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.
Mechanical digestion is done by chewing and griding of food in mouth by the help of teeths and by parastaltic movemetn of stomach.    Chemical digestion is done by brea â¦ k down of complex food into simpler one by the help of some enzymes and digestive juices.he digestion process begins in the mouth. Chewing your food is a mechanical form of digestion. The saliva in your mouth begins to chemically break down your food, which is ch â¦ emical digestion.      Food is chewed,mixed,and churned    both mechanical and chemical digestion happen in your body.