Does alcohol make you gain weight?

Short answer

It can, especially with heavier drinking. Alcohol has about 7 calories per gram, so the alcohol in one standard drink is roughly 100 calories before any mixer. Research reviews find heavy drinking is more consistently linked to weight gain than light drinking. If you drink heavily every day, talk to a doctor before stopping.

First two rounds free · teams of 2–4 · a new round every Tuesday

By Coach Josh · Get Your BMR

5 sources · Reviewed October 28, 2026

The short version

  • About 100 calories of alcohol in a standard drink, before mixers
  • Heavy drinking is the pattern most linked to weight gain
  • Drinking heavily every day? See a doctor before you stop
Illustration: a woman walking through her neighborhood after dinner at sunset.

How many calories are in a drink?

Alcohol has about 7 calories per gram. A U.S. standard drink has about 14 grams of alcohol, according to the National Institute on Alcohol Abuse and Alcoholism (NIAAA). That works out to roughly 100 calories from the alcohol alone.

Mixers, sugar and bigger pours add more. A restaurant glass of wine or a large craft beer can easily hold more than one standard drink.

What studies of women found

The research is more mixed than you might expect. A 2015 review found that light-to-moderate drinking is generally not linked to fat gain in long-term studies, while heavy drinking is more consistently linked to weight gain.

One large U.S. study followed 19,220 U.S. women aged 39 and older for nearly 13 years. Women who drank lightly or moderately gained a little less weight than non-drinkers. That was an observational study of women who started at a normal weight, so it does not mean drinking helps. Nobody should start drinking, or drink more, for their weight.

Cutting back safely

If you drink a little and want to drink less, small changes to the routine around drinking are a fine place to start.

If you have been drinking heavily for a long time, NIAAA warns that stopping suddenly can bring on withdrawal, with nausea, a racing heart or seizures, and it can be life-threatening. A doctor can help you plan a safe way to stop, and there are medicines that make it safer. The SAMHSA National Helpline (1-800-662-4357) is free, confidential and open 24/7.

Where a team walk fits

Walking does not cancel out drinks, and it is not meant to. What an after-dinner walk can do is give your evening a new routine. In the 3-Day Walk & Water Challenge, a team of two to four sees your walk and your water each day.

Walk it with a team this week

Join a team of 2–4, walk & drink your water Tuesday to Thursday, and see the winners Friday.

First two rounds free · teams of 2–4 · a new round every Tuesday

The 3-Day Walk & Water Challenge

How a round works

  1. 1. Join a team

    Two to four of you on one team: a friend’s, your own, or one you join in the app. Your team gets a name, a crest & a spot on the live leaderboard.

  2. 2. Walk + water, 3 days

    Tuesday, Wednesday & Thursday. A step goal & a water goal sized to where you are today. The board updates as you walk & closes Thursday at midnight, Arizona time.

  3. 3. Friday winners

    Friday morning the results go up. The winning team’s card glows gold, badges land beside names on the board, and a new round starts Tuesday.

Bigger isn’t better. Teams rank on their AVERAGE.

A team’s score is its average per woman, not its total. So two friends can beat a team of four, and every walker’s day counts the same. When one of you goes quiet, the others notice & send a nudge in team chat.

The Walk & Water team card: team name and crest, team level, the average steps per woman, and each teammate’s steps and glasses of water.
Your team card. The big number is the average per woman.
The Walk & Water leaderboard: your rank this week, steps, glasses of water, day streak, and the 3-day challenge rankings.
The live leaderboard. Solo, team & global ranks for this round.

Three small swaps for the evening

These are about the routine around a drink, not about eating less to “make room” for one.

  1. Count in standard drinks

    A 5-ounce glass of wine at 12%, a 12-ounce beer at 5% or a 1.5-ounce shot at 40%. A larger serving can contain more than one standard drink.

  2. Eat your dinner

    Have a normal meal. Do not skip food to make room for drinks.

  3. Give the evening a new cue

    An after-dinner walk, a call with a friend, a sparkling water in your favorite glass. Something that marks the end of the day.

Questions

Does alcohol make you gain weight?

It can, especially heavy drinking. Alcohol has about 7 calories per gram, and reviews find heavy drinking is more consistently linked to weight gain than light drinking. Results vary from woman to woman.

How many calories are in a glass of wine?

A 5-ounce glass of wine at 12% is one standard drink, about 14 grams of alcohol, or roughly 100 calories from the alcohol alone. Larger pours and sweeter wines have more.

Will I lose weight if I stop drinking?

The cited studies do not establish whether stopping drinking will cause weight loss for you. If you drink heavily every day, talk to a doctor before stopping, because withdrawal can be dangerous.

Can I drink wine and still lose weight?

These studies do not establish that drinking supports weight loss. Do not start drinking or drink more for weight control. Count drinks in standard drinks and eat your normal meals rather than skipping food to make room. If cutting back is hard, the SAMHSA helpline (1-800-662-4357) can point you to support.

Sources

Written by Coach Josh and checked against these sources on October 28, 2026. General information, not medical advice.

Show all 5 sources
  1. NIAAA — What Is a Standard Drink?
  2. Traversy & Chaput (2015). Alcohol Consumption and Obesity: An Update. Current Obesity Reports
  3. Wang et al. (2010). Alcohol consumption, weight gain, and risk of becoming overweight in middle-aged and older women. Archives of Internal Medicine
  4. NIAAA Rethinking Drinking — Cut down or quit
  5. SAMHSA National Helpline (1-800-662-4357)
Coach Josh

Who writes these guides

Coach Josh

Professional trainer since 2018 · ISSA & NCCPT certified · Creator of Get Your BMR & the Walk & Water Challenge (BodyByReason)

I’m Josh. I built Get Your BMR so you could see what your body burns at rest, & I built Walk & Water so you’d have somewhere to use it with people who notice when you show up.

I walk every round too: same board, same three days, on my own team. I don’t always win. Tap Chat with Coach in the app & it’s me who answers.

About 7 in 10 women who finish a round come back & play the next one.

Walk & Water app data, 73 finishers, snapshot October 19, 2026.

Start this week’s round

First two rounds free · teams of 2–4 · a new round every Tuesday

The challenge offers a walking routine; it does not diagnose or treat the concerns discussed here.

Get Your BMR is Coach Josh’s free calculator. The 3-Day Walk & Water Challenge is where you put the number to work, and it runs inside the APEX: Walk & Water app on iPhone and Android.