Are you sabotaging your weight loss efforts? You are if you weren't aware of the following: A 100-calorie "health" bar may cause you to gain more weight than a 300- calorie bar. One study found 65% greater chance of becoming overweight and a 41% greater chance of becoming obese for each DIET soda consumed. Is your shampoo making you fat? No calories does not mean no weight gain. Diet food doesn't mean you'll lose weight or that it's good for you! If you really want to lose weight and wear your skinny jeans FOR LIFE, then read Skinny Genes.