The human body is not ready to process that much sugar that an average person consume today. Sugar in products takes vitam B and other micro-nutrients from the body which are required for the break-down, thus causing deficiency diseases. It strongly acidifies the pH of the body, so for the compensation, the body takes calcium and mineral salts from the bones.
If you take a better look you will see, almost everything contains sugar. I checked my whole wheat flour and it contains sugar too!
Before I write about why sugar is bad for your skin, lets look at the types of sugar.
1. Granulated (white) sugar
It is made from cane sugar or beet sugar. The sliced herb is soaked, pressed and purified with phosphoric acid and calcium hydroxide (slaked lime), which combine to precipitate calcium phosphate. All the organic impurities are removed with this process. Then then clarified syrup is decolorized by filtration. The purified syrup is then concentrated to supersaturation and repeatedly crystallized under vacuum, to produce white refined sugar. An interesting fact: the sugar contant of beet sugar is 18%, the sugar contant of refined white sugar is 95%.