GAT Mens Multi + Test Testosterone Booster Review // Does It Offer Everything?

GAT Mens Multi + Test Testosterone Booster Review // Does It Offer Everything?

My GAT Mens Multi + Test Review

First Look

We’ve not had a great deal of luck with supplements from German American Technologies. They have always fallen short of the required standard.

However, a quick glance at the enormous ingredient profile may have you wondering how the hell it cannot succeed. Something in there has to work, all bases are covered.

Is this a sign of desperation from GAT? Or can they really not be assed to put the effort in to research ingredients properly and deciding to take a scatter-gun approach to it?

This must be one of the most generous ingredient profiles I have ever encountered.

For our in-depth ingredients guide checkout:

– Our best & worst testosterone booster ingredients –

Ingredients: The Science

This is a lot of ingredients, it’s not so much a testosterone booster, it is more like a Nutri Bullet and reading through them all is likely to make you want to put a bullet through your head.


An aphrodisiac and Testosterone Booster, but it will only raise testosterone levels if the user is deficient in zinc.

Zinc is also very important for the functioning of the enzyme, hormone, and immune systems.

In very high doses, zinc can act as an aromatase inhibitor and reduce estrogen levels.

It is also a potent antioxidant and can provide benefits for prostate issues. american technologies multi + test testosterone booster ingredients panel


Nickel is an essential nutrient in some chemical processes in the body.

Its precise functions in the body are not known.


Research into magnesium supplementation also increased testosterone production in men.


No conclusive proof even when supplemented with Zinc that selenium increases testosterone levels.

Vitamin A

Vitamin A is key for good vision, a healthy immune system, and cell growth.

Vitamin C

Its antioxidant properties mean vitamin C provides neuroprotective effects and benefits for blood flow. B

y protecting the testes from oxidative stress, vitamin C can also preserve testosterone levels.

Thiamin (Vitamin B1)

Helps the body’s cells change carbohydrates into energy.

The main role of carbohydrates is to provide energy for the body, especially the brain and nervous system.

Niacin (B3)

Higher amounts of niacin can improve cholesterol levels and lower cardiovascular risks. However, the jury is out on these real benefits.

Vitamin B6

Vitamin B6 helps testosterone levels by stimulating androgen (a steroid hormone that acts as a precursor for testosterone) receptors in your body, making your testes produce testosterone.

Vitamin D3

Research by the US Library of Medicine has shown that testosterone productions are increased with Vitamin D3 supplementation.

Riboflavin (B2)

Important for body growth and red blood cell production.

It also aids in the release of energy from proteins.

Vitamin E

Humans in tests have shown to have low testosterone if they are deficient of Vitamin E.

Vitamin K

It is best known for its role in helping blood clot, or coagulate, properly.

Folic Acid (Vit. B9)

There’s many benefits of Folic Acid, treating kidney problems is one of them.

Folic acid can also help produce more testosterone along with B12 but also necessary to form red blood cells and is also necessary in the formation of DNA.

Vitamin B12

Studies show that people who are anaemic tend not to have high levels of testosterone because they cannot absorb vitamin B12.

Pantothenic Acid (Vitamin B5)

One of 8 B vitamins.

All B vitamins help the body convert food (carbohydrates) into fuel (glucose), which the body uses to produce energy.

These B vitamins, often referred to as B complex vitamins, also help the body use fats and protein.

B complex vitamins are needed for healthy skin, hair, eyes, and liver. They also help the nervous system function properly and is critical to the manufacture of red blood cells.


Biotin is an important component of enzymes in the body that break down certain substances like fats, carbohydrates, and others.


Results show that training results in increased testosterone levels in athletes and that the increase is greater if accompanied by calcium supplementation.

However, a recent study has warned against calcium supplementation due to the increased risk of a heart attack.


studies have shown that people with high amounts of copper actually have lower testosterone levels; it always puzzles me as to why manufacturers would include this.


Chromium supplements are promoted as being helpful in building muscle and burning fat and in helping the body use carbohydrates.

But this has not been proved.


Iodine is an essential component of the thyroid hormone which regulates many important biochemical reactions, including protein synthesis and enzymatic activity, and are critical determinants of metabolic activity.


A number of manganese-activated enzymes play important roles in the metabolism of carbohydrates, amino acids, and cholesterol.

However, when supplemented with calcium and magnesium it lowers the bio-availability of Manganese.


Once again, the old tribulus raises its ugly head.

The problem is that because this has been touted about for so long as a bit of a miracle plant extract used by the mysterious Eastern Bloc Olympic Athletes during the Cold War people have started to believe the hype and it is an easily recognizable ingredient the ill informed will have heard about down the gym.

The issue is that it has not been scientifically proven to raise testosterone levels in any shape or form.

In fact, in studies using elite professional Australian rugby players as participants Tribulus did not produce the large gains in strength or lean muscle mass that many manufacturers claim can be experienced.

Avoid like a medieval plague if you are looking for muscular gainz.


Although it is toxic in anything other than small quantities, molybdenum is an essential element for animals and plants.
There are about 50 different enzymes used by plants and animals that contain molybdenum.


This helps the body reduce calcium loss in urine.

However, too much supplemented at once on an empty stomach can cause cardiac arrythmia.


Compelling data suggest that silica is essential for health although no RDI has been established.

However, deficiency induces deformities in skull and peripheral bones, poorly formed joints, reduced contents of cartilage, collagen, and disruption of mineral balance in the femur and vertebrae.


Boron is great for the older lifter or those doing high weight low rep work as it helps to reduce inflammation, something that is found in PrimeMale, which I am a fan of.


Lutein and zeaxanthin, found together in many vegetables, are potent antioxidants.

In humans, they occur in high concentrations in the eye, including the lens, retina, and macula.


Essential to some species, including humans, although we need very little.

We take in just 0.01 milligrams each day, and this is more than sufficient for our needs. In some compounds vanadium can become toxic.

DIM (Diindolylmethane)

Diindolylmethane appears to promote a healthy balance of testosterone in the body and is found in vegetables such as broccoli.


Higher serum phosphorus levels are associated with cardiovascular disease. It is unknown if sex hormones associate with phosphorus levels in humans.


Great for people with liver, heart and kidney problems but no evidence for boosting testosterone.


It is generally touted as a Muscle Builder, but has not been proven to enhance muscle building in healthy individuals; only those suffering from physical trauma such as burns or muscular wounds (knife wounds) or in disease states in which muscle wasting occurs, such as AIDS.

Branch Chain Amino Acids

BCAAs (typically a combination of  L-Leucine, L-IsoLeucine and L-Valine) play a critical role in muscle development because they are metabolized in the muscle rather than the liver.

Because BCAAs are metabolized in the muscle, they can be used for building new proteins or for energy.

However, Supplementation is not necessary if you eat eggs and meat regularly.


Lysine is important for proper growth, and it plays an essential role in the production of carnitine, a nutrient responsible for converting fatty acids into energy and helping lower cholesterol. A lack of lysine can cause fatigue, slow growth and loss of appetite.


Threonine is changed in the body to a chemical called glycine. Glycine works in the brain to reduce constant and unwanted muscle contractions (spasticity).


This is found in many pre workout supplements or products designed to make you more vascular.

L-Arginine opens up the blood vessels and arteries to assist with blood flow, nothing really to do with testosterone but may assist with any impotency issues that are not helping you attain that hot chick in the gym who is 15 years your junior but only if you have 5g a day!

Saw Palmetto

This fatty acid was long touted to help boost testosterone levels, but those claims turned out to be false. It is effective in suppressing prostate growth though.

So could help if you are taking steroids or Prohormones.

Alpha Lipoic Acid

Alpha-lipoic acid is an antioxidant made by the body. It is found in every cell, where it helps turn glucose into energy.

Antioxidants attack “free radicals,” waste products created when the body turns food into energy. Free radicals cause harmful chemical reactions that can damage cells, making it harder for the body to fight off infections.

Green Tea

Well known to have many powerful health benefits.

Clinical studies suggest that green tea extract may boost metabolism and help burn fat. O

ne study found that the combination of green tea and caffeine improved weight loss and maintenance in people who were overweight and moderately obese.

Some researchers think that substances in green tea known as catechins are responsible for the herb’s fat-burning effect.

Green tea extract is found in many a good fat burning supplement.


Good for reducing inflammation and an enlarged prostate but has no effect on testosterone.


This has seen to sexually invigorate rat test subjects. Evidence on Damiana Leaf is lacklustre.

Not too many studies have been conducted on it.

Pumpkin Seed

 Pumpkin seeds are great for Magnesium which is good for testosterone production.

Panex (Korean) Ginseng

This form of Ginseng is the most highly researched.

There’s lots of evidence which suggest cognitive function, mood and immunity is increased, however, although there is evidence for better erections and an increase in testosterone production for infertile men there is also evidence contradictory evidence also.

Pygeum Bark

Pygeum contains chemicals that help shrink the prostate to relieve urinary problems such as poor urine flow and nighttime urination in men with enlarged prostates.


This appears to help with blood flow and circulation, however, there is no real body of evidence to support these claims.

Citrus Bioflavonoids

Lemon contains antioxidants called bioflavonoids.

Researchers think these bioflavonoids are responsible for the health benefits of lemon.


Supplementation in rats has shown an increase in testosterone alongside a high protein diet but no evidence in humans.


Grapes, or the chemicals within them, especially oligomeric proanthocyanidin complexes (OPCs), have been touted as powerful antioxidants yet in humans there is a real lack of clear evidence that there are any real benefits.


Research on the health claims of blueberries is inconclusive.


In disease-fighting antioxidants, cranberries outrank nearly every fruit and vegetable–including strawberries, spinach, broccoli, red grapes, apples, raspberries, and cherries


According to a large study in the US carrots may help prevent heart disease and cancer.


Papaya contains a chemical called papain. Papain breaks down proteins, carbohydrates, and fats.

There are uncertainties whether it is effective when taken by mouth though.


Contains large amounts of vitamin C.

Some researchers believe sweet orange might help asthma because of the antioxidant activity of vitamin C.

Orange also contains large amounts of potassium. There is evidence that potassium may help prevent high blood pressure and stroke.

Overall there is insufficient evidence to back these claims.


There isn’t enough scientific evidence to determine whether or not bromelain is effective for any of its many varied uses.


Is a good source of many nutrients such as vitamins B2 (riboflavin), C (ascorbic acid), manganese, and phytochemicals.

Consumption of pineapple and its components has been linked with immunity.

Some researchers also associated pineapple with cancer, wound healing, diabetes mellitus and liver disorders, diarrhea or other disorders of the gastrointestinal tract, and even tuberculosis.


The leafy helps fight off osteoporosis, heart disease, arthritis, and several types of cancer. Plus it’s loaded with vitamins, minerals, fiber, and antioxidants.


Elderberry might affect the immune system.

Elderberry seems to have activity against viruses including the flu, and might reduce inflammation.


Kale contains chemicals that are thought to help prevent cancer.

Chemicals in kale might also have antioxidant activity.

Brussels Sprouts

Brussels sprout contains chemicals that are thought to help prevent cancer.

For breast cancer in particular, eating Brussels sprout might change the way estrogen is used in the body, which might reduce the risk of breast cancer.

Brussels sprout also has antioxidant activity.


Chemicals in broccoli might have cancer-preventing and antioxidant effects.

Not to mention the ability to regulate estrogen levels. Too much estrogen can result in an hormone imbalance which is harmful to testosterone levels.


Appears to be effective at reducing fat mass when a mixture of polyphenols are used, and may work nicely with Caffeine.


Papain contains substances called enzymes that help break down proteins. It may also be good for shingles.


We are instructed to take 2 pills per day with a meal.

This isn’t entirely optimal.

It is much better to have at least 4 tablets but each tablet to be taken over the course of the day to ensure there are no peaks or troughs of the nutrients being utilized by you body.

There’s a daily dose of 1723.035mg


Wow, where can we start.

This seems to have every vitamin, anti-oxidant, anti-cancer and mineral present.

Everything is here to help prevent the common cold to fight HIV/AIDS.

In fact it seems almost everything but the turkey is on here to provide a thanksgiving dinner!

This is like one of Willy Wonka’s creations – providing a full 3 course meal in 2 tablets instead of the stick of gum.

In terms of testosterone production there’s a good number of vitamins here to help stimulate growth hormone.

There is: B6, B12, Vit K, D3, Zinc, Magnesium, Ginseng, DIM and even Calcium…to a degree.


While you cannot really complain at the mass of ingredients here, with so many being beneficial…

However, consider how little of each we are getting when a daily dose is less that 2000mg!

Plus there’s a proprietary blend.

Not only that, GAT boast of the included Tribulus…that is like boasting about the genital herpes you have not manged to get rid of since your vacation to Somali.

There’s also the risk of toxicity with Vanadium.

Calcium supplements can cause heart problems as they may cause plaque to the arteries.

When Manganese is supplemented with Calcium and Magnesium its bio-availability is reduced.

Copper can actually reduce testosterone levels.

Let’s not also remember that while many of the vitamins present here are ‘known’ or thought of offering many benefits, the evidence is not always there to prove it.

GAT Mens Multi + Test Testosterone Booster Conclusion

I feel like I have aged a good 4 hours analyzing this supplement… because I have.

I understand this is not just a testosterone booster, it is in the same vein as the GNC Mega Man as well as some of the testosterone boosters offered by MuscleTech which all seem fond of piling in every vitamin and mineral possible.

However, is it really necessary? Not when it is dosed so low, then it becomes pointless.

Why not replace the masses of crap, unproven ingredients with Fenugreek or D-Aspartic Acid and then increase the amount of D3, B6, B12 etc.?

That is what needs to be done here. Throw away the frankly absurd number of ingredients that have little to no real world effect and replace them with useful amounts of scientifically proven ingredients.

Take a look at what works to maximize your workouts.


Our Favorite Test Boosters

> Increase Natural Testosterone Production

> Build Slabs Of Muscle

> More Energy

> Increase Strength

> Improve Overall Well Being


Ben BA(Hons), PGCert

Ben established this site to be a free resource in 2015. Since then it has gained over half a million visits. He has always been interested in sport and he started playing rugby at the age of 6 represented his town, county and school. Ben also enjoys cycling, has started skiing and is in the Army Reserve representing his Regiment as part of the 150 Regimental Shooting Team. He holds a bachelor's and postgraduate degree in sport exercise & nutrition.

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