The NIAAA Drinking Guidelines for Adults Over 65: What One Drink a Day Really Means

The National Institute on Alcohol Abuse and Alcoholism (NIAAA), part of the National Institutes of Health, sets the federal guideline for older adults at no more than one standard drink per day for men over 65 and one standard drink per day for women of any age. That is lower than the under-65 guideline (two for men, one for women) because of the body changes that come with age — lower water content, slower liver, more medications in the mix.

A standard drink is a precise measurement, not a casual one. It contains 0.6 fluid ounces (about 14 grams) of pure alcohol. That works out to 12 ounces of regular beer at 5 percent alcohol, 5 ounces of wine at 12 percent, 8 ounces of malt liquor at 7 percent, or 1.5 ounces of 80-proof spirits like whiskey, vodka, or gin. Craft beer at 7 to 9 percent alcohol counts as more than one standard drink in a 12-ounce can. A double martini is two to three standard drinks in one glass.

The strict reading of the guideline is one drink, every day at most, no exceptions. The moderate reading is an average of one drink per day across the week — so up to seven drinks per week, ideally spread out, not stacked. Most public health doctors accept either reading as a reasonable target. But they push back on the saving up version (zero drinks Monday through Thursday, seven Friday night) because binge drinking is the pattern most strongly linked to falls, accidents, and emergency room visits among older adults.

The guideline also says at least two alcohol-free days per week, even for moderate drinkers. The liver, the brain, and the cardiovascular system all benefit from rest days. A 2024 study from the National Institute on Aging found that older adults who took two consistent dry days per week had measurably better sleep quality, lower blood pressure, and fewer falls than those who drank daily — even when total weekly intake was identical.

The guidelines also identify groups who should not drink at all: anyone with a history of alcohol use disorder, anyone taking medication that interacts with alcohol, anyone with liver disease, anyone who has fallen in the past year, and anyone driving in the next several hours. That last group is significant. Even one drink can impair driving for an older adult, and one drink at 5 p.m. may still register on a breath test at 9 p.m.

The guidelines are not a prescription. They are a population-level recommendation. Your doctor may suggest something different based on your specific health, and the SAMHSA helpline at 1-800-662-HELP (4357) can connect you with free resources if you want to step back further.

(Sources: NIAAA Rethinking Drinking guidelines, rethinkingdrinking.niaaa.nih.gov; National Institute on Aging Alcohol Use in Older Adults Fact Sheet; SAMHSA National Helpline, accessed May 2026)