efficacy.

Further, the Memorial Sloan Kettering Cancer Center writes that rhodiola helped to improve human test subjects with both “exercise capacity” and “mental performance”.

In other words, the research for rhodiola rosea is quite solid.

Red Beet (300mg) — If the research could somehow get even more clear on a supplement, it’s red beet.

Numerous trials and scientific studies report the incredible benefits of red beet on the human body.

In fact, it is even used in the management of cancer and cardiovascular disease, according to the National Institutes of Health.

As for exercise, the results are also in, and they are just as phenomenal.

In at least two separate studies cited by the U.S. National Library of Medicine, red beet helped cyclists with their performance.

Another study in the scientific journal Nutrition and Dietary Supplements reports that red beet consumption increases “number of repetitions, power, and time to fatigue”.

The conclusion is pretty clear: red beet is a great addition to any workout supplement regimen.

Other ingredients in 4 Gauge are listed as creatine monohydrate (improves performance), acetyl-L-carnitine (research indicates no support), and coconut water (promotes rehydration).

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4 Gauge Pre Workout Reviews

All the research in the world won’t convince anyone if the supplement doesn’t work for real, live, human people in the gym. A few before and after photos wouldn’t hurt either!

Positive reviews:

On the 4 Gauge official website (www.4gauge.com), there are a number of glowing, positive reviews.

Users write that the product has enabled them to improve mass gains on their body with exercise, while also losing extra body weight and excess body fat.

Others write that it also has a great taste. Some say it tastes better than anything else they’ve tried on the market. That’s a great sign, too. Always helps if it tastes good!

Negative reviews:

There are not many negative reviews about this one online.

That’s a good thing in some ways, but it also means that negative aspects are hard to determine.

One reason for the lack of negative reviews is that this product is only sold through its official website. That means you can’t get it through Amazon, Bodybuilding, GNC or any other retailer.

Because of this, negative reviews are a bit hard to find.

That said, one reviewer does say that the taste was good, but also a bit on the sour side to them.

Taste is inherently subjective, and this product only has a single flavor. That might be a problem for some.

4 gauge pre workout before and after
Image: 4gauge.com/Testimonials

Take a look at the before-and-after photo below of Ryan Krause, a man from the US who saw significant improvement in his body when using 4 Gauge as his only pre-workout supplement.

Frequently Asked Questions (FAQ)

Are there any side effects?

Some people may experience jitteriness when taking caffeine. This product contains the equivalent of a Starbucks espresso shot.

How do I take it?

This product is taken orally. You can use one scoop or two, depending on personal preference.

They recommend starting with just one to see how it effects you and your workouts.

How long does it take to start working?

While this will vary from person to person, the range is between 15 minutes and 45 minutes before starting a workout.

Will any of the ingredients cause a false positive on a drug test?

According to this list of known false positives, the ingredients in 4 Gauge should be safe for drug screenings.

Pros & Cons


  • Highly researched ingredients
  • Scientifically proven results
  • No artificial sweeteners
  • Only 5 grams of sugar per serving
  • Fast-acting
  • Effective for many people


  • Only one flavor available
  • Can only be purchased through their website
  • Contains caffeine which may cause jitters in some people

Where to Buy 4 Gauge

4 Gauge can only be purchased on the official 4 Gauge website: 4gauge.com.

The cost is $135 for 4 “shells” of the product (with free shipping to the US and UK).

One “shell” sells for $45 (plus shipping!), so you’re getting one for free if you buy 4 at a time, also without the extra cost of shipping.

The product can be paid for using PayPal or Amazon Pay.

There are no recurring subscriptions or monthly plans, so you don’t have to worry about being charged each month.

Shipping around the world ranges between 2-15 business days.

If you would like to return your product, it must be unopened.

They do not offer a money-back guarantee.


Not all pre-workout supplement products out there come with such highly researched ingredients as 4 Gauge.

This one also has the added benefit of zero artificial sweeteners and only 5 grams of sugar per serving.

There’s only one flavor available, so if you end up not liking it, you may be out of luck there.

All that being said, for people trying to get themselves whipped into shape to join the military, a little extra energy can go a long way.

Our best advice is to try one “shell” and see how it goes.

If it works well, go ahead and get it in bulk orders to save money.

Next up: gym time!

Rob V.
Affiliate Disclosure: This post may contain affiliate links. If you click and purchase, I may receive a small commission at no extra cost to you. I only recommend products I have personally vetted. Learn more.

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