Try to avoid refined foods. Shop the fresh parameters of the grocery store. The freshest foods are all around the outside of the store. There are very few things that you need to eat in the inner isles.
1. Change your attitude -
2. Learn to deal with stress
3. Don't smoke - Diabetes & Smoking - Recipe for Disaster
4. Achieve ideal body weight
5. Exercise regularly
This tricks your brain into thinking you are eating more food.