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Author Topic: D-Aspartic Acid  (Read 3009 times)

mkn2f

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D-Aspartic Acid
« on: February 06, 2012, 07:54:06 am »
My question:  What is the difference between D-Aspartic Acid and Aspartic Acid?  From your discussion on whey, aspartic acid is bad.  inadvertently flooding my system with excitotoxins. That's right - glutamic acid and aspartic acid are just the downstream versions of monosodium glutamate and aspartame.  You also indicate that D-Aspartic Acid has been shown to be good.  a 33% increase in testosterone (and leutinizing hormone).  Could you please distinguish the two for me.
 
Also if D-Aspartic Acid differs from aspartic acid and is essentially good, I was thinking about the combination of [] for estrogen blocking in combination with D-Aspartic Acid.  I have read that D-Aspartic Acid could increase estrogen in addition to the significant increase you mention in testosterone. 

Can you comment on all of that?

PeakT

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Re: D-Aspartic Acid
« Reply #1 on: February 06, 2012, 07:41:09 pm »
It's the free from of L-aspartate and L-glutamate that are the excitotoxins.  I don't think in this case that you can assume that this is a free form.  One of us may have to call the manufacturer, though, to get the straight scoop.

My understanding is that L-aspartic acid is actually converted to the D form.  More importantly, though, is the fact that "D-aspartic acid is a physiological amino acid occurring principally in the pituitary gland and testes and has a role in the regulation of the release and synthesis of LH and testosterone in humans and rats.."

according to the following study:

Reprod Biol Endocrinol, 2009 Oct 27;7:120, "The role and molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and rats"
If you are on medications or have a medical condition, always check with your doctor first before making any lifestyle changes or taking new supplements. Yes, low T and E.D. are usually medical conditions.  There are potential risk with HRT:  http://www.peaktestosterone.com/testosterone_risks.aspx.
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Re: D-Aspartic Acid
« Reply #1 on: February 06, 2012, 07:41:09 pm »

Life Extension's Prelox (Pycnogenol + Low Dose Arginine): Life Extension - Prelox - 60 Tabs (Pack of 2)


kcwebguy

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Re: D-Aspartic Acid
« Reply #2 on: May 14, 2012, 11:50:35 am »
So.... is D-Aspartic Acid good or bad?

PeakT

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Re: D-Aspartic Acid
« Reply #3 on: May 14, 2012, 06:58:14 pm »
So.... is D-Aspartic Acid good or bad?

No one knows for sure - it's a relatively "young" supplement.  Remember though:  aminos are always more powerful than what we think.
If you are on medications or have a medical condition, always check with your doctor first before making any lifestyle changes or taking new supplements. Yes, low T and E.D. are usually medical conditions.  There are potential risk with HRT:  http://www.peaktestosterone.com/testosterone_risks.aspx.
My Health History: http://www.peaktestosterone.com/My_Health_Story.aspx.
And check out my new Peak Testosterone Program on the right side of my home page: http://www.peaktestosterone.com.

FightLowT

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Re: D-Aspartic Acid
« Reply #4 on: May 16, 2012, 07:13:37 pm »
I've tried it..Did it increase LH? Yes..But not to the degree that I saw any notable increases in serum testosterone like I would see from HCG. You can buy it on amazon. Look up TEST FORCE 2 by the manufacturer Epharm. It's worth a shot in my honest opinion and the research is at least significant enough to back up it's claims at raising testosterone through increased LH output of the pituitary..

PeakT

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Re: D-Aspartic Acid
« Reply #5 on: May 16, 2012, 07:30:48 pm »
FightLow:  I agree in general with what you are saying, but, again, aminos are much more powerful than we think generally.  I can almost guarantee you that taking this will change ten other chemical ratios that we have little understanding over.  Think how powerful Leucine is - just a couple of grams.  Think how powerful Lysine is - again, just a couple of grams.  I'm not saying it's bad, but I don't think we should be completely casual and think it's the equivalent of taking a chewable calcium...

Now, that said, supposedly the D form is not really utilized.  But, if that's true, then why does it raise testosterone?  So something isn't adding up and I haven't been able to find the answers to those kind of questions.

D-Aspartic Acid apparently works by increasing the STAR enzyme in order to boost testosterone.  However, what is not commonly known is that it increase aromatization according to some studies.
If that's true, then that's potentially quite ugly. 

Most importantly, think how many things this supposedly inert form of aspartic acid is changing.  This is just the beginning:  over the years they will find other things that D-Aspartic Acid changes as well and I doubt that it's all going to be good.

Here are several studies that discuss the aromatization issue:

http://www.reproduction-online.org/content/121/5/803.short
http://joe.endocrinology-journals.org/content/182/2/365.short
« Last Edit: May 16, 2012, 07:43:58 pm by PeakT »
If you are on medications or have a medical condition, always check with your doctor first before making any lifestyle changes or taking new supplements. Yes, low T and E.D. are usually medical conditions.  There are potential risk with HRT:  http://www.peaktestosterone.com/testosterone_risks.aspx.
My Health History: http://www.peaktestosterone.com/My_Health_Story.aspx.
And check out my new Peak Testosterone Program on the right side of my home page: http://www.peaktestosterone.com.

Peak Testosterone Forum

Re: D-Aspartic Acid
« Reply #5 on: May 16, 2012, 07:30:48 pm »