I am willing to entertain the possibility that specific supplements don't work, but saying that all supplements don't work for all people _must_ be an exaggeration.
Obviously, some things work for at least a subset of people. I admit it is hard to distinguish real effects from placebo, but stuff like... creatine, which someone mentioned earlier do work.
Kind of scaremongering. Yes, quality varies, but if you really want to be diligent it's easy to find what the good brands are, that are getting tests, have certifications, etc.
Most of the vitamin supplements are cheap to make, there's really no reason for the manufacturer to risk it with adulterated product.
Nothing on this page sounds like a resounding endorsement:
> An athlete should never consider any dietary supplement to be 100% safe. No third-party testing company can test for every possible prohibited substance. The NSF Certified for Sport program reduces, but does not eliminate, risk for athletes. It is still up to each athlete to determine whether they want to take the risk of using dietary supplements and USADA does not approve or evaluate dietary supplement products.
It also seems focused on illegal substances, not the purity of the product.
Sorry but this Forbes article is simply frustratingly wrong. So many people are deficient in Vitamin D. Of course it's preferable to take in 15 minutes of sunlight with exposed skin every day but that's not an option for most people. I can share 2 scientific studies (not Forbes) showing how there was an inverse relationship between covid mortality and vitamin-d levels.
I understand that something being "linked" to something is not a concrete recommendation to take a supplement, but the risks are very low, and the benefit is very high in my opinion, based on this research.
Obviously, some things work for at least a subset of people. I admit it is hard to distinguish real effects from placebo, but stuff like... creatine, which someone mentioned earlier do work.