Beer, wine, a shot. And the weight still goes down. If you think one glass of wine will sink your diet, the research says it is less dramatic than that.
Short answer: Yes, you can lose weight when you drink alcohol. A calorie deficit decides, and large reviews of studies find no link between light to moderate drinking and weight gain. A few drinks a week, counted into your day, will not stop fat loss. Regular drinking does work against you: it adds calories, raises appetite, disturbs sleep and slows muscle building.
Less dramatic than it sounds
- Fat loss comes down to your calorie deficit. Large reviews of studies agree that light to moderate drinking is not linked to weight gain. One glass with dinner a few times a week is one thing. Six beers on Friday is another.
- The catch is what comes with the drink. Alcohol raises your appetite and lowers your guard. You eat more, and you do not eat less later to make up for it. The late-night kebab or pizza does more damage than the drink itself.
- Then there is something that has nothing to do with weight: your health. Whatever the scale says, the WHO said in 2023 that no amount of alcohol is safe for your health. Alcohol is a Group 1 carcinogen, the highest category, and it is addictive. A calorie deficit cannot cancel that out.
So no scaremongering, and no "my macros fit, so it makes no difference" either. A few drinks a week, counted into your day, will not wreck your fat loss or your shape.
How regular drinking works against you
- More food. A meta-analysis of 22 studies found that people eat more after alcohol and do not make up for it later. The extra food averaged +343 kJ, about +82 kcal (calories).
- Worse sleep. Alcohol suppresses REM sleep and breaks your sleep into pieces, mostly in the second half of the night. Why that matters for fat loss is in sleep and fat loss.
- Slower muscle building. In one study, muscle protein building after training was 24% lower with alcohol, even with protein in the meal. The dose was about 12 drinks, though. That is getting properly drunk, not a glass of wine with dinner.
A beer fits into a fat loss plan. You do not need the drama. Next time you order, decide with the numbers in your head.
Frequently asked questions
Why is it harder to lose weight when I drink, if the drink itself is not that bad?
The catch is what comes with the drink. Alcohol raises your appetite and lowers your guard, so you eat more, and you do not eat less later to make up for it. The late-night kebab or pizza does more damage than the drink itself.
How much more do I eat when I drink alcohol?
A meta-analysis of 22 studies found that people eat more after alcohol and do not make up for it. The extra food averaged +343 kJ, which is about +82 kcal.
Is any amount of alcohol safe for my health?
No. In 2023 the WHO said that no amount of alcohol is safe for health. Alcohol is a Group 1 carcinogen, the highest category, and it is addictive. A calorie deficit does not cancel that out.
Does alcohol slow muscle growth?
Regular drinking does. One study measured 24% less muscle protein building even with protein in the meal. The dose was about 12 drinks, though, so that was a proper drunk and not one glass.
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Apply for coaching Get the free Fat Loss KitSources, so you can check:
1) Light drinking is not linked to weight gain (review): Traversy G, Chaput JP. Alcohol Consumption and Obesity: An Update. Curr Obes Rep. 2015;4(1):122-130. DOI: 10.1007/s13679-014-0129-4 | PMID: 25741455
2) You eat more after alcohol and do not make up for it (meta-analysis of 22 studies): Kwok A, et al. Effect of alcohol consumption on food energy intake. Br J Nutr. 2019;121(5):481-495. DOI: 10.1017/S0007114518003677 | PMID: 30630543 (Extra food averaged +343 kJ, about +82 kcal, with no compensation.)
3) Slower muscle building, even with protein: Parr EB, et al. Alcohol Ingestion Impairs Maximal Post-Exercise Rates of Myofibrillar Protein Synthesis. PLoS One. 2014;9(2):e88384. DOI: 10.1371/journal.pone.0088384 (-24% even with protein. Note: the dose was about 12 drinks, so heavy drinking, not one glass.)
4) Sleep and REM disruption (review + meta-analysis): Nutrients. 2026;18(4):585. DOI: 10.3390/nu18040585 | Gardiner C, et al. Sleep Med Rev. 2025;80:102030. DOI: 10.1016/j.smrv.2024.102030 (REM suppression and fragmentation, mostly in the second half of the night.)
5) No amount is safe for health (WHO): Anderson BO, et al. Lancet Public Health. 2023;8(1):e6-e7. DOI: 10.1016/S2468-2667(22)00317-6
6) Group 1 carcinogen, 7 types of cancer: Rumgay H, et al. Lancet Oncol. 2021;22(8):1071-1080. DOI: 10.1016/S1470-2045(21)00279-5 | PMID: 34270924
Martin Barna
Online nutrition and fitness coach. Since 2013 I have helped 600+ people lose fat and keep the result. Science, not crash diets.
Apply for coachingThis article is for information only. It is not medical advice. If you have a health condition, talk to your doctor.