Will Androstenedione Help Me Build More Muscle Mass?

10 men were given 300 mg of androstenedione for 8 weeks while strength training. During that time period, they gained no more muscle than 10 men who were taking a placebo. However, the men taking androstenedione supplements experienced a decrease in HDL cholesterol (the “good” cholesterol).

Source: Journal of the American Medical Association, 281: 2020, 1999.

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