Tuesday, October 16, 2007

Part 4: Androstenedione

You can buy this in pharmacies and supposedly stimulates production of endogenous testosterone, enables more intense training, helps build muscle mass and rapidly repairs tissue injury.

It is a prohormone and only a step from the biosynthesis of testosterone.

Little evidence support androstenedione's ergogenic effectiveness and anabolic qualities. Research has shown no favorable effect on muscle mass or body composition

However, it can impair the blood lipid profile of healthy men and cause androgenization of female athletes.

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