The gallbladder itself does not produce enzymes. Instead, its main function is to store and concentrate bile, which is produced by the liver. Bile contains bile salts, bilirubin, cholesterol, and phospholipids, which all play crucial roles in digestion, particularly in the emulsification of fats.
When you eat, the gallbladder releases bile into the small intestine through the bile duct. This release is stimulated by the hormone cholecystokinin, which is secreted when fatty foods are ingested. The bile facilitates the action of digestive enzymes produced by the pancreas and other digestive organs that break down fats, proteins, and carbohydrates. Therefore, while the gallbladder does not produce enzymes, it plays an important role in the digestive process by aiding the action of those produced by the liver and pancreas.