Morning Isabelle,
So this morning I was trying to find the half-life of xanthohumol.
I found this .....
http://lpi.oregonstate.edu/fw10/vitamincbeer.html
A few key points are these ....
"We have measured pharmacokinetics in a handful of people and found that xanthohumol is absorbed and may be distributed to the tissues, which seem to hold onto it for a long time. It has a long half-life in the body. Although the plasma levels are relatively low, tissue levels may be much higher. Low plasma levels don't necessarily imply a lack of biological activity."
So it seems to last a long time in your body although not in the blood stream
"It is found in any beer that is produced from hops but not in dietary plants. It's not found in beers that are made from hop extracts."
What? Not found in Plants !!! Only in Beer !!! And Not from Beer Made from Extracts !!!
"Prenylnaringenin was identified as a metabolite of isoxanthohumol, which is the isomer made from xanthohumol when you brew the beer. However, the level of prenylnaringenin in beer is very low, and it's very doubtful that the low amount in beer would be estrogenic in people. In the last couple of years, studies have shown that some people have certain micro-organisms in the gut that are able to convert isoxanthohumol into prenylnaringenin. Xanthohumol supplements in those people may be problematic, but the amount in beer is not a concern."
So again it's the "Brewing Process" that appears to create some of the chemicals ????
Even though it wasn't an EXTENSIVE Study it did seem like a credible source.
The only way that I may be able to prove anything is to come up with a regime of Hops and Testim ... nothing else ... using an amount of Testim that I already have had blood test for ... stay on that regime for say 2 weeks, and get another blood test. I just don't know if I want to have to explain anything if the results are off the charts.
I may just stop reading
karen