Water

More than 90% of beer is water. Thus beer can make a contribution to the daily fluid supply, which has to be at least 1.5 to 2 litres a day. On the other hand, alcohol also has a dehydrating effect (you have to go to the toilet more often), whereby fluid will be lost more quickly.

Fat, sugar and proteins

Beer contains no fat, very few proteins (less than 0.5%) and a small quantity of sugar (around 3%).
Because beer contains no fat, it does not have the fattening properties that are sometimes attributed to it. In addition, beer contains no cholesterol and no dioxin as dioxin is only soluble in fats.
The protein fraction in beer has no nutritional value, and is only there to foster the formation of the head. The sugar on the other hand does have a certain nutritional value and largely comes from the barley. Most sugar in beer is in the form of maltose and glucose. Their quantity fluctuates between 35 and 40 g per litre of lager. Other types of beer generally contain more fermented sugars.

Vitamins

The yeast cells added to the beer during the brewing process produce vitamin B while growing and many of these vitamins stay in the beer. The more the beer is filtered and clarified, the more vitamins are lost.
A (25cl) glass of lager still contains 0.07 mg vitamin B2, 0.01 mg vitamin B1, and 0.12 mg vitamin B6. As a comparison: one slice of brown bread contains 0.02 mg vitamin B2, 0.06 mg vitamin B1, and 0.05 mg vitamin B6.
With a moderate intake, beer can make a contribution to the vitamin requirements. On the other hand, it is not so that with excessive consumption a good reserve of vitamins is created. On the contrary, the more beer consumed the greater the vitamin requirement (especially vitamin B1).

Minerals

Beer contains a number of trace elements and minerals. The quantities of them depend on the origin of the raw materials, the method of preparation, and the production process.
The presence of certain minerals such as iron, chromium, copper, silicon and potassium can certainly be classed as positive. Less desirable trace elements such as cobalt and lead are practically non-existent.
Sodium (salt) is almost absent which is certainly positive as our diet already contains more than enough salt (sodium chloride). Through its dehydrating effect, beer ensures that the excess salt accumulated in our body can be excreted via the kidneys.

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