Tell me why?
A great sugary snack feels heavenly but can you eat just one cookie, or do you keep eating “just one more” till the whole bar has gone? Your body converts the carbohydrate in your diet into the fuel (glucose). Your muscles and brain require glucose for energy. Your brain depends exclusively on a steady supply of glucose from the blood. That’s how blood sugar level affects your mood and behaviour!
Short term: two hours later the blood sugar level can fall too low, because there is no further glucose entering the blood. So the body tries by various means to bring the blood sugar level back up again. It creates a craving for more carbohydrate. So you eat perhaps another sugary snack. Up goes your calorie intake, up goes your weight, and you have set yourself up for more cravings in a few more hours time.
Long term: People then become reliant on this carbohydrate cravings to feel better. This tendency to use certain foods as though they were drugs is a frequent cause of weight gain.
Sugars in your Food Simple carbohydrates (sugars) are made up of one or two sugar molecules and include naturally as well as the more processed sugars like table sugar. They are easily converted to blood glucose in the liver and can enter the bloodstream very soon after being eaten. This rapidly rises your blood sugar level.
Complex carbohydrates (whole grains) are long chains of sugar molecules. They are digested more slowly than simple sugars resulting glucose from their digestion is released at a slower rate into the blood stream resulting in a steadier level of blood glucose.