You can not burn off poor eating habbits in the gym. Eating a Sandard American Diet (SAD) include high refined carbohydrates and empty calories. CrossFit is not simply a work out plan- it is a lifestyle. Food is fuel for the vessel that is your body, so it is best you mind what you choose to eat. CrossFit reccomends two methods of nutrition. A Paleo diet simply consist of the following:
If you find the Paleo method too restrictive, there is the option of following a Zone Diet. A Zone diet does not exclude foods, however, it does require measuring quantities
Please notify your physician before following any dietary plans