It's a sweetener, much more powerful than sugar. And it's calorie-free, entirely natural, and grown in Canada. It's called stevia. It's 300 times sweeter than sugar. And it's illegal, at least when sold in concentrated forms.
Some people say that's bound to change.
Agriculture Canada is growing stevia. But there's many a slip twixt the cup and the lip. Approval to use stevia to sweeten your coffee will require costly research. Barratt's the guy with the commercial angle. He runs Royal Sweet, which has fields of stevia in California, and a patented process for refining the sweet essence from the leaves.