Perhaps you have read about research that goes well to get a beer or two for food. In the article videnskab.dk you healthy: Drink three glasses of beer one day says, for example, that it should be good for the heart.
But it may also be that you have read the opposite. Indeed, the research is not entirely clear. Although many studies suggest that 1-2 units a day reduce the risk of blood clotting and strokes, scientists can not be sure that it is actually the alcohol that has this effect.
Now, a major study on the topic of the The Lancet Science Magazine has been made. Researchers find no useful effect.
"It's a great study with an interesting method, but I'm not completely convinced that it can refuse a beneficial effect," says Jane Tustrup, a professor at the University of Southern Denmark.
We'll go back to the "interesting" method a little later in the article. First, we need to look at why it's so difficult to determine if any alcohol is useful or harmful.
Previous studies indicate beneficial effects
It does not get out of the air that any alcohol can have a beneficial effect.
In previous population surveys, among which, for example, videnskab.dk, researchers find the so-called curve in the form of the letter U. That is, those who do not drink alcohol and those who drink a lot of alcohol have an increased risk of clotting.