Catholic teaching does not prohibit alcohol in itself. Wine has an important place in Christian Scripture and Catholic sacramental life. The moral issue is how alcohol is used: temperance is encouraged, while drunkenness, addiction, reckless behavior, and harm to oneself or others are rejected.

Alcohol is not forbidden
Catholics are not required to avoid beer, wine, or spirits simply because they contain alcohol. The Eucharist traditionally uses wine, so a blanket religious prohibition would not fit ordinary Catholic practice.
Local law still matters. Catholics are expected to respect legitimate laws governing drinking age, driving, public safety, and the sale of alcohol.
What the Catechism teaches
The Catechism discusses alcohol under the virtue of temperance. It warns against excess in food, alcohol, tobacco, and medicine and treats behavior that endangers others through drunkenness or reckless driving as seriously wrong.
Moderation is not a fixed number of drinks for every person. Health, medication, pregnancy, addiction history, body size, and personal vulnerability can make abstinence the responsible choice.
Choosing not to drink
A Catholic may freely abstain for spiritual discipline, health, solidarity with someone in recovery, family reasons, or personal preference. No one should be pressured to drink in order to appear sociable or religiously normal.
For someone with alcohol-use disorder, “moderation” may not be a safe goal. Complete abstinence and professional support can be necessary.
Alcohol and Catholic celebrations
Alcohol may appear at weddings, feast-day gatherings, family meals, and cultural festivals, but Catholic celebration does not require intoxication. Hospitality should include nonalcoholic choices and respect for guests who do not drink.
The Catholic principle
The issue is not whether alcohol is inherently sinful. Catholic ethics asks whether its use is temperate, lawful, responsible, and respectful of human dignity and the safety of others.