What is the mechanism by which chronic alcohol use increases the risk of pancreatitis and diabetes risk?

• A. It reduces pancreatic inflammation and improves insulin production.
• B. It reduces pancreatic inflammation and increases insulin production.
• C. It has no effect on the pancreas but affects the liver.
• D. It causes pancreatic inflammation and scarring and can impair insulin production, increasing diabetes risk.

Answer: (D)

Chronic alcohol use damages the pancreas by causing inflammation (pancreatitis) and, over time, scarring (fibrosis). This injury can destroy or impair insulin-producing beta cells, reducing insulin output and increasing the risk of diabetes. The combination of persistent inflammation and loss of pancreatic tissue explains why alcohol exposure raises both pancreatitis risk and diabetes risk. The other descriptions don’t fit the biology: they imply less inflammation or improved insulin production, or ignore pancreatic effects altogether, which contradict the known pattern of alcohol-related pancreatic injury.