What we do know is that significant doses of LL help a good number of people for whatever reason & has not been shown to hurt anyone.
I take supplements ( not free or investigated) daily. Maybe they help, maybe they don't? Who knows? They maybe killing me? FDA doesn't know. Docs do not opine ( maybe laugh a little).
I simply find it amusing.
If I were to make a point & truly believed it was all about saving lives, I would suggest mixing it with vitamin B & selling it over the counter. We would probably gain more revenue.