I'm still unclear of the propecia dosage. Here's a different source :
"Black Tea consumption, according to this study done on mice at Harvard University lowered DHT levels by 72% and raised testosterone by 35%. Finasteride, (Propecia/Proscar) reduces DHT levels in both male humans and rats by 70%.
Although the DHT lowering effect of Black Tea `was not mentioned in the abstract, we obtained and reviewed the
Soy Phytochemicals and Tea Bioactive Components Synergistically Inhibit Androgen-Sensitive Human Prostate Tumors in Mice1
Nutrition/Metabolism Laboratory, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
ABSTRACT
Although high doses of single bioactive agents may have potent anticancer effects, the chemopreventive properties of the Asian diet may result from interactions among several components that potentiate the activities of any single constituent. In Asia, where intake of soy products and tea consumption are very high, aggressive prostate cancer is significantly less prevalent in Asian men. The objective of the present study was to identify possible synergistic effects between soy and tea components on prostate tumor progression in a mouse model of orthotopic androgen-sensitive human prostate cancer. Soy phytochemical concentrate (SPC), black tea and green tea were compared with respect to tumorigenicity rate, primary tumor growth, tumor proliferation index and microvessel density, serum androgen level and metastases to lymph nodes. SPC, black tea and green tea significantly reduced tumorigenicity. SPC and black tea also significantly reduced final tumor weights. Green tea did not reduce final tumor weight, although it tended to elevate (P = 0.14) the serum dihydrotestosterone (DHT) concentration. The combination of SPC and black tea synergistically inhibited prostate tumorigenicity, final tumor weight and metastases to lymph nodes in vivo. The combination of SPC and green tea synergistically inhibited final tumor weight and metastasis and significantly reduced serum concentrations of both testosterone and DHT in vivo. Inhibition of tumor progression was associated with reduced tumor cell proliferation and tumor angiogenesis. This study suggests that further research is warranted to study the role of soy and tea combination as effective nutritional regimens in prostate cancer prevention.
Although the DHT lowering effect of Black Tea `was not mentioned in the abstract, we obtained and reviewed the entire study including this revealing snippet:
Combined effects of soy phytochemicals and tea on serum testosterone and DHT concentrations.
揗ice treated with black tea tended to have a greater serum testosterone concentration (34.4%, P = 0.50) and had a 72% lower DHT concentration than controls (P < 0.05), suggesting that black tea may contain components that inhibit the activity of 5 -reductase, an enzyme that converts testosterone to the more bioactive DHT.�
This study also showed that the consumption of Green Tea as a beverage combined with Soy Isoflavone Concentrate significantly reduced DHT levels, and to some degree testosterone. Curiously it was found that the singular consumption of Green Tea raised both testosterone and DHT levels.
The implications of potential benefits to humans with Androgenetic Alopecia are profound.
It would appear reasonable based upon these findings that exclusive consumption of Black Tea or Black Tea Extract (Theaflavins) would likely reduce serum DHT to the same level as Propecia, and that the concurrent consumption of Soy Isoflavones or Soy Isoflavones with Green Tea would produce an additive effect. The effects of Black Tea Theaflavins /Soy Isoflaones, or Black Tea Theaflavins/Soy Isoflavones/Green Tea, on testosterone levels remain unclear."
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