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Androstenedione





Consumer Review: This Scientific Study Proves That Andro Does Not Increase Testosterone Leves In Young Males.
Take a look at this well designed scientific study:

Can J Appl Physiol 2000 Feb;25(1):68-78
The acute effects of androstenedione supplementation in healthy young males.
Ballantyne CS, Phillips SM, MacDonald JR, Tarnopolsky MA, MacDougall JD
Department of Kinesiology, McMaster University, Hamilton, Ontario L8S 4K1.

We examined the effects of androstenedione supplementation on the hormonal profile of 10 males and its interaction with resistance exercise. Baseline testosterone, luteinizing hormone, estradiol, and androstenedione concentrations were established by venous sampling at 3 hr intervals over 24 hr. Subjects ingested 200 mg of androstenedione daily for 2 days, with second and third day blood samples. Two weeks later, they ingested androstenedione or a placebo for 2 days, in a double-blind, cross-over design. On day 2, they performed heavy resistance exercise with blood sampled before, after, and 90 min post. The supplement elevated plasma androstenedione 2--3-fold and luteinizing hormone approximately 70% but did not alter testosterone concentration. Exercise elevated testosterone, with no difference between conditions. Exercise in the supplemented condition significantly elevated plasma estradiol by approximately 83% for 90 min. Androstenedione supplementation, thus, is unlikely to provide male athletes with any anabolic benefit and, with heavy resistance exercise, elevates estrogen.

Publication Types: Clinical trial Randomized controlled trial

PMID: 10683601, UI: 20149342


Response #1
It is true that andro (or even the nor-19's) don't work. I know because both my friend and I have used it for one cycle and have seen no gain in muscle or even an increase in energy during workouts.


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