Can I drink Sugar Free Red Bull if I am on the 1st phase of the South Beach Diet?

Can I drink Sugar Free Red Bull if I am on the 1st phase of the South Beach Diet?
Red Bull is a thermogenic food. Even the non "sugar free" burns more calories than are in it. There are 110 calories contained by red bull but it takes more calories than that to process it through your body.
I'm sure you'll be o.k. next to the sugar free. Personally, I think the "south sand diet" or any other name brand diet is a scam for your money. It's really not that firm to just drink healthy food surrounded by moderation, is it?
u gonna get fat again anyway. drink what u wants
as expected u can.. whose keeping you from not drinking it? hehehe