I have been taking vitamin K (Life Extension, K1 and K2), vitamin E (Solgar, all vitaminers) and vitamin A (25K IU retinyl palmitate) for about 3 weeks and didn't feel anything at all besides it helping to remove my tooth ache after a week or so.
The reason for mentioning this is that all 3 of these alone have some evidence for increasing male hormone levels.
Then I added vitamin D 20,000 IU (cholecalciferol) and an hour or so after that I could feel an increase in testosterone (relaxed, got a spontaneous erection).
I'm on my third day of the vitamin D and I can still feel an increase in male hormones (frequent and strong erections).
I also have less asthma attacks, and it helps ever so slightly with my congested nose and watery eyes.
Does vitamin D consistently increase testosterone or does the effect wear off? I know zinc, boron and many other supplements only work for about a week.
And does increasing the dosage from 20k IU have a bigger effect on testosterone?
It also seems that vitamin D is messing up my sleep via the 5ht2a receptor, which sucks.