Then the third thing is about interactions. Because while you're not allowed to say, in terms of therapeutic claims, "This can do X, Y, and Z.", a lot of these supplements actually do have activity where you can interact with medication. This is often important where you've got people that are medically fragile, they're taking a lot of different medications, and then they go and take a supplement, and it can interact and throw everything out of whack. And so, again, it's really important when you're trying to figure out what's going on here, to take a good look at the history, in terms of whether you are taking any supplements; if so, let's have a look at the packet, and then you can go through and figure out what's actually going on.