Did you know that most big-name brands of toothpaste (I don't know about all, or smaller names, or all-natural brands like Tom's of Maine) actually have a warning on the back telling you if you swallow more than what's used for normal toothbrushing to call a poison control center? I'm not trying to frighten anyone...it's safe to brush your teeth...but I used to read the backs of products while in the bathroom when I was younger, and I learned to read them just to know what I was using.