[sonofjanoh]

True. Some types of food will take a lot of work from the digestive system to be broken down before the body can use them as a source of energy. That's why you put highly refined petrol into a car and not raw oil. It's choosing a musli bar over a burger...well almost.

[speek]

Actually... a burger (without the bun, ideally with lots of veggies) will trigger a much less jagged insulin response than a musli bar will.

Fats and proteins tend to raise the blood sugar in a much more sustainable fashion... thus allowing the eater to not feel sleepy after a meal.

[HalcyonMuse]

"A more sustainable fashion" relative to what? Carbohydrates, I'm guessing?