Fit-a-Rita is a sugar-free, instant margarita mix with added minerals, vitamins and herbal extracts designed to buffer the toxic effects of alcohol. The average margarita has over 200 calories, while a Fit-a-Rita margarita has just six calories (without tequila of course - it markets better that way). No sugar. No carbs. And it contains as much anti-oxidants as two glasses of red wine. Read more