Melatonin lowers testosterone?

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    Melatonin lowers testosterone?



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    Interesting- I have taken it for years and I stay pretty jacked
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    Ya, I thought the theory was that a deeper sleep allows your body to produce the testosterone it needs.
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    me too- guess we were wrong
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    It has been shown too increase prolactin in humans. I havent seen any studies regarding testosterone, and humans, for what its worth.
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    0.5mg/kg = 50mg for a 220lb person. Huge dosage, although I'm not sure how to translate the rat dosage into human terms.
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    Quote Originally Posted by Screwtape View Post
    0.5mg/kg = 50mg for a 220lb person. Huge dosage, although I'm not sure how to translate the rat dosage into human terms.
    50 mg would probably **** you up there is an equation to translate surface area and mg/kg from rats to humans- I will look around for it....
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    Quote Originally Posted by futurepilot View Post
    It has been shown too increase prolactin in humans. I havent seen any studies regarding testosterone, and humans, for what its worth.
    There also was a human study where melatonin taken orally pre-workout increased GH levels. If estrogen regulates GH, is there a link between the lower testosterone and high GH?
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    Quote Originally Posted by dfohio View Post
    There also was a human study where melatonin taken orally pre-workout increased GH levels. If estrogen regulates GH, is there a link between the lower testosterone and high GH?
    I cant really say for sure. Im not really positive on the relationship between GH and test. But as far as I know they're not mutual exclusive, meaning one doesnt have to be high, for the other too be low.
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    Quote Originally Posted by Delita420 View Post
    Ya, I thought the theory was that a deeper sleep allows your body to produce the GH it needs.
    Fixed.

    I've never heard about it inhibiting Testosterone, I've usied it in a blend (Scivation Knockout) and I haven't noticed any regression in the gym or in the bedroom.

    I know it does promote REM Sleep and to release Growth Hormone.

    I've heard about people using it for Pre Workout to spike GH, but I haven't tried it myself.
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    Quote Originally Posted by sp447 View Post
    Fixed.

    I've never heard about it inhibiting Testosterone, I've usied it in a blend (Scivation Knockout) and I haven't noticed any regression in the gym or in the bedroom.

    I know it does promote REM Sleep and to release Growth Hormone.

    I've heard about people using it for Pre Workout to spike GH, but I haven't tried it myself.
    GH? Good deal!
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    Isnt normal dosage 3 to 6 mg?

    50mg...........jeezzz louise.
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    Yes, normal dosing is 3 to 6 mg.
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    I'd go into a coma if I took 50mg.
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    Research shows that melatonin is effective at even less than 1 mg.
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    so this study is based on doses given to rats that equal 50mg to people? that is 10x what a sane person would take, where is the relevance?
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    Someone else is talking about rats. I'm not.
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    I take 1mg before bed so I don't think I have to worry about this.

    BTW, experiments on humans have been done with 6 GRAMS of melatonin with no signs of toxicity.
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    Quote Originally Posted by dfohio View Post
    There also was a human study where melatonin taken orally pre-workout increased GH levels. ...
    Muscletech is always talking about this study...adding Melatonin to everything they make..lol
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    Quote Originally Posted by JohnnieFreeze View Post
    Muscletech is always talking about this study...adding Melatonin to everything they make..lol
    You mean Yohimbine.....

    I know they put Melatonin in their new testosterone booster, I saw it the other day and laughed at the ingredients.
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    Quote Originally Posted by sp447 View Post
    You mean Yohimbine.....

    I know they put Melatonin in their new testosterone booster, I saw it the other day and laughed at the ingredients.
    they also put it in their Leukic and God knows what else.
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    The amount of testosterone secretion inhibition it would cause would be so minimal it would be much more worth taking melatonin for added sleep/energy that your testosterone levels would actually go up.
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    Quote Originally Posted by nattydisaster View Post
    The amount of testosterone secretion inhibition it would cause would be so minimal it would be much more worth taking melatonin for added sleep/energy that your testosterone levels would actually go up.
    I agree....also the possible GH boost could outweigh any miniscule test supression as well.
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    Quote Originally Posted by Kristofer68SS View Post
    Isnt normal dosage 3 to 6 mg?

    50mg...........jeezzz louise.
    0,5mg/kg in rats its not equivalent to 50 mg on humans but its still a overdose,
    I think this can help:
    Animal Dosage
    the way I see it is that a 0.5mg/kg on a 80kg human its equivalent to 40mg of melatonin so ...
    a guy that takes 4mg /day will be taking 0,05mg/kg, a lot less than the study dosage,if it still inhibits test , well that I don't know but its unlikely
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    Quote Originally Posted by nunes View Post
    0,5mg/kg in rats its not equivalent to 50 mg on humans but its still a overdose,
    I think this can help:
    Animal Dosage
    the way I see it is that a 0.5mg/kg on a 80kg human its equivalent to 40mg of melatonin so ...
    a guy that takes 4mg /day will be taking 0,05mg/kg, a lot less than the study dosage,if it still inhibits test , well that I don't know but its unlikely
    that's the one I was looking for...
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    Quote Originally Posted by rms80 View Post
    that's the one I was looking for...
    Yeah, this site is great , just add it to my bookmarks
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