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.
Mouth. Chemical digestion first begins in the mouth where the food arrives and encounters saliva. In the oral cavity, salivary glands secrete the saliva with a multitude of enzymes and substances in order to assist in the digestion and disinfection of the food.