To some extent, the answer to that has been referred to by the other witnesses, although I think primarily what you've heard about to date is the amount of caffeine that is looked at, has been well examined, and is cited in the “It's Your Health” letter as far as safe amounts of caffeine are concerned. You've heard various references from the perspective of milligrams per kilogram, as well as an overall daily consumption of approximately 400 milligrams.
I can tell you, though, that one of the things we look at when we are assessing natural health products of all types is the safety. This was also referred to by other witnesses: that a natural health product, when it is examined as to whether it should be licensed, undergoes a complete safety review, so the precise question you're asking would be looked at in every single application we receive.