Any negative effects of high dose L-arginine?

  1. Any negative effects of high dose L-arginine?

    While at the gym the other day, I was talking to a good friend of mine. I noticed that his vasculrity is much improved - from almost nothing to veins popping out in all the right places. He said that he had been taking 9g of L-Arginine a day for some time, and that the effects were awesome.

    From what Ive read, this is very effective for improving vascularity. (the 'po-mans' NO2) Something that I could really improve on.

    Are there any negative side effects (short or long term) from ingesting so much L-arginine? What are its effects on blood-pressure?


  2. Good question. This is something that I have been looking into myself. Arginine has the most nitrogen of any of the other 20 common aa's. It seems, on the surface, to be a good aa to supplement and see how it works. I am not aware of any harmful side effects, but I'm not sure.

  3. Many people have tried it, I might just give it a go. You can get a pound of the powder pretty cheap from Dps. The friend of mine who uses is it has been on it for a while, he's around 50 yrs old and looks awesome.


  4. this may help:

    -It has been shown to help lower blood pressure, treat hypertension and promote wound healing

    - Diabetics and borderline diabetics should use growth hormone releasers with care. L-arginine and L-ornithine might improve or worsen a diabetic condition.

    - Persons who have not completed their bone growth (children and teenagers) and pregnant or lactating Women should not use GH releasers except under a physician’s supervision.

    - L-arginine and L-ornithine sometimes reactivate latent herpes virus infections. Therefore, persons who have had ocular or brain herpes should not use them.

    - Those with certain psychoses may experience worsened symptoms if they take L-arginine or L-ornithine supplements.

    - Always take antioxidants with arginine.

    -There have been 1or 2 studies i have read that state that it and ornithine compete with each other to cross the blood-brain barrier so take them 2-3hours apart when taking them. I will look for where i read that if you need me to. Just say the word!!!


    Last edited by jhov; 10-18-2003 at 09:54 PM.

  5. jhov,
    if you dont mind posting the source, that would be great



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