Actually, borderline diabetes is a somewhat misleading term. The term pre-diabetes, which is more widely used today, better describes what is happening. Pre-diabetes means that your blood glucose is higher than normal but not yet high enough to be considered diabetes.
Fat digestion also begins in the mouth with the secretion of the enzyme lingual lipase by glands under your tongue. Although this enzyme doesn't do much with the food while it's in your mouth, it does move on down with the food to your stomach, where it can start to break down about 10-30% of the food's fat content.
It secretes juices containing enzymes that are capable of digesting all major types of food -- carbohydrates, fats and proteins. The pancreas is the first organ to begin digesting fats. It secretes pancreatic lipase, esterase and phospholipase, which break down chemically complex fats into simple, easy-to-absorb fats. Similarly, trypsin and carboxypolypeptidase break down proteins, and pancreatic amylase breaks down carbohydrates. Pancreatic juice also contains large amounts of bicarbonate, which neutralizes the acid from the stomach.