Interested in this as I have had consistently poor reactions to CDG, especially pre TRT. Unfortunately I did not get blood work to back it up, but noticed a sharp decrease in mood and libido.
It's much less evident on TRT but I definitely have not noticed any significant or positive changes.
Also after years of experimenting with tons of supplements, the only 2 I still take that actually do something, and don't cause issues are vitamin D3 (and just 2000IU), and magnesium. Needless to say I've become less interested in using my time and money experimenting.