I've been amused by the GNC (America) practice of having supplements appealing to different markets in separate alcoves-- there were (at least) body builder, new age, bargain, science (sciency?),.... I didn't check to see how many of their supplements were the same things in different packages in various alcoves.
They had one additional clever bit-- the supplements had a life-sized silhouette of the capsule printed on the package so you could see whether they were a size you wanted to swallow.
I just stopped by a GNC, and it's changed quite a bit. I remember GNC (some 15 or 20 years ago) as having a roughly equal balance of sections. Now it's predominantly for athletes and body builders. There's an herb section, and that's the last faint echo of New Age.
Since it turns out that it isn't feasible to include check as many as apply questions in the big survey, I'm asking about supplements here. I've got a bunch of questions, and I don't mind at all if you just answer some of them.
What supplements do you take? At what dosages? Are there other considerations, like with/without food or time of day?
Are there supplements you've stopped using?
How did you decide to take the supplements you're using? How do you decide whether to continue taking them?
Do you have preferred suppliers? How did you choose them?