So to summarize the list which could be useful to most people beyond Rapamycin (looking for corrections):
o. Vitamin D (I take 5k units/day)
o. Vitamin B3/12 (I don’t take, but probably just laziness)
o. Vitamin K2 (I don’t take, but probably just laziness)
o. Creatinine (I don’t take, but eat sufficient animal protein including liver)
o. Selenium (I don’t take but eat Brazil nuts, not as a supplement)
o. Magnesium (I don’t take but probably just laziness)
o. Omega-3 (I’m not taking this and never fully understood this because 3g of fish/krill oil per day is a drop in the bucket versus the fats I eat daily, so how does this move the needle? Also, I’m careful about not eating seed oils, and believe my intake of omega-3 vs 6 is probably pretty decent)
o. Metformin (I’m not taking but I am trying citrus bergamot because of high LDL from doing a “temporary” carnivore diet which appears to have muscle-building benefits, but am considering just taking metformin instead — even if LDL falls — because of possible longevity and atherosclerosis / cancer protection)
Supplements there doesn’t seem to be consensus on (not that they don’t work, only that people didn’t massively chime in supporting them):
GlyNAC (I’m taking low-ish dose but don’t see any impact)
fisetin
spermidine
CoQ10
Boron
Fiber
Collegen
Acarbose
astaxanthin
Hyaluronic acid
Melatonin
@RapAdmin : does this make sense to try a vote on these? — list a huge number of supplements and we can check off which we take (or which we think are effective)? Then you can use the data to issue a press release to market your site/work, or even a research paper if you get enough responses.