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Influence of Alcohol Consumption on Weight Reduction Processes
Metabolic Processes
Energy Source
Metabolic
Max Müller
Author
2026-03-19
Date
4 min. read
article.read_time
3
Chapters
When we adhere to a weight-reducing diet, we primarily focus on removing heavily processed products with high sugar and fat content from our diet, but alcohol should also be taken into account, which is of significance to our bodies, serves as an energy source, and has a substantial impact on metabolic processes.
Alcoholic drinks, specifically ethanol
Alcoholic drinks, which contain ethanol, are consumed in various forms, classified by their alcohol content. This allows us to differentiate between high, medium, and low-alcohol beverages, including cocktails. For a drink to be considered alcoholic, the minimum ethanol concentration should exceed 0.5% by volume. The effects of alcohol consumption on the body are generally negative, and for good reason.
Alcohol as an energy source in the form of calories
Alcohol is generated through the fermentation of carbohydrates from various sources, such as grains in beer or grapes in wine. In high-proof beverages, the content of unfermented carbohydrates is minimal. Conversely, sweet wines and liqueurs contain a higher carbohydrate content that can be metabolically utilized. The caloric value of alcohol depends on its type, with pure alcohol providing 7 kcal per gram (29.3 kJ). Depending on the variety, the energy content ranges from 80 kcal per 100 grams in white wine to 327 kcal per 100 grams in liqueurs. According to the Institute of Food and Nutrition, alcohol should be completely excluded from the diet. Individuals who do not wish to abstain from alcohol should adhere to guidelines for moderate consumption, which is approximately two servings per day for men and one for women. One serving is equivalent to, for example, 25 ml of strong alcohol, 100 ml of wine, or 200 ml of beer.
The impact of alcohol consumption on weight loss
Regular alcohol consumption, particularly in excessive amounts, results in more negative consequences than benefits. Excessive alcohol is harmful as it disrupts metabolic processes, impairs digestion, and hampers nutrient absorption. Alcohol itself provides negligible nutritional value, yet its high caloric content makes it a source of empty calories. A common practice involves reducing food intake to favor alcohol consumption, aiming to maintain a negative energy balance. However, this approach not only deprives the body of essential nutrients but can also lead to eating disorders like alcorexia. Research confirms a link between excessive alcohol intake and weight gain. The excess calories do not solely come from alcohol but also from accompanying snacks, flavor enhancers, and beverages. Excessive alcohol consumption disrupts metabolism by prioritizing ethanol metabolism, which slows down the breakdown of other nutrients. When aiming for weight loss, it is best to completely avoid alcohol. This decision positively impacts weight reduction and overall health. It is also crucial to consider whether excess weight is due to alcohol overconsumption. In such cases, eliminating this factor alone can lead to weight loss. If you choose to consume alcohol, do so in moderation. Opt for the least caloric options like wine, avoid snacks, and ensure proper hydration due to alcohol's diuretic effect.
