As a few might know, I have been following a diet void of simple carbs for 2 years, where the majority of them was coming from oatmeal, (and no cheat meals whatsoever) - i.e. a diet where blood sugar was always kept almost constant, with no ups and downs.
A while ago, I started noticing a small decline in my libido.
After numerous blood tests, I could not understand what the problem was because my total test was always in the higher end of the spectrum (between 700 and 800 ng/dL), but OTOH free test was on the lower spectrum.
Estradiol has also always been quite low. I knew there was hence something more complex to look at.
I tried a few supplements, of which TongKat Ali, tribulus, and Avena Sativa - all of which did little to improve the situation.
I also reduced my training and cardio frequency, thinking that I was maybe overtraining.
Later on, I read a study somewhere, where they showed a significant correlation between insulin and SHBG - the more insulin you secreted, the less SHBG you had.
So after 2 years of controlling insulin via diet, I decided to take the plunge and started using dextrose for post-WO nutrition.
After one month of doing so, I feel like a 17 y.o. again, wanting to do all women around..
I will do another blood test soon; it will probably confirm my feelings with a much increased value for free test.
This experience of mine showed that diet has indeed a very important role to play in the HPT axis and other factors controlling sex hormones.
I know a few of you have adopted the "no malto/dextrose" approach to your nutrition that we have been preaching for quite a while, so this was just to give another critical view of it.
I am not saying that you should start replacing all complex carbs with sugar, but it could be beneficial to use some for post-WO nutrition.
The body is such a complex machine, where finding the perfect balance is often more complicated than we think - even when eating what we believe is the "best" and "cleanest" diet, we still discover later on that it is important to keep an open view to the whole science behind human physiology.
We always want to look for drugs/supplements to help us cure a certain problem, whereas there could most definitely be an easy and natural solution to it. Just a question of digging some.
I might have expanded a bit too much and went off-topic. Sorry about that.
Thread: SHBG, Libido, and Insulin