Did you know that the phrase "everything in moderation" may not always be true? Find out which factors prevent weight loss. Dr. Caroline Cederquist, author of The MD Factor Diet, shares the various factors that can stall even healthy eaters from losing weight. Cederquist discusses how alcohol and weight loss are linked, particularly wine. She also talks about how hormones, carbs and high-fat foods all play a part in your failing attempts to lose weight.