[Coda]

The problem is that there's a complete lack of evidence. The person hasn't tried it because there's no indication that it COULD work. There's no proof that it's done anything for anyone, ever.

There are some home remedies that actually do something. Aloe vera actually does do something, for example. (Maybe not everything its proponents claim it does, but it does do something.) There are others that are nothing more than placebo. The biggest risk with home remedies is that the lack of evidence also means that you don't know what could go WRONG, either. I mean, considering that diatomaceous earth KILLS insects by tearing into their bodies, do you REALLY want to shove that into your digestive tract? There's no proof that it's even SAFE.

The fact that "food grade diatomaceous earth" even EXISTS is a sign that someone out there is wanting to swindle people out of their money. Someone is charging MORE money for it because people believe that it works. There's an entire industry that thrives on exploiting people's belief that "natural" is somehow better for you than things that have been thoroughly studied and improved upon.

Another big risk of quack home remedies is that they make you believe that you're doing something for your health, so you stop trying to do stuff that ACTUALLY helps.