How Many Calories Does Beer Have? Consequences for the Body
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Beer, one of the most widespread alcoholic beverages in Europe, is regarded by enthusiasts as simply a perfect thirst quencher on hot days, facilitates relaxation after a strenuous day of work, and warms the body as mulled beer on cooler evenings. However, it should be emphasized that excessive consumption of this drink can lead to serious diseases that pose a serious threat to health and even life.
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Beverage of beer and its components
Beer is an alcoholic beverage that is produced through the fermentation process of cereal products, typically containing 5-8% alcohol. Its main component is water (91%), with the remaining components being malt, hops, and yeast. As new flavors of beer emerge in the market, sugar and flavors may also be included in the components. The primary criterion for classifying beers is the type of yeast used: Lager - lower fermentation, Ale - upper fermentation. Additionally, the type of malt used (wheat, barley, caramel, or roasted), hops, and used flavors influence the classification. All these components affect the taste, color, clarity, as well as the density and color of the beer's foam.
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Individual calories in beer
A beer bottle with a volume of 0.5 liters typically contains around 250 calories. Therefore, it is difficult to consider it as low-calorie. However, is it really so? It should be taken into account that beers are available in large packages and the main components affecting the calorie content are carbohydrates and alcohol. Beer lacks valuable proteins and fats. If we decide to try beers with different flavors, we should expect additional calories in the product. The addition of sugar and flavors can increase the calorie content even up to 70 calories per 100 grams. Non-alcoholic beer will be less caloric, containing about 30-40 calories per 100 grams.
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Nutritional components in beer
Beer primarily consists of water and contains small amounts of nutritional components. It serves as a source of vitamins B2, B3, and B6, which participate in numerous metabolic pathways and exert influence on the synthesis of amino acids, such as tryptophan. The nutritional value per 100 g of product:
Energy:
49 kcal,
Protein:
0.5 g,
Fat:
0 g,
Carbohydrates:
3.8 g,
Fiber:
0 g. Macro- and micronutrients:
Sodium:
3 mg,
Potassium:
26 mg,
Calcium:
6 mg,
Phosphorus:
26 mg,
Magnesium:
9 mg,
Iron:
0.1 mg,
Manganese:
0.03 mg,
Iodine:
0.7 µg. Vitamins:
Thiamine:
0.004 mg,
Riboflavin:
0.018 mg,
Niacin:
1.3 mg (approx. 11% of the daily requirement),
B6:
0.02 mg (approx. 2% of the daily requirement),
Folate:
6 µg.
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Which beer is the best to consume?
Beer contains a certain amount of vitamins and minerals, but it is important to note that the pasteurization process destroys not only microbes but also nutrients. Therefore, it is recommended to consume unfiltered and unpasteurized beer. It is also advisable to avoid consuming flavored beers, unless they contain natural fruit juices, which can provide an additional source of vitamins and nutrients.
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Impact on the Body
Beer beverages possess soothing and sleep-promoting characteristics. A study conducted in 2018 discovered that moderate consumption of wine and beer can contribute to an increase in levels of desirable HDL cholesterol and adiponectin, which exhibit anti-inflammatory, antithrombotic, and insulin-sensitizing effects. Furthermore, beer has diuretic properties and stimulates digestive functions and appetite. A bactericidal effect and blood pressure-lowering action have also been observed. Additionally, due to its content of small amounts of B vitamins, beer may exert a beneficial impact on the proper functioning of the brain, nervous system, and hormonal system.
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Detrimental effects of beer consumption
It is essential not to overlook the fact that beer can have a detrimental impact on the human body. Its glycemic index is 110, which contributes to a sharp increase in blood glucose levels. Such a situation is highly dangerous, particularly for individuals with diabetes. Frequent consumption of beer can contribute to overstimulating the pancreas to produce insulin (to lower blood glucose levels), which increases the risk of type 2 diabetes and insulin resistance. Furthermore, drinking beer is strictly contraindicated for individuals with gout. This product contains purines that convert into uric acid, and an excessive accumulation of this substance can cause painful attacks of the disease. Moreover, any alcohol (including beer) can put a strain on the kidneys and have a dehydrating effect. It is essential not to overlook the fact that drinking beer often goes hand in hand with eating salty snacks, which can increase the risk of heart disease (coronary artery disease, hypertension, heart attack) and obesity.
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Beware of gluten
As previously stated, beer is predominantly made from wheat and barley. Therefore, those who suffer from celiac disease, gluten sensitivity or gluten allergy and wheat should avoid this alcoholic beverage. Instead, they can opt for ciders, which are a safer alternative. Initially, cider was produced from apples, but due to growing demand, producers have already created new flavor variations. Ciders from specific apple varieties - Antonówka, Papierówka, honey cider, and beverages imitating these refreshing drinks - pear and strawberry - are available in the market.
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Utilizing beer in culinary preparations
Beer can be utilized in the kitchen for the preparation of sauces or marinating meat, such as chicken. Alcoholic desserts with beer flavor have recently emerged on the market. A single bottle of regular beer (500 g) contains 245 kcal, while a bottle of flavored beer (500 g) contains 270 kcal.
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Scientifically reviewed by a clinical dietitian
• 23.03.2026
mgr Nova E. et al., Wine and beer within a moderate alcohol intake is associated with higher levels of HDL-c and adiponectin, „Nutrition Research” 2018, 63, 42–50. Najwięcej witaminy mają… czyli jakie wartości odżywcze znajdziemy w kuflu piwa, beerlovers.pl/artykul/najwiecej-witaminy-maja-czyli-jakie-wartosci-odzywcze-znajdziemy-w-kuflu-piwa/ (23.04.2019). Normy żywienia dla populacji Polski, pod red. Jarosza M., Warszawa 2017. Panczykowski M., Co zawiera piwo?, edunauka.pl/biochpiwo.php (23.04.2019).
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