How Alcohol Affects Blood Glucose
Normally, when you skip a meal, the liver will break down stored carbohydrate and send glucose out through the bloodstream to energy-hungry tissues until you eat again. Alcohol can disrupt this process:
"Your body reacts to alcohol like a poison. The liver wants to clear it from the blood quickly. In fact, the liver won't put out glucose again until it has taken care of the alcohol. If your blood glucose level is falling, you can quickly wind up with very low blood sugar."
- From the ADA's fact sheet on Alcohol
So if you're offered a drink, heed the ADA's advice:
- Never drink alcohol on an empty stomach.
- Limit yourself to 1 drink if you're a woman or 2 drinks if you are a man.