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.
Digestion in the Stomach. by Howard F. Loomis Jr., D.C. Digestion begins in the mouth. When you chew your food it is mixed with saliva, which not only supplies moisture but also the carbohydrate-digesting enzyme, amylase. When you eat raw food, its enzymes work with the salivary amylase to begin digestion.