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.
First, food enters the mouth and is broken down through both mechanical and chemical digestive pathways. Mechanically, it is cut down by the grinding and crushing action of the teeth in the mouth, while chemically food is broken down by the enzyme salivary amylase, secreted in saliva.