a) Fructose is only metabolized by Liver, and not brain nor muscle. The liver converts it to energy form like bad cholesterol. In small quantities that exist in fruits with the fiber limits the speed of absorption so it doesn't overwhelm the livers primary mechanism for dealing with it.
But moderation of sugar is impossible without actually spending time to find how much sugar there is in different products, and cutting those that come with mercilessly until you consume 15 grams of it a day. Its about 1/3rd of smallest coca cola bottle here or single serving of yogurt. I remember some study that majority of food items in market have added sugar in USA so moderating it is extremely hard without spending time to think about it.
Also sugar messes up the system that tells the brain that you are no longer hungry, which means if you eat stuff that has sugar in it, it takes longer for you to feel full.
Also while there is health reason to exercise burning more calories isn't it. Single snack is often more than hour of exercise.
You should watch "sugar bitter truth" lecture by dr. Lustig on Youtube.
www.youtube.com/watch?v=dBnniua6-oM
Glucose fuels the brain. Fructose doesn't. And while more research needs to be done there's a lot of evidence that some people respond poorly to fructose.
Correct. Furthermore, if the subject is in ketosis, there is an adaptation which your brain becomes 'glucose free'. That's the whole point of keto diets.
Also sugar messes up the system that tells the brain that you are no longer hungry, which means if you eat stuff that has sugar in it, it takes longer for you to feel full.
Also while there is health reason to exercise burning more calories isn't it. Single snack is often more than hour of exercise.
You should watch "sugar bitter truth" lecture by dr. Lustig on Youtube. www.youtube.com/watch?v=dBnniua6-oM