This information hopefully helps you better understand and apply rules one and five.
In summary, there are many types of sugars in the diet. I divided them into three groups for simplification. Glucose (half of sucrose) is absorbed rapidly into the blood stream and raises blood sugar. Fructose is first taken to he liver, where it is metabolized into triglycerides, then released into the circulation. To much of either sugar causes problems, just in different ways. Limiting sugar intake makes it easier to lower calorie intake and still feel satiated. Artificial sugar can still affect insulin release, but more so perpetuates sweet/carb cravings.
Stay tuned for the next FRL, and another enlightening topic.