Grape Seed Extract Testosteone

Grape Seed Extract | Testosterone


If you’re like me, you’ve probably heard about the potential game-changing effects of Grape Seed Extract on Testosterone. One of the most crucial elements to working out harder & recovering better lies in your ability to raise and utilize testosterone. So, after a little research, I found some studies that investigate this Grape Seed Extract and what it may be able to do for low testosterone.

Studies show that in certain populations compounds found within Grape Seed Extract can raise levels of free testosterone in the blood.  This is reportedly due to the compound known as procyanidin B2, which acts as an aromatase inhibitor. This inhibits the conversion of free testosterone into estrogen and estradiol in the body. However, there are still a few things that you need to consider before taking Grape Seed Extract for Testosterone. Let’s look at if this supplement is the right choice for you.


What is Grape Seed Extract?

Normally harvested for the fermentation & production of wine, the Grape has recently struck the interest of fitness fanatics who report that Grape Seed’s Extract can produce powerful testosterone boosting effects enabling users to burn more fat and grow more muscle easier & faster.

Unsurprisingly, Grape Seed Extract is derived from the seeds of grapes. It is produced by grinding up the seeds found at the center of the grape and then, using steam distillation or cold pressing, the pure contents from within the grape are extracted.


Benefits of Grape Seed Extract

Compounds within the grape, particularly the seed, have long been recognized as a potent source of polyphenols and antioxidants which undeniably play key roles in the maintenance of the health of cells in our body.

Anecdotally the compounds within Grape Seed Extract have been found to assist with:

  • Lowering cholesterol
  • Aiding weight loss
  • Increasing cognitive function
  • Regulation of blood pressure
  • Optimizing fluid balance
  • Speeding the healing of wounds
  • Reducing swelling after an injury
  • Preventing muscle damage

Reports even show that Grape Seeds have been used for their wide range of health benefits over the last 10,000 years!

But does Grape Seed Extract Boost Testosterone? How may it be beneficial to you and your training? And are there any risks of using this supplement? The good news is that scientists have also been interested in this topic and have conducted research on the various effects of the Grape (Vitis vinifera) seed extract. Here is what the science says. But first a few precautions.


Who should NOT Take Grape Seed Extract?

Although the NCCIH states that Grape Seed Extract is “generally well tolerated when consumed in moderate amounts”, before consuming Grape Seed Extract for Testosterone enhancement it is recommended that you consult your doctor.

The following populations are strongly advised to avoid Grape Seed Extract consumption:

  • Those who are pregnant. The growing fetus requires ample amounts of estrogen to grow optimally, you do not want to risk your baby’s health over a little extra gain in the gym!
  • Those taking anticoagulant medications (aka blood thinner) e.g. Plavix, Aspirin, or Coumadin.
  • Those with liver impairments

The interaction between Grape Seed Extract & other drugs is not well understood.

Before taking it is advised that you consult your doctor.


Can Grape Seed Extract boost testosterone?

Alright, so now to the good stuff.

Maybe you heard it from that shredded fitness YouTuber, or maybe it was your fitness fanatic friend who swore by the testosterone-boosting effects of Grape Seed Extract. And so now wanna try some. But you’re probably wondering “could this plant supplement really have an effect on my ability to recover and train more effectively?”.

In short, research has produced some findings that support the concept of increased testosterone following Grape Seed Extract supplementation. However, there is more to this relationship than meets the eye. 

Rather, instead of directly increasing Testosterone levels, the compounds found within Grape Seed Extract have been known to inhibit the production of estrogen and estradiol (the hormones in which act to counterbalance testosterone levels in the body). Or for you science lovers out there, Grape Seed Extract reportedly contains a substance called procyanidin B2, which is a naturally occurring aromatase inhibitor.

Let me explain a little further.

Excess testosterone circulating in the body will undergo a process known as aromatization. During which, the aromatase enzyme will chemically convert free testosterone to estrogen and estradiol. Ultimately, this enzyme’s job is to reduce the amount of available testosterone in the body and increase the amount of available estrogen and estradiol.

So Grape Seed Extract Can Increase Testosterone?

Well, not so fast.. One key factor is often forgotten when discussing this topic. That is, the conversion of free testosterone to estradiol and estrone in the body does not solely rely on the action of the aromatase enzyme and can occur via a host of different pathways.

Despite this, [one study] that looked at the effects Letrozole, (another aromatase inhibiting drug), found that testosterone in both younger and older males can be seen to rise 146% after 28 days of consumption!

What’s even more interesting, is that luteinizing hormone, which controls the production of testosterone, was also observed to be elevated by a whopping 339 and 323% in the young and the elderly, respectively.

Theoretically, this means supplementation with Grape Seed Extract can potentially be beneficial in the elevation of testosterone, leading to increased performance and recovery.


Should Women Avoid Supplementing with Grape Seed Extract?

So, does this mean that if you’re a woman who is considering supplementing with Grape Seed Extract, you should be concerned about potentially raising your levels of male sex hormones?

Not really. Because of the various mechanisms that the body can utilize to create and recycle both male and female sex hormones, the chance that you will develop male sex characteristics are slim. [One study] even suggests that females who have a genetic tendency for certain types of breast cancers can potentially fight tumor development after supplementation of aromatase inhibiting compounds.


Although still, an area needed for further research, there is increasing evidence to suggest that these compounds are effective in treatments of some breast cancer growths.

But it important to remember that the trials performed with such drugs have the potential to produce a host of negative side effects in some patients.


Signs That You Need to Stop Taking Grape Seed Extract

Whether using for testosterone or not, you should stop supplementing with Grape Seed Extract if you experience any of the following adverse effects:

  • Nausea/vomiting
  • Headache
  • Dizziness
  • Stomach/throat Pain
  • Itching scalp


How Much Grape Seed Extract to Take for Testosterone Enhancement?

Given that the only food source for this extract is grape seeds, the supplement form is the most logical form of ingestion.

The recommended dosage for those looking to increase testosterone should start at around 100 milligrams per day, slowly increasing doses of up to 300 milligrams per day.

While experimenting with how your body reacts to the supplement please stay aware of the aforementioned symptoms. It is important to keep a close eye on your reaction to this supplement.

If you are pregnant or planning a pregnancy, we again remind you to avoid consumption.


What Are the Best Ways to Increase Testosterone?










More and more people are turning to the use of synthetic hormone replacements in the form of patches and creams to counteract the side effects of lower testosterone. However, along with the supplementation of Grape Seed Extract, there are many other natural behaviors and nutrients that are believed to have powerful testosterone increasing effects. And you can start benefiting from them today!

Science reveals that the following natural approaches can similarly increase testosterone levels:

  • Lowering stress [study]
  • Supplementing with Vitamin D or enjoying more sun exposure [study]
  • Exercising larger muscle groups in the form of compound exercises & high-intensity interval training [study]
  • Supplementing with Ashwagandha [study]


Why Is Testosterone Worth Worrying About?

Due to our modern-day fast-paced lifestyles, it is becoming increasingly common for individuals to suffer the negative effects of low testosterone, some of which include:

  • Lower Libido
  • Muscle Atrophy and Impaired Recovery
  • Fatigue
  • Brain Fog
  • Depression
  • Increased Fat Storage

This problem is becoming a cause of increasing concern as the link between low testosterone and premature death is growing ever stronger.

Not only for men, but Testosterone is also essential for women as many of the female hormones like estrogen and progesterone rely on a balance with testosterone to work effectively.

Therefore, if you suffer from any of the above symptoms you may benefit greatly by implementing the tips given today



So, while plausible that the consumption of Grape Seed Extract could potentially increase testosterone levels AND decrease the risks of some cancers, there is currently limited evidence to say confidently that these effects can be powerful enough to impact athletic performance & recovery. That being said, there have not been enough studies on the effects of Grape Seed Extract upon Testosterone.

Nevertheless, research is becoming clear that the abundant nutrition profile high in vitamin E and antioxidants can provide many users with the sensation of:

  • Higher stamina
  • Increased Ability to Burn Fat & Build Muscle
  • Clearer Skin
  • Improving Cognitive Performance

Could these anecdotal claims be due to the inhibition of female-hormone-producing enzymes or simply a factor of achieving more vitamins and antioxidants?

Let us know what you think down in the comments below ⬇


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