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News--
Popular Supplements Improve Sperm Motility
Jul 08, 2004
NEW YORK (Reuters Health) - Combined treatment with
L-carnitine, a popular dietary supplement, and L-acetyl-carnitine, a related
chemical, appears to improve sperm motility in men with fertility problems,
according to a new study.
In the study, 60 infertile men between the ages of 20 and 40 years were
randomly selected to take a combination of L-carnitine and L-acetyl-carnitine or
an inactive "placebo" for 6 months.
In the medical journal Fertility and Sterility, researchers at the University
of Rome led by Dr. Andrea Lenzi report that 2 months after the completion of
therapy, men who took L-carnitine and L-acetyl-carnitine had increases in sperm
concentration, forward movement, and total movement.
The most significant improvements in sperm motility, both forward and total,
were observed in men who had the lowest levels of moving sperm when the study
began.
The researchers note that four spontaneous pregnancies were achieved during
the study by men who had taken the combination therapy.
"Combined treatment with L-carnitine and L-acetyl-carnitine... was effective
in increasing sperm motility, especially in groups with lower baseline levels
(of moving sperm)," the authors conclude.
SOURCE: Fertility and Sterility, June 2004.
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