| Food Component | Enzyme | Secretion | Site of Action |
|---|---|---|---|
| Proteins | Pepsin | Gastric juice, acid | Stomach |
| Trypsin | Pancreatic juice, alkaline | Small intestine | |
| Peptidases | Intestinal juice | Small intestine | |
| Fats | Lipase | Gastric juice | Stomach |
| Pancreatic juice | Small intestine | ||
| Carbohydrates | Salivary amylase | Saliva, alkaline | Mouth |
| Pancreatic amylase | Pancreatic juice | Small intestine | |
| Sucrase, maltase, lactase | Intestinal juice | Small intestine |