Cet article traite du sujet : Alcool et prise de poids : comment la consommation affecte votre composition corporelle. Vous trouverez ci-dessous des informations clés basées sur des recherches scientifiques récentes.
Alcohol and Calories: The Basics
Alcohol contains 7 kcal per gram — more than protein (4 kcal/g) and carbohydrates (4 kcal/g), and approaching fat (9 kcal/g). Unlike other macronutrients, alcohol provides no nutritional value beyond energy — no vitamins, minerals, protein or essential fats.
Calories in common drinks:
Beer (330ml, 5%): ~150 kcal
Wine (150ml glass, 13%): ~125 kcal
Spirits (25ml shot, 40%): ~56 kcal
Cocktail (e.g. Mojito): ~180–250 kcal
A "night out" with 4–6 drinks: 600–1,500 kcal extra
Beer (330ml, 5%): ~150 kcal
Wine (150ml glass, 13%): ~125 kcal
Spirits (25ml shot, 40%): ~56 kcal
Cocktail (e.g. Mojito): ~180–250 kcal
A "night out" with 4–6 drinks: 600–1,500 kcal extra
How Alcohol Sabotages Fat Loss
- Metabolic priority: Your liver processes alcohol before everything else. While metabolizing alcohol, fat burning stops completely — fat oxidation drops by up to 73% in the hours after drinking.
- Appetite stimulation: Alcohol lowers inhibitions and stimulates appetite, particularly for salty, fatty foods.
- Sleep disruption: Alcohol reduces REM sleep quality, increasing hunger hormones the next day.
- Empty calories: Most people add alcohol calories on top of their normal food intake rather than substituting other calories.
- Visceral fat: Regular alcohol consumption is specifically associated with increased visceral fat ("beer belly").
Does Alcohol Type Matter?
Broadly, no — the ethanol content and total calories matter more than the source. However, mixers (sodas, juices, syrups) dramatically increase caloric content. A vodka-soda has ~100 kcal; a vodka-cranberry juice can exceed 200 kcal.
Frequently Asked Questions
Can I drink alcohol and still lose weight?Yes, but it requires accounting for alcohol calories in your daily intake. The main challenges are: alcohol's effect on food choices (snacking), disrupted sleep affecting hunger hormones, and the complete halt to fat burning while alcohol is metabolized.
Is red wine actually good for you?The resveratrol in red wine has been studied for cardiovascular benefits, but the amounts in wine are far too small to be clinically meaningful. The net health effect of regular alcohol consumption is negative for most people — no major health organization recommends alcohol for health benefits.