See also: the harm of smoking
Among the macronutrients we must also consider alcohol, since 1 gram of this substance produces seven calories. These calories are defined as "empty", since their nutritional intake is zero.
A moderate amount of alcohol can be harmless and according to some even positive, thanks to the stimulation of the digestive processes and the ability to lower LDL cholesterol (attributed to red wine and partly also to beer). Excess alcohol, however, is certainly harmful, as the body's ability to metabolize it is limited (8 g per hour).
Alcohol is disposed of better on a full stomach, induces you to eat more and is burned earlier than fat, saving lipids and increasing fat mass. The best way to gain weight quickly is to consume FAT-SUGAR and ALCOHOL in the same meal.
On the nervous system, alcohol first has a euphoric and disinhibiting effect, but later leads to acute depression. At a dietary level it leads to imbalances in particular in the metabolism of proteins and some vitamins (first of all B12 and others of group B ); it has a significant dehydrating effect, because it inhibits the production of the antidiuretic hormone ADH, which serves to regulate the elimination of water from the body. Also on a hormonal level, alcohol leads to a decrease in testosterone in the blood and an increase in the female hormones PROLACTIN and ESTROGEN, with a decrease in libido in both sexes.
In conclusion, we can say that alcohol has no place in healthy diets and even less in sports, if not occasionally through the moderate consumption of low alcoholic beverages (preferably beer and red wine).
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