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Alpinia galanga, a kitchen spice that increases testosterone levels
Laos powder, found in every supermarket, is made from the roots of the Asian plant Alpinia galanga. This plant is related to Alpinia officinarum, ginger and turmeric. And just like ginger and turmeric, Alpinia galanga may increase testosterone levels. At least we deduce this from an animal study that researchers at Shahid Sadoughi University in Iran published 6 years ago in the Iranian Journal of Reproductive Medicine.
Study
The researchers used an alcohol-based Alpinia galanga extract they made themselves. For 56 days, they gave the extract to rats at a dose of 100 and 300 milligrams per kilogram of body weight daily.
If the rats had been human adults, in the case of the 100 milligram dose, they would have received about 1000 milligrams of extract per day.
Results
The extract increased the quantity and quality of the sperm cells. The researchers find this interesting. They hope that Alpinia galanga can help infertile men.
The supplement increased the body weight of the rats. We suspect that this increase is due to the fat-free mass of the rats.
The extract increased the concentration of total testosterone and FSH in the blood of the rats. The data from the Iranians suggests that the optimal dose of Alpinia galanga to raise testosterone levels may be less than the tested 100 milligrams per kilo of body weight.
Conclusion
Manufacturers of bodybuilding supplements sometimes put Alpinia galanga in products that are supposed to raise testosterone levels. We don't rule out that those supplements work.
Source:
Iran J Reprod Med. 2014 Nov;12(11):765-70.
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