These types of questions will usually only elicit anecdotal evidence. I'm no different. I use d-aspartic, trib, Vit D megadose, to try and boost T levels from time to time. I have had positive effects from all, e.g. increased libido, bit extra energy/performance in gym, etc, but trying to gauge what is responsible for this is guesswork at best.
If memory seves me right Bushidobadboy posted on another thread claims from a coach he knows of a sports team who had increased T levels (verified through blood work) following d-aspartic supplementation). Forgive me BBB if I have misquoted you!
My general advice is to concentrate on the main variables first, i.e. quality food, hydration and rest. Ensure good mineral intake, and consupmtion of anti-estrogenic foods, e.g. greens, cauliflower, etc.
I genuinely believe vit D megadosing can work. I have tried a few protocols, including Poliquin's recommendations, as well as daily dosing around the 2500iu mark, but have switched to the formula suggested by John Meadows, i.e. 10,000iu daily for a week, then same quantity once per week. This seems to work for me.
I use d-aspartic acid (3g powder) on an empty stomach occasionally when I can be bothered. Strangely I have found the more frequently I use this the less I notice any effects, so I just use it now and again.
I tried trib recently for 7 days and felt my libido was way up. My girlfriend would verify this - although probably take the credit, and she may have a point!
Interestingly, I have discovered a supplement that's looks of great interest. I would consider purchasing this but would be interested to hear some views on the contents. I'm naming no brand, etc, so assume the Moderators will have no issues:
Mucuna Pruriens: 200mg
Beta Ecdysterone: 30mg
Methoxy Isoflavone: 20mg
D Aspartic Acid: 250mg
Any thoughts on ths potential efficacy of this?