Does blood sugar increase or decrease after drinking alcohol?
Blood sugar levels may either rise or fall after drinking alcohol, depending on individual circumstances.
1. Increase
If only a small amount of alcohol is consumed, the body's sympathetic nervous system usually becomes excited, which can lead to elevated blood glucose levels. Consuming high-fat, high-oil foods such as meat during drinking can also cause a significant increase in blood sugar. In such cases, blood glucose can be controlled under medical guidance through insulin injections.
2. Decrease
If large amounts of alcohol are consumed, increased ethanol levels in the body can enhance insulin sensitivity, thereby strengthening insulin's blood sugar-lowering effect, leading to hypoglycemia. This can be effectively relieved by consuming sweet snacks or drinking glucose water in moderation. If symptoms are severe, prompt hospitalization is necessary for intravenous injection of 50% glucose solution to improve the condition.
In addition, frequent alcohol consumption commonly leads to alcohol poisoning or liver damage, and severe cases may present symptoms such as nausea, vomiting, and liver pain. Therefore, alcohol consumption should be avoided in daily life.