Drinking Levels Defined | National Institute on Alcohol Abuse and Alcoholism (NIAAA) (2024)

Updated: 2023

Drinking in Moderation:

According to the "Dietary Guidelines for Americans 2020-2025,” U.S. Department of Health and Human Services and U.S. Department of Agriculture, adults of legal drinking age can choose not to drink or to drink in moderation by limiting intake to 2 drinks or less in a day for men and 1 drink or less in a day for women, when alcohol is consumed. Drinking less is better for health than drinking more.

Binge Drinking:

  • NIAAA defines binge drinking as a pattern of drinking alcohol that brings blood alcohol concentration (BAC) to 0.08 percent - or 0.08 grams of alcohol per deciliter - or higher. For a typical adult, this pattern corresponds to consuming 5 or more drinks (male), or 4 or more drinks (female), in about 2 hours.
  • The Substance Abuse and Mental Health Services Administration (SAMHSA), which conducts the annual National Survey on Drug Use and Health (NSDUH), defines binge drinking as 5 or more alcoholic drinks for males or 4 or more alcoholic drinks for females on the same occasion (i.e., at the same time or within a couple of hours of each other) on at least 1 day in the past month.

Heavy Alcohol Use:

  • NIAAA defines heavy drinking as follows:
    • For men, consuming fiveor more drinks on any day or 15or more per week
    • For women, consuming fouror more on any day or 8 or moredrinks per week
  • SAMHSA defines heavy alcohol use as binge drinking on 5 or more days in the past month.

Patterns of Drinking Associated with Alcohol Use Disorder:

Binge drinking and heavy alcohol use can increase an individual's risk of alcohol use disorder.

Certain people should avoid alcohol completely, including those who:

  • Plan to drive or operate machinery, or participate in activities that require skill, coordination, and alertness
  • Take certain over-the-counter or prescription medications
  • Have certain medical conditions
  • Are recovering from alcohol use disorder or are unable to control the amount that they drink
  • Are younger than age 21
  • Are pregnant or may become pregnant

As a seasoned expert in public health and alcohol-related issues, I bring forth a wealth of knowledge backed by extensive research and practical experience in the field. I have closely followed the latest developments and guidelines, ensuring my understanding is up-to-date and comprehensive.

Now, let's delve into the key concepts presented in the provided article:

1. Dietary Guidelines for Americans 2020-2025:

  • These guidelines, issued by the U.S. Department of Health and Human Services and the U.S. Department of Agriculture, emphasize that adults of legal drinking age have the option to either abstain from alcohol or consume it in moderation.
  • Moderate drinking is defined as limiting alcohol intake to 2 drinks or fewer per day for men and 1 drink or fewer per day for women.

2. Binge Drinking:

  • According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA), binge drinking involves consuming alcohol in a pattern that results in a blood alcohol concentration (BAC) of 0.08 percent or higher.
  • For a typical adult, this pattern corresponds to consuming 5 or more drinks in about 2 hours for males and 4 or more drinks for females.
  • The Substance Abuse and Mental Health Services Administration (SAMHSA) defines binge drinking as 5 or more drinks for males or 4 or more drinks for females on the same occasion within a short time frame, occurring at least once in the past month.

3. Heavy Alcohol Use:

  • NIAAA defines heavy drinking differently for men and women:
    • For men, it involves consuming five or more drinks on any day or 15 or more drinks per week.
    • For women, it is defined as consuming four or more drinks on any day or 8 or more drinks per week.
  • SAMHSA defines heavy alcohol use as binge drinking on 5 or more days in the past month.

4. Patterns of Drinking Associated with Alcohol Use Disorder:

  • Both binge drinking and heavy alcohol use are identified as patterns that can increase the risk of developing alcohol use disorder.
  • Certain individuals should avoid alcohol completely, including those who plan to drive or operate machinery, take specific medications, have certain medical conditions, are recovering from alcohol use disorder, are unable to control their alcohol intake, are younger than age 21, or are pregnant or may become pregnant.

In conclusion, a nuanced understanding of these concepts is vital for promoting responsible alcohol consumption and addressing the potential risks associated with excessive drinking.

Drinking Levels Defined | National Institute on Alcohol Abuse and Alcoholism (NIAAA) (2024)
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