Sugars in fruits, vegetables and grains and crystallized sugar are in totally different forms. Along with sugar, in a fruit you have fiber, basically cellulose

Sugars in fruits, vegetables and grains and crystallized sugar are in totally different forms. Along with sugar, in a fruit you have fiber, basically cellulose and lignine, chitines in fungus like a champignon. In fruits and vegetables you include thousands of different substances, like vitamins,anti oxidants and anti cancer, co enzymes, and enzymes, aminoacyds and dietary elements absent in crystallized sugar. Those are specially abundant in integral grains, specially if they are germinated, and vegetables , like Broccoli. Lots of those could get destroyed by storage time, cooking or freezing. So we could believe that we eat well, but actually lack lots of needed substances. That is the reason too much pre-process(pizza, hamburgers, hotdogs) food is not good for you long term. Fiber is inert, and we humans could not process it, only some symbiotic cells in our intestines, but they have a very important function: they physically block the maximum sugar concentration release in the digestion. Concentration is important because sugar is in fact toxic, too much of it will simply kill you. That is what a diabetic is, someone who does not natively release insulin to block the excessive sugar and could die as a result. Your body needs to control glucose in your blood, too much glucose and you die, too much insulin and you die too because you need glucose. When you eat artificial sugar dissolved in water, like in a soda, you disrupt the control mechanism of the body because it is so fast spike compared to normal fiber mixed sugar in a fruit that you disrupt the control process. You are also not eating glucose, but fructose and tissues like those in the liver have to overwork. Some of those could only do one thing at a time, so they need to stop doing important things because you put the body in panic or emergency situation. You create short euphoric behavior, but also over corrections, too much insulin, then the body enters panic depression, and so on.