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How Do Testosterone Boosters Work?

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The supplement industry is massive. In fact it’s so massive that there’s now pretty much a supplement for any goal you can think of – muscle building, fat stripping, pre workouts…. the list goes on.

But what’s the low down with testosterone boosters? Do they work.. and if so, how?

And what should you look out for when choosing the best product?

In this article we take a look at test boosters and tell you everything you need to know about them.

Read on to find out more…

What Are Testosterone Boosters?

T boosters have one goal in mind – to elevate anabolic hormone levels and increase testosterone levels in the blood.

They don’t contain synthetic testosterone like steroids, but instead rely on nutrients that support natural T production. They are like an alarm clock for your testosterone, giving it a gentle nudge in the right direction.

Most T booster supplements contain all-natural, herbal ingredients. These ingredients serve to indirectly stimulate T production by triggering precursor hormone release from the brain, inhibiting testosterone antagonists or acting directly on testicular tissue.

But why elevate testosterone in the first place?

The importance of testosterone can’t be understated. It is the king of male hormones.

Low T levels can leave you feeling depressed, weak, lethargic and at a higher risk of long-term health issues.

Higher levels on the other hand will help you build muscle mass and strength, feel full of energy in the gym (and bedroom) and help to optimize your body composition by fighting belly fat.

If you’ve been told by your doctor that you have low test levels (hypogonadism) or just feel run down, tired and weak… you should consider using a a test booster supplement.

And if you want to maximize productivity and results in the gym or on the sports field, guess what? You should take a booster.

Muscular man with testosterone booster and kettlebell

Key Point: Test boosters help to elevate your testosterone levels by providing natural support to your body and optimizing pre cursor hormone release.

Do Test Boosters Work?

A good place to start here would be to first discuss not how these supplement work, but if they work? 

With so many unethical manufacturers around it’s easy to be skeptical about the supplement industry. And you’d be right to ask that question.

The answer of course would be a resounding yes. But only if your product is high-quality and it contains the right nutrients.

And what’s even better is that these products elevate hormone levels without the side effects and adverse reactions that you get with steroids and test replacement therapy.

Great. So How Do They Work?

When you take a t -boosting supplement you stimulate your body into making more testosterone. It’s like putting supercharged fuel into your automobile.

This happens because you either trigger a release of hormones from the brain that stimulate the testes to make more T; or you inhibit the hormones that convert T into estrogen.

Either way, the result is a higher testosterone level. 

So it’s all about the nutrients that you use. If they stimulate one of these mechanisms then you’re well on your way to better performance and health. Take the wrong ones and you’re wasting your money.

Strong and muscular man with athletic performance bicep curl to boost T levels

Choosing The Right Nutrients

Unfortunately, many companies choose to use poorly researched ingredients to keep costs down – and at the same time sacrifice quality to make a quick buck.

It can therefore be a daunting task choosing the right product, even with the information there in front of you. Because unless you know what you’re after, you might be picking a poor imitation supplement.

Avoid proprietary blends

Some manufacturers choose not to disclose exactly what ingredients are in their products, and how much of each they use. Whilst they’ll put a marketing spin on it and tell you it’s because they don’t want other companies stealing their ‘secret formula’, the truth is they are hiding ineffective doses and poor quality ingredients.

How can  they do this? Currently, the FDA state that all ingredients in a product must be included on an ingredients label… unless it’s part of a proprietary blend.

Avoid them because you don’t know what you’re getting.

Check out the testimonials

Reading reviews from customers gives you an idea of how good the product is.

Look at the results from the before and after shots – do they look real (unfortunately some choose stock photos… but you can usually tell).

Look for all-natural ingredients

A good place to start when choosing your supplement would be to look at the ingredients. You want an all-natural product in order to maximize results whilst minimizing side effects.

For that reason, here are the best ingredients to look out – if your booster doesn’t contain these then you need to be looking elsewhere

The Best T Boosting Nutrients

#1. D-Aspartic Acid

This amino acid is formed via a converting enzyme called aspartate racemase.

The main role of D-AA is to trigger luteinizing hormone. This in turn tells the testes to pump more T into the bloodstream.

Many research reviews place D-AA at the top of their list of nutrients to look out for when choosing a good test booster. And this is backed up by clinical research too. One study in particular found that in 90 days, a group of trained athletes reported T levels that had gone up by 30-60% and semen parameters that had improved by 60-100% [1].

#2. Vitamin D

This vitamin is often referred to as the sixth steroid hormone due to its potent effects on stimulating testosterone levels.

It works because testicular tissue is a big target tissue for D3 – the most potent version of vitamin D. This in turn has a direct effect on how much T is produced by the Leydig cells on the testes.

One study for example found that when a group of athletes supplemented 3,332 IUs of D3 per day, T levels increased significantly [2].

#3. Zinc

Zinc is a mineral that has T boosting properties, but also supports your immune system. And if that’s not enough, it has antioxidant properties too.

It’s pretty much an all rounder because it has the power to boost fat loss and energy, improve mood and elevate overall health.

The beauty of this compound is that it elevates testosterone even during periods of intense physical activity. Much like, D-AA.

One research study reported that in a group of elite wrestlers, T levels rose to significant levels [3].

#4. Fenugreek

This  herb is popular in Asian cuisine and is high in alkaloids, folic acid and vitamin C.

It helps to boost testosterone as it reduces levels of sex hormone-binding globulin (SHBG) which swallows up to the T in your blood and makes it unusable to tissues.

One study found that when a large group of athletic men were given 500 mg of fenugreek daily, their total and bioavailable T levels rose significantly [4]. On top of that they dropped fat and built muscle too.

Summary – How Do T Boosters Work

A good high-quality test booster will provide your body with the best natural nutrients needed to manufacture testosterone. Get the right products and your male hormone levels will soar.

They work by promoting testicular release of T through nutrient stimulation, but also inhibit the enzymes and proteins that swallow up T in the bloodstream. They’re very clever supplements.


  1. D’Aniello et al, G. D-aspartate, a key element for the improvement of sperm quality. Adv. Sex. Med. 2012; 2: 47–53
  2. Pilz, Effect of vitamin D supplementation on testosterone levels in men. Horm Metab Res. 2011; 43(3): 223-5
  3. Kilic, M et al. The effect of exhaustion exercise on thyroid hormones and testosterone levels of elite athletes receiving oral zinc. Neuro Endocrinol Lett. 2006; 27(1-2): 247-52
  4. Wilborn, C et al. Effects of a purported aromatase and 5α-reductase inhibitor on hormone profiles in college-age men. Int J Sport Nutr Exerc Metab. 2010; 20(6):457-65