The reason you end up gaining more weight even when you try to lose weight could be due to the food you take. When exercising, the body will demand an increase in food intake, which can cause you to eat more than you did before. You need to regulate your meals and check on the calorie count on the food you take. For instance, you should take fewer calories compared to those that you loose on your workout. You may need to consult a specialist, who will advise you on the best meals to take depending on your BMI.