There are a lot of foods to avoid, here is a list of the 7 worst offenders. Avoid low-fat foods – often when the fat is removed, sugar is added. Avoid high sugar and high foods. Carbs are just sugar by another name. Sugar is addictive. In fact, it is the most addictive substance on earth. Eat small portions and stick to natural foods. Avoid these foods and your health and weight will thank you.