I think this is relevant to HN given the widespread use of various supplements in the community. It is also interesting given popularity of Tim Ferris, Nootrobox, and other supplement enthusiasts.
Misleading title. Nothing to do with supplements per-se.
"Contaminated supplements can make you sick", but I guess this is too obvious to attract any reader.
Umm, no. That's only the first few paragraphs. The rest is about the side effects of things like green tea extracts, caffeine powder, etc.