It is said that a glass of red wine a day lengthens life and indeed a new study seems to confirm it, even if the doses are not exactly those reported by tradition. This drink in fact would have the ability to increase the variety of microorganisms that compose the intestinal flora, thus helping to combat obesity and bad cholesterol.

Red wine is good: those who drink a few glasses have a healthier intestinal flora than those who do not. It helps to increase the variety of intestinal flora and reduce obesity risk and high cholesterol levels.

It is the conclusion of a study signed by scientists of King’s College London (Gb) on ‘Gastroenterology’, which shows that the microbiome of lovers of red is better than that of non-drinkers, while no effect is observed in those who prefer wine white, beer, cider or spirits. However, the good news does not offer alibi to ‘black’ fans: according to experts, in fact, the benefits on the bacterial flora can also be obtained from a single glass every 15 days.

Red wine is good for the bacterial flora of the intestine: here are the right dosesAlthough we observed an association between the consumption of red wine and the diversity of the intestinal microbiome – Caroline Le Roy, the first author of the work points out – to drink red wine rarely, as once every 2 weeks, seems to be sufficient to observe a effect“. “If you have to choose an alcoholic beverage, red wine is the right one – the researcher suggests – because it seems to have a beneficial effect on you and your intestinal microbes, which in turn help to keep weight and risk under control of cardiovascular diseases“. However, the fact remains that “it is advisable to consume alcohol in moderation“.

Red wine is good: polyphenols are the secret to the well-being of intestinal flora 

The study, conducted by the Department of Twin Research & Genetic Epidemiology of King’s College London, is described as “one of the largest ever performed on the effects of red wine“. These were analysed “in the gut of nearly 3,000 people in 3 different countries“, specifies the main author of the paper, Tim Spector, clarifying how “the high levels of polyphenols present in the grape skin” – which enters the process vinification of red, but not white – “could be responsible for many of the controversial benefits of the drink, if taken in moderation“.

Red wine is good for you: other alcoholic drinks do not have the same positive effect on the bacterial flora 

The researchers compared the impact of red wine, white wine, beer, cider and spirits on the microbiome of 916 UK female twins, discovering that only the bacteria of red wine drinkers showed more variety than those of non-drinkers. An element considered a health advantage, a ‘shield’ against the risk that the imbalance between good and bad microbes can negatively affect the immune system, weight or cholesterol levels.

Red wine is good for everyone’s intestinal flora, regardless of social class

The observation was then confirmed in 3 different cohorts in the UK, USA and the Netherlands, also taking into account possible confounding factors such as age, weight, diet and socio-economic status. The conclusions did not change: red wine is a friend of the microbiome, therefore of the general well-being of the organism, provided you do not overdo it.