"Take the Metabolism B challenge...Do you notice weight gain around your middle that won't budge? Do friends and coworkers eat more than you, but weigh less? Are you drained of energy despite a proper amount of sleep? Do you 'love' carbohydrates like bread, pasta, sweets, and chips? If you answered 'yes' to any of the above, you may be one of the millions who have Metabolism B, an inherited hormonal imbalance that causes your body to overprocess carbohydrate foods into excess body fat..."--P. [4] of cover.