Here’s What Happens When You Drink Red Wine Every Night

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Alcohol is the Goldilocks of the nutrition world. Too much can be destructive to your health, raising your blood pressure and your risk of developing several kinds of cancer. Too little may hold you back from some of the benefits that moderate drinkers enjoy, like lower incidence of cardiovascular disease, mortality and type-2 diabetes.

The amount that’s just right, according to a new study published in the Annals of Internal Medicine, might be a nightly glass of wine with dinner—for some people, anyway.

Researchers from Ben-Gurion University of the Negev in Israel wanted to look at how safe and effective it is for a specific group of people—those with well-controlled type-2 diabetes and who had a low risk for alcohol abuse—to drink moderately. People with type-2 diabetes are more likely than the general population to develop cardiovascular disease and have lower levels of heart-protective HDL cholesterol, the authors note.

They chose 224 people who fit this profile, and who didn’t drink wine currently, then assigned them to start drinking one of three things. At dinner, the people in the study were told to drink five ounces of one of the following beverages: mineral water, dry white wine or dry red wine. Under the guidance of dietitians, they also followed a Mediterranean diet without calorie restrictions—and kept it up for two years.

Intermittently, they took questionnaires and were subjected to follow-ups, including blood draws at the start of the study, six months in and at 24 months, so the scientists could look at biomarkers of glycemic control, lipids and liver function.

They found that the red wine drinkers had significantly increased their levels of good HDL cholesterol and had a more beneficial cholesterol ratio compared to the group that drank water. They were also the only group to experience a significant drop in components of metabolic syndrome. People who drank either red or white wine also reported better sleep quality than the group that drank water, and the researchers found no significant adverse effects with any group.

(It’s worth making it explicit that those who drank alcohol, drank just one glass per night, with meals.)

This article originally appeared on Time.com.

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