Everything is present in nature. It is those that take those chemicals and concentrate them that kill people. Arsenic is in my water Naturally, would you like to take a concentrated version in a bottle? Many in the past did, vets and many medical preparations use arsenic because they think like scientist do, they don't know a thing about the human body or life in general, they think the human body is a bag of cells that can be manipulated with chemicals like chemo.