Something interesting to note. The 42% increase in testosterone could have been higher except that 20 or or 23 had test increased. In the same study. 20 out of 23 had increase in LH. Could these 3 ppl have a different endocrine problem in which daa wouldn't work for them so for those it can work the percentage would be higher. Also daa stimulates the release of gh which in turn inhibits shbg which then raises free test levels... Seems like a solid product