I always get frustrated when new studies come out saying 85% of supplements do not conform to label claims and/or contain undisclosed drugs. Obviously the contamination is going to be high when you look at just "muscle building supplements" or "herbal supps for sex drive" but still.
I've been enjoying a certain posters posts on reddit. He seems to know his shit, but he has his own supp company so factor that in. But he says he has very extensive testing of a ton of competitors products and he says not a single one has always met label claims, except one, Thorne. "So far."
Problem for me is that Thorne is about 3x the price of other supp brands lol. I think there were a few Thorne fans here.
Maybe this is not interesting to most but maybe someone here cares mildly. One infuriating example he mention is these chelated minerals. He says most of the time a magnesium compound, say mag malate, is just magnesium and malate mixed together, not what the sell it as, and the mag is probably just mag oxide with shit bioavailability.
One highly interesting case, at least to me, was this "turkesterone" craze. Turns out, what the poster asserted long ago, turned out to be true, there is ZERO real turkesterone on the market. Now did these supp companies apologise, recall product, give refunds etc? Of course not. One example concerns "our" circle, JP continues to sell "turkesterone" from what I saw last time I checked. I saw someone suggest testing Emeric's Ecdy supp but I don't know if he ever did, he doesn't mention names a lot of the time but he's also said anyone is welcome to sue him.
The poster on reddit calls himself MisterYouAreSoDumb.
Here's him talking about his testing testing lab. If some of the sciency guys here takes a look I'd be interested in opinions. I'm too stupid to know how to give a link to the actual threads, but he has one on turkesterone from 2 years back and one on "independent testing" one year ago.