It causes premature ageing of the skin by a process called glycation. This is where excess sugar in the blood attaches itself to lipids, nucleic acids and proteins (especially your collagen) to form âadvanced glycation end Â­productsâ or AGEs, which accelerate the ageing process and so cause wrinkly skin.
What is the role of villi in digestive system? the role of the villi is that it increases the surface area so that when food passes through the small intestine the food will get caught on the villi and the nutrients are ab â¦ sorbed into the blood.
When  food passes through the small intestine, vi â¦ lli, absorb all of the  nutrients the body needs from the food. Villi are small fingerlike  projections in the small intestine that increase surface area and  reach out to the food and absorb its nutrients.