Pneumonia Vaccine Side Effects. When it comes to pneumonia vaccine side effects, there is a debate whether this vaccine can cause serious side effects or not. Companies that are producing the vaccine claim that its negative side effects are within the tolerable limits and cannot cause any serious problems. Pneumonia Vaccine and side effects.
The stomach produces and secretes several important substances to control the digestion of food. Each of these substances is produced by exocrine or endocrine cells found in the mucosa. 1  The main exocrine product of the stomach is gastric juice â a mixture of mucus, hydrochloric acid, and digestive enzymes.
The enzymes that are secreted in the stomach are called gastric enzymes. The stomach plays a major role in digestion, both in a mechanical sense by mixing and crushing the food, and also in an enzymatic sense, by digesting it. Pepsin breaks down the protein in the food into smaller particles, such as peptide fragments and amino acids. 2  Protein digestion, therefore, first starts in the stomach, unlike carbohydrate and lipids, which start their digestion in the mouth.