Mid-Calorie Colas
Coke and Pepsi both recently announced that they will be introducing mid-calorie versions of their brand:

ATLANTA (AP) - Coke is launching a mid-calorie cola that promises half the sugar, carbohydrates and calories of its regular version.

The Atlanta-based company said Monday that Coca-Cola C2 will debut first in Japan and then the United States this summer.

The company has been researching the idea for a year.

There will be subtle packaging differences to distinguish between the new drink and the company's flagship brand.

In January, PepsiCo Inc. said it, too, was looking at the idea of selling a mid-calorie cola. At the time, spokesman Dave DeCecco said the Purchase, N.Y.-based company had applied for a patent for Pepsi LS, which some have speculated stands for low sugar. The company later named its mid-calorie cola Pepsi Edge and said it would debut in the United States this summer, roughly the same time as Coke's version, DeCecco said Monday.

I am interested in seeing how well these will do. I made the switch to Diet Coke probably when I was about 27 or 28, which I think for many men is the age where you notice that your metabolism has slowed down. So for me that saved like 2 Cokes a day or 400 calories. But now that I put down about 3 or 4 Diet Cokes a day, I have this strange feeling that aspartame is doing something to me that isn't quite right, so I'd be willing to give this a try.

I'm not sure that the midpoint on calories is where you want to be for this, but maybe it will work. I think ideally they would produce something with the calories of Gatorade--50 or so per 12 oz.--but that didn't have that aspartame kick that Diet Coke has.