D Aspartic Acid and Testosterone: The HUGE Benefits

Fact Checked On: 10-15-2018 By: Rob Miller

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Do Testosterone Boosters With D Aspartic Acid Work?

As the days go by, we become older and older but there isn’t all that much we can really do about it.

However, declining testosterone levels as we head into middle-age shouldn’t be passed off as normal, as there is plenty that we can do to prevent this problem.

testosterone decrease by age

Note: If you’re looking to pick up cheap (but effective) D-Aspartic Acid, check out AbsorbYourHealth.com.

They sell 100 grams of the stuff for just $10.99, and I’ve personally used this brand with great results.

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Reviving normal hormone function can greatly improve life quality, hence, the overwhelming interest in maintaining adequate testosterone levels as long as possible.

In order to keep their edge, many men are experimenting with natural testosterone boosting supplements and synthetic alternatives instead of just accepting the natural process of aging.

Unfortunately, not all of these natural testosterone boosting supplements actually work.  Oftentimes, testosterone boosting supplements have a ton of different ingredients that are impossible to pronounce and may not have much research behind them.

In many cases, it is best to pass on these herbal supplements that don’t have proven ingredients in their formulas, and go for more natural ways to boost your testosterone.

However, there is one commonly used ingredient in many of these formulas that has been proven to be effective.  This ingredient, D Aspartic acid (sometimes referred to as D-AA), is used by plenty of men all over the world in order to stave off age related hormonal changes.

D Aspartic acid has been shown to increase testosterone levels in a number of different studies, which we discuss in greater detail below.
discuss in greater detail below.

However, DAA contributes even more than that, as it can improve fertility as well.

In other words, any man who wants to improve their fertility, sex drive, and maintain their youth as long as possible should absolutely be familiar with D-AA.

What Is D Aspartic Acid?

D Aspartic acid is a fairly common amino acid that is found in the cells of a wide range of animals, including rats and humans.

d aspartic acid review

D-AA naturally occurs in the testicles, pituitary gland, and the hypothalamus, due to an enzyme called Aspartate Racemase which is responsible for conversion of L-Aspartate into D-Aspartate.

The reason why D Aspartic acid has caught the attention of researchers who are creating natural testosterone boosting supplements is because it plays a key role in regulating testosterone synthesis.

It has been shown that a lack of D-AA is often a bottleneck for optimal testosterone production, so consuming a balanced diet that contains the building blocks for the synthesis of D-AA is something all men should focus on.

However, aging men may not have enough of the Aspartate Racemase enzyme to  create a sufficient supply of D-AA.  This is where supplementation of D-Aspartic acid comes in extremely handy.

What Does DAA Do?

D-Aspartic acid exhibits its effects on the Pituitary gland, causing a natural release of hormones.

These hormones include Luteinizing Hormone (LH), Follicle-Stimulating Hormone (FSH), and Growth Hormone (GH).

Anyone who knows anything about Endocrinology (the study of hormones) realizes LH, FSH, and GH are required for testosterone production.  D-Aspartic acid also builds up in the testicles, increasing testosterone synthesis and improving sperm quality.

What Are The Benefits Of D-Aspartic Acid Supplementation?

Short term consumption of D-Aspartic acid has been shown to increase testosterone levels.  D-Aspartic acid also increases sperm mobility and therefore, increases fertility.  All in all, this amino acid offers benefits to men in a number of ways.

First let’s focus on the benefits of increased testosterone production.

Not only does a normal level of testosterone increase sex drive, build muscle, and promote confidence, it also keeps us healthy.  As we age, more testosterone is converted into estrogen, causing the feminizing characteristics that are common in older men.

In order to fight back against time, maintaining a normal level of testosterone is a crucial step in this battle.

Since D-Aspartic acid increases sperm count, sperm mobility, and sperm quality, anyone who is suffering from fertility issues should give D-AA a try.

D Aspartic Acid Testosterone Studies

There are a number of scientific studies on D-Aspartic acid that demonstrate the importance of this amino acid in regards to testosterone production.

One study from 2009 looked at the role of D-Aspartic acid in the synthesis of Luteinizing Hormone and in turn, testosterone production in both humans and rats.  Over the course of 12 days, it was shown that testosterone levels increased in both humans and rats.  Amazingly, an average testosterone increase of 42% was demonstrated in this study.

In the same study, luteinizing hormone increased 51% over control values, indicating that the testosterone increase was related in part due to an increase in LH.

As expected, D-Aspartic acid plays a crucial role in the synthesis of luteinizing hormone that in turn increases testosterone production.  Not only that, but the Leydig cells in the testicles showed an increase in testosterone synthesis.

This study demonstrated that D-Aspartic acid plays a role in both the pituitary gland and the testes, resulting in an overall increase in testosterone production.

In another study that took place in 2012, D-Aspartic acid was noted for its ability to improve sperm quality.

In this study, 30 patients consumed a daily dose of D Aspartic acid for 90 days and showed a 100% increase in sperm count, from an average 8.2 million spermatozoa per milliliter to an average of 16.5 million spermatozoa per milliliter after treatment.

This huge increase in sperm count shows with certainty the benefit of using D-Aspartic acid as a fertility aid.

In addition, the same study showed that D-Aspartic acid supplementation increased sperm mobility by 67%.

In conclusion, D-Aspartic acid is noted as playing a huge role in all around male health.

However, anyone who is completely healthy, has normal testosterone levels, and is a highly trained athlete, likely won’t benefit much from D-AA supplementation.

In one study, highly trained athletes who supplemented with D-AA had no notable increases in testosterone production after 28 days.

In other words, men who are suffering from a lack of normal testosterone production are likely to benefit to the greatest degree when consuming D-AA.

Supplementation with D-Aspartic acid appears to assist the endocrine system to function as it should, but doesn’t have an effect on men who already have optimal hormone levels.

How To Take D-Aspartic Acid And What To Take It With

In most cases, a dose of 3,000 mg of D-Aspartic acid is consumed daily.  People who supplement with D-Aspartic acid generally cycle it in order to get the most from it.

Oftentimes, consuming 3,000 mg of this amino acid for 12 days straight is followed by seven days off in order to avoid building up a tolerance.

Stacking D-Aspartic acid with other supplements like vitamin B6, vitamin B12, and folic acid have been shown to increase testosterone levels even more.

Who Should Use D-Aspartic Acid?

Anyone who is suffering from low testosterone levels may want to consider using D-Aspartic acid in combination with a number of other supplements in order to revitalize themselves.

Since D-Aspartic acid has been shown to increase testosterone levels, combining supplementation with a resistance training regimen should promote muscle growth in middle aged men.

Any man who suffers from fertility issues may also want to supplement with D-Aspartic acid, as it has been shown to improve sperm mobility, quality, and count.

Men who are having a problem maintaining their hormone levels may be able to “reset” them by using D-Aspartic acid, as it interacts directly with the pituitary gland.

Since this master gland regulates all other hormones within the body like estrogen, progesterone, and testosterone, proper function should equate to normal testosterone levels.

Many men often consult with their doctor in order to increase their testosterone levels.  In the greater majority of cases, the simplest solution is Testosterone Replacement Therapy (TRT).

However, this has a number of drawbacks and may not even be necessary for men who try D-Aspartic acid first.  In addition, by regulating the pituitary gland, D-Aspartic acid has the potential to bring the entire endocrine system back into alignment.

When it comes down to it, men who wish to retain their youth as long as possible should consider using D-Aspartic acid.

Where Can You Buy It?

Since D Aspartic Acid is considered an herbal supplement, you can find it on the shelves in stores like GNC, Walmart, Walgreens, Vitamin Shoppe, and CVS.

The price ranges from as little as $15, to as much as $90, depending on the store you’re buying it in and the brand.

There’s plenty of supplements for sale online that contain a health dose of D-AA, including Testofuel, Nugenix, and a host of others.

Conclusion

Anyone who is expecting to look like the Incredible Hulk after taking D-AA is setting themselves up for disappointment.

However, D-Aspartic acid has the potential to assist men who have declining testosterone levels and help them revive their normal hormone function.

In other words, men who just don’t feel like they are on the top of their game are likely to benefit from D-AA in a big way.

A wide range of men, especially those who have reached middle-age can benefit from D-Aspartic acid supplementation, as it increases testosterone to a healthy level.

Since some studies have shown a huge increase in testosterone levels, as high as 42%, after taking D-Aspartic acid for only 12 days, it is worth giving it a shot.

In combination with other supplements and natural testosterone boosters that have been proven to be effective, D-Aspartic acid is likely to be synergistic, meaning that it offers even greater results when it is stacked.

Since D-AA is relatively inexpensive, has been proven to be effective, and doesn’t come with a wide range of side effects, there is no harm in trying it out.



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User Questions and Answers



I am 73. Bery good health Prostate cancer 20 yrs ago PSA 0.01 No energy Loosing sex drive Can I take d arspatic acid -Andy


It should be okay, but because of your previous condition, check with your doctor to make sure.- Rob

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I have read there are questions with safety ,owing to exitosis of neurons in the brain....do you have any thoughts please -george


I haven't seen anything about this.- Rob

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Author: Rob Miller

Supplement Critique

Rob Miller founded SupplementCritique.com over 7 years ago, and has been the chief editor ever since. He has a diploma in Advanced Dietary Supplements Advisor, and worked at GNC for 3 years. He KNOWS supplements, both inside and out. Rob currently resides in Jupiter, FL, with his wife of 4 years.  Learn more about him in his Bio here. Follow him on Twitter , Facebook, LinkedIn, or find him on Google +.

8 comments on “D Aspartic Acid and Testosterone: The HUGE Benefits”

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  1. I am 69 years old and have had ED for many years. I have tried more supplements than I can count and have spent more money than I care to admit.

    In your professional opinion, is there any way to reverse this problem without the use of drugs? I have slightly elevated LDL cholesterol, triglycerides are normal and HDL is normal.

    I am a few pounds overweight. I know there is no 1 “magic pill” but is there a natural series of vitamins and supplements to reverse this problem, or is it permanent?


    1. Hey Glen,
      Yeah I hear ya. Really your best bet to reverse ED is to live a better, healthier lifestyle. That means losing weight, limiting alcohol consumption, and eating right. Most guys don’t want to go that route, and are simply looking for a quick fix. But I will tell you this, if you lose weight and get everything in check, there’s no reason that your libido shouldn’t return to normal.

      Check out my free “Natural Enlargement Exercises” ebook here: https://www.supplementcritique.com/free-enhancement-ebook/

      I know you’re not looking for size increases, but I have a TON of tips on how to naturally restore lost libido. I would pay particular attention to Chapters 7 and 9, as they specifically focus on that. If you want something to take on an “as needed” basis, check out a supplement called Hardon Helper.

      It works great on-demand, and is actually the best fasting acting pill I’ve ever used (and I’ve used close to 100 over the years). Here’s my review: https://www.supplementcritique.com/hardon-helper-review-dr-seltzers-awesome-formula-and-my-results/

      Hope this helps and let me know if you have any questions.
    1. Hey Glen,
      That’s a good question. I’ve never read anything about D-AA lowering CRP.

      My guess is it wouldn’t, but anything is possible.
  2. Hi, I have been trying to have another child and it has been long. My last born is 10 years.

    If I take D-ASPARTIC will I realize the results?
    1. Hey Lucas,
      Good question. There has been some evidence that DAA can help with male fertility, but it’s pretty limited so I wouldn’t rely on it solely.

  3. Hi, I am 62 years old but still very active. Run, swim, lift weights regularly. I believe because of age that my testosterone has decreased. Need help with Libido at times. So, began taking D-AA and have for about 3 weeks. Should I also cycle off of it and follow the suggestion of 12 days on and 7 days off? Or can I take it indefinitely? What would you suggest I do to continue to benefit from it in the long run? Thanks for a good article. Gary
    1. Hey Gary,
      Yeah it’s always a good idea to cycle off D-AA, or really any supplement for that matter. For long term results, it’s really a 3 pronged approach: suitable diet, the “right” types of exercise, and supplementation. It looks like you signed up for my free “How To Boost Testosterone Naturally” ebook. It’s got a ton of great tips on the diet and exercise portion of the approach, let me know if you have any questions on it.

      Supplements wise, I would recommend you go with a product called Prime Male. It’s got D-AA, HOWEVER, it also combines a bunch of other potent testosterone boosters, including Magnesium, Zinc, and Nettle Root Extract. Check out my review here: https://www.supplementcritique.com/prime-male-testosterone-booster-review/

      Hope this helps and let me know if you have any questions.

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