WebMD Answers
The O2 diet is a 32-day plan that starts with a 1,200-calorie, four-day "cleanse" that provides 50,000 oxygen radical absorbance capacity points (ORAC) per day. (That may sound astronomical, but keep in mind that one cup of blueberries has 9,700 ORAC points.)
A two-week Phase Two follows, with at least 30,000 daily ORAC points and 1,400-1,500 calories. Dieters can remain in this phase longer if they want to lose more weight. The final two-week phase is essentially the same as Phase Two with an extra starch or fruit each day and a weekly indulgence such as a glass of wine or small piece of chocolate.
The diet's creator estimates you can lose two to five pounds in the first four days of the antioxidant-rich diet (about half from water weight), and one to two pounds weekly during the remainder of the diet. Ultimately, you're encouraged to follow the O2 diet for life to help you maintain the weight loss you achieved on the 32-day diet.
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