on calcium supplementation in pregnant women confirms this and also points out a possible protective effect of calcium on the prevention of preterm birth among those women who consumed between 1.5 g and 2.0 g of calcium per day (8). Daily iron and
Both mechanical and chemical. Chewing, also called mastication, is using your teeth with the help of your tongue to break down food into smaller particles, and the other a chemical process where salivary amylase which is a digestive enzyme that helps break down carbohydrates. 1 person found this useful.
Absorption in the Mouth. Digestion begins in the mouth when food is mixed with saliva, containing digestive enzymes. Although there is a lot of chemical and mechanical activity during chewing, there is very limited nutrient absorption in the mouth. Some glucose absorption takes place in the mouth in the time the food is held for chewing -- less than a minute.