Why are foods high in added sugars less healthy than foods that are natural sources of sugar?

Added sugars hit your bloodstream faster, spiking your insulin levels. Arad explained that the natural sugars in fruits and vegetables never exist in such a high concentration as added sugars, and they're always accompanied by healthy components like fiber, which slows the absorption of natural sugars into the blood

Explanation:

between the two muscle layers is the myenteric or auerbach's plexus, which controls peristalsis. in the colon, the muscularis externa is much thicker because the feces are large and heavy, requiring more force to push along. the stomach has a third layer of muscularis externa: the inner oblique layer.