CLIFFS:
* The ball got rolling after an Italian study showed that supplementation with 3 g sodium-D-aspartate boosted testosterone levels in elderly men.
* Supplement world goes bonkers for DAA
* People using it don't notice anything dramatic
* Studies keep pouring in it doesn't work
Personally, I never used it. It fit the HMB pattern when it debuted, as in MOST supplement companies picked it up. MASS didn't

We all have our favorite test boosters, but I'm posting this in the hopes you steer clear. "Tried and True" and bloodwork are still my measuring sticks...