I suggest the OP adds “-- take the survey whether or not you use supplements” to the title.

Note that 'caffeine from beverages' is listed as a supplement, but it's midway down the list. So many people like me who don't think they take any 'supplements' will likely miss it. I suspect this will be a big source of error as well.

I thought about it, but it would multiply the number of necessary options insanely.

I upvoted you. Don't know if that makes it a social norm or not.

this link

Here, thanks to Gwern.

For non-smart drugs start by getting lots of cheap medical tests on things like your vitamin D level, magnesium level, lipid profile and whatever else your doctor recommends.

For smart drugs: http://www.reddit.com/r/Nootropics/ and as Sjcs writes Wikipedia and Examine.

Gwern has some good summaries/meta-analyses.

You could start with the Quantified Health Prize Winners.

Although I would consider myself as a supplement novice, I generally look into supplements based on other peoples recommendations whenever I stumble upon them, and then look them up on Wikipedia and Examine. I occassionally go looking (via google) specifically for peoples' negative reviews of the supplement to check for significant adverse effects that might not have been made clear.

I realise this is obvious, but if anyone were to experiment with supplements be very aware of placebo effect and confirmation bias.

I tried that, that internal LW polls don't allow multiple selections