What Is D-Aspartic Acid And Does It Build Muscle

What Is D-Aspartic Acid And Does It Build Muscle?

What Is D-Aspartic Acid And Does It Build Muscle?

First Lets Start Off By Answering The Question Of “What Exactly Is D-Aspartic Acid?”

D-AA or D-Aspartic Acid is a regulator of the natural process called testosterone synthesis. D-AA is an aimno acid that acts as a stimulatory receptor.


This amino acid takes two forms. Either apastic acid or another from known as L-aspartate. D-Aspartic Acid has been known to help men in fertility based traits. The reason for this is because when taken as a supplement D-AA has been shown to increase testosterone in the body.

What does D-Aspartic Acid Do In The Body?

Typically infertile men will supplement with D-AA because of its testosterone boosting properties. D-Aspartic Acid will only increase testosterone levels for a week and a half when taken, afterwards testosterone levels return back to a normal level. The reason D-AA boosts testosterone levels is because it is naturally occurring in certain areas of the brain and testicles.

In the central regions of the brain it acts to release hormones like follicle-stimulating hormones, luteinizing homrones, and growth hormones. While in the testicles is regulates a process called testosterone synthesis. This process is what gives a small increase in free flowing testosterone in the body.

How Much Is Taken?

Certain studies of D-Aspartic Acid have been conducted and found that a dosage of 2,000 – 3,000 mg daily for 12 days is enough to boost testosterone in men.

However when D-AA is sold as a supplement different dosages will range depending on the supplement brand and if there are other ingredients added.

Studies that found that D-Aspartic Acid increased testosterone levels in the body:

A study conducted for 12 days found that supplementing with D-AA increased testosterone by a total of 15% on the 6th day and 42% on the 12th day from the users normal testosterone levels. Due to the finding within this study another experiment was conducted except it lasted a total of 90 days and found that taking 2.66 gram increased testosterone by 30-60% over their baseline levels.

D-Aspartate was studied on rats and found increased production of testosterone:

A study was conducted on rats to determine if D-Aspartic acid had any properties in production of testosterone. Reproductive hormone levels were monitored after the rats were injected with D-Aspartic acid. Reproductive hormones monitored throughout the study were testosterone, progesterone, and luteinizing hormones as well as D-Aspartic acid levels. The results showed that D-Aspatic acid accumulated within the rats testes and influenced the production of testosterone by 4 times the normal amount. This demonstrates that D-Aspartic acid has testosterone boosting benefits.

What Does Increased Testosterone Mean?

Increased testosterone in the body means increased protein synthesis. Protein synthesis is the naturally occur process in the body that allows single cells to build specified proteins.

When it comes to building muscle and muscle mass protein synthesis is very important. Protein synthesis will help repair muscle fibers that have been broken down through intense workouts and training. With higher testosterone levels, protein synthesis will be more effective.

Where can you by D-Aspartic Acid?

D-Aspartic Acid is sold in supplement stores as a natural testosterone booster. It is normally sold as a powder that can be mixed with water but can also come in pills. It is relatively inexpensive and can cost anywhere between $20-$40 depending on the brand and if there are more ingredients.


Most supplements dose D-Aspatic Acid as 2-5 grams a day. This will ensure that you are getting the proper amount to see benefits. It is recommended that you take D-AA thirty minutes to even an hour before working out. This will also ensure that it is in your system prior to training.

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