To clarify, I'll explain again; beside each product, there is a number. It could be 32, 104, 523, 209, etc. He explains that it's parts per billion, but not the significance. I'm assuming that each one is for one serving, but he doesn't say when it becomes dangerous. For example, if you have 1 serving a day of something that is a 200, is that dangerous? Or if you have 3 servings a day of something that is 50, is that dangerous? The numbers just don't mean much to me, especially when most of them seem to be under 200, then there are a few that are in the 400s/500s. If the answer is to use moderation, how do we know what a good level of moderation is? Should we just not eat the ones that are above 300?