D-Aspartic Acid Review 2020 | Does it Really Work?

Have you heard about the relationship between D-aspartic acid and testosterone? Well, testosterone is an essential hormone in men. It is the chief male sex hormone responsible for the development of reproductive tissues and also help in muscle creation and bone mass. Lack of enough testosterone affects men’s general physical appearance and their sex-drive. Since deficiency of the hormone is scary, many men opt to take dietary supplements with D-aspartic acid to improve their testosterone levels. These supplements contain D-aspartic acid as the primary component.

In this article, we’ll explain what D-aspartic acid is and its effects on testosterone (does it boost testosterone?). Also, we’ll tell you whether or not it improves response to exercise, its benefits and its effects on fertility. We outline potential side effects, safety, and dosage.

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Table of Content

    What is D-Aspartic Acid?

    D-Aspartic acid is one of the isomers that form aspartic acid. Isomers are compounds that constitute the same atoms with different properties as a result of their different arrangements within the molecule. Aspartic acid is a non-essential amino acid. Non-essential in the essence that they are build-up by the body; hence no food is necessary to provide them. These amino acids are the building blocks that makeup proteins in the bodies of animals – humans inclusive.

    L-aspartic acid is the other isomer that forms aspartic acid and it is responsible for the manufacture of proteins in the body. D-aspartic acid on the hand is available in the nervous and endocrine system. It plays a significant role in the neuroendocrine system. It secrets hormones that are essential for various physiological processes such as metabolism, reproduction, homeostasis among others.

    Note that D-aspartic acid does not play any role in protein production. However, it is imperative for brain and nerves development. While there is limited scientific research about aspartic acid uses. It can be useful in improving athletic performance, reduce tiredness, increase muscles strength, among other things. D-aspartic acid can boost the production and release of testosteron. Therefore, it is often used in the production of testosterone boosting supplements. Although aspartic acid exists naturally, it is also available in foods rich in proteins such as beef, fish, eggs, chicken, and more.

    D-Aspartic Acid Effects on Testosterone

    We’ve mentioned above that since d-aspartic acid plays a significant role in increasing testosterone production. It is commonly used in the manufacture of testosterone boosting supplements. To date, little research on the effects of d-aspartic acid on human testosterone has been done. There is a mix of findings that bring confusion. Some research indicates that d-aspartic acid can boost testosterone level. Others show that it doesn’t while some suggest that it lowers the levels.

    Previous research shows D-aspartic acid raise testosterone significantly in a group of sedentary men with low testosterone levels. It regulates the release and synthesis of luteinizing hormone and testosterone in the body.

    In a clinical study involving 23 men aged between 27 and 37 years over a period of 12 days. Levels of testosterone in 20 men significantly increased by 42%. However, these men initial testosterone levels were low. The D-aspartic acid supplement was stopped for three days and when testosterone levels were examined, it was found to be 22% higher than the start day.

    On the contrary, another study involving 20 men with resistance training reported different results. These men were subjected to taking 3g dose of d-aspartic acid supplement for 29 days with hard training. There was no difference in the levels of total and free testosterone. D-aspartic acid did not affect anabolic (increase in skeletal muscle).

    Further Studies

    Another study was carried out to investigate the effects of two different dosages of d-aspartic acid on testosterone levels of hard-trained men. A daily dose of 6 grams of d-aspartic acid decreased the standards of the hormone while a dose of 3 grams of d-aspartic acid had no effects on the levels.

    A similar study was conducted to check the effects of taking-aspartic acid supplements for over a month. Surprisingly, men aged 27-43 who took the supplement for 90 days experienced testosterone increase between 30% and 60%.

    From these studies, we can say that d-aspartic acid is likely to increase testosterone in men with low testosterone levels. Unfortunately, d-aspartic acid does not increase testosterone level in resistance-trained men. However, more research should be carried out to prove these findings.

    Does D-Aspartic Acid improve response to exercise?

    What happens when d-aspartic acid is combined with hard exercises? Some studies have been performed to find out whether d-aspartic acid can improve response to training. The assumption that muscle can increase or gain mass due to an increase in testosterone is not valid. First, no evidence shows that d-aspartic acid may help boost strength. Besides, the studies showed that taking d-aspartic acid supplements had no effects on men performing weight training. The study examined men after 28 days of resistance training. The training was done four times per week while taking 3 g of d-aspartic acid.

    D-Aspartic Acid Benefits

    Apart from boosting testosterone, what else can we benefit from d-aspartic acid? Does d-aspartic acid boost fertility? Can it improve the brain or cause damage to it? Let’s find out.

    Does d-aspartic acid boost fertility?

    There is no enough evidence to support this, though it is possible d-aspartic can help men struggling with infertility big time. One study involving 60 men with infertility problems showed a significant increase in sperm count in a period of three months. 27% of men who took part in the study had a considerable impact on their reproduction. Their partners got pregnant. As much as there were positive results – there’s still need to do more research on d-aspartic acid and fertility. 27% of 60 men is almost negligible.

    D-aspartic acid effects on the brain

    Unfortunately, research carried out about d-aspartic acid effects on the brain was in mice. The study shows that high d-aspartic acid levels promote proper brain development. It is also useful in the production of nerve signals, store memories, and stimulate new brain connections – all these in mice. However, supplementation of d-aspartic acid can be harmful to the brain. All in all, this amino acid improves brain development in humans.

    D-aspartic acid Hormonal Effects

    Although these effects haven’t been examined in humans – d-aspartic acid not only enhance the production of testosterone, but also stimulate the production of hormones. They include progesterone, luteinizing hormones, growth hormone, prolactin, and oxytocin in mice.

    D-Aspartic Acid Side Effects

    To date, there are no reports of adverse side effects of d-aspartic acid. However, some men using d-aspartic acid supplements have experienced some headaches. Also, anxiety, irritability, and depression have been reported. Currently, there is no enough data on side effects of d-aspartic acid. However, original research indicates that there are no safety concerns. Hence, d-aspartic acid is safe to use for a period of three months.

    D-Aspartic Acid Dosage

    The recommended dosage for d-aspartic acid is between 2.6 grams and 3 grams daily. However, significant results were only observed in inactive men who took 3 grams of d-aspartic acid. For physically fit men – the same amount had no effects. Conversely, larger dosages of twice the initial dosage were also ineffective. Besides, in one study, instead of testosterone increasing, the levels decreased. In other studies, there was no change.

    If you’re planning to try d-aspartic acid, the standard daily dosage is 3 grams. But before you opt into using any supplement, always consult with your doctor.

    D-Aspartic Acid Reviews – What do customers say?

    D-Aspartic Acid may or may not work for you. Besides, if your testosterone count is not low, chances are, the product may not show any positive changes on you. That said, there are happy customers singing its praise. On the contrary, some are not happy with the product. Probably, these are guys who fall under the category of people who are likely not to benefit.

    For instance, one customer says the product works fine. But failure to follow directions may result to depression and anxiety. Be sure of violent diarrhea if you don’t take with food. Also, just like in one study above, one customer notes that d-aspartic acid does not increase testosterone levels for weightlifters. Take a look below for what others are saying and be the judge.

    Where to Buy D-Aspartic Acid

    D-Aspartic Acid is available in powder and capsules form. You’ll have to visit the manufacturer’s websites or online stores such as Amazon to buy this product. Note that there are different brands such as Nutricost and BulkSupplements. For instance, if you go for Bulksupplement, you can either buy 100 grams or 1 Kilogram pack. All at affordable prices.

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    Conclusion

    Is d-aspartic acid worth trying? Studies show that consumption of the appropriate amounts by inactive men has positive results. There is a significant rise in the testosterone levels. A little research also indicates that d-aspartic acid has a positive impact on infertile men. It boosts sperms production and mobility. Caution though, should be observed as there is no sufficient evidence to prove these results. D-aspartic acid reduces testosterone levels in men with hard-training. To some, there was no change at all.

    Most of the d-aspartic acid studies involved mice – few that were tested on humans needs more work done regardless of the findings. For instance, the population involved was quite small. Also, every man has different DNA; hence you can’t expect all to respond the same to tests. However, men with lower testosterone levels can be free to try d-aspartic acid supplements. Make sure to consult with your doctor first before committing to anything.

    FAQs

    Does DAA increase testosterone?

    Studies are clear that d-aspartic acid has positive results on men with low testosterone levels. These men had their testosterone increase after consuming the supplement. However, for resistance-trained men, there was no change, and to some, the levels dropped.

    What does D-aspartic acid do for you?

    D-aspartic acid plays a significant role in men’s body. It facilitates the production and release of hormones in the body. These hormones are essential in the secondary appearance and function of the male bodies.

    Does D-aspartic acid make you gain weight?

    Different studies have different opinions. In one study, consumption of 3 grams daily showed no change in body weight, no increase in muscle mass and testosterone levels. In another study, there was a slight increase in muscle mass but not body weight. However, there is a need for more in-depth research to prove these findings.

    Is it safe to take D-aspartic acid?

    Yes. It is safe to take d-aspartic acid. Consuming the right amounts is okay, besides, there are no reports of side effects, and the component is form naturally in the body.

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    About Dr John

    Dr John Apolzan is a medical professional with over 10 years experience in nutrition holding a PhD in Foods and Nutrition at Purdue University, IN, USA. Dr John is a published medical author and his work has been published on a number of medical publications including BMJ and FreeMedicalJournals.com. His clinical research specialises in investigating nutrition-related medical conditions from obesity down to eating disorders like anorexia and bulimia. He has carried out extensive research into how food supplements can enhance and help to sustain weight loss in patients. His passion for nutrition has led Dr John to start this website in order to spread his knowledge and help other individuals in their weight loss journey.