Choose Healthy Sources of Fat. A low-carbohydrate diet tends to be high in fat and protein, and low-carb dressings and dipping sauces can be high-fat. Select varieties that are low in saturated fat to support lower cholesterol levels and a reduced risk for heart disease.
Most chemical digestion occurs in the duodenum, which is part of  the small intestine. Chemical digestion also occurs to a lesser  degree in the mouth and stomach. No chemicâ¦al digestion occurs in  the esophagus or large intestine. Dani64.
In chemical digestion, enzymes break down food into the small molecules the body can use. In the human digestive system, food enters the mouth and mechanical digestion of the food starts by the action of mastication (chewing), a form of mechanical digestion, and the wetting contact of saliva.n chemical digestion, enzymes break down food into the small molecules the body can use. In the human digestive system, food enters the mouth and mechanical digestion of the food starts by the action of mastication (chewing), a form of mechanical digestion, and the wetting contact of saliva.