Red wine could be good for health as it is increasing the number of different types of helpful bacteria in the gut, researchers from the King's College London say.

The study analyzed data from thousands of people living in the UK, the US and the Netherlands. The participants are all twins enrolled in health research programmes, BBC reported.

They were asked about their diet and how much and what type of alcohol they typically drank. Those who prefer red wine appeared to have more diverse gut microbiota than those who drink non-red wine.

According to researchers, drinking a glass of wine a week is enough to achieve positive effect.