The study team asked 17 people to sample either beer, non-alcoholic beer, or vodka on three occasions spread out over several weeks. The researchers also kept tabs on several measures of arterial health. Here’s what they discovered: Compared to vodka and non-alcoholic beer, sipping on full-strength suds boosted some blood-vessel functions more than 50%. And while all three drinks improved some aspects of heart health, regular beer was consistently shown to be the most beneficial, the research shows. What’s so great about beer? Along with ethanol—which is found in any alcoholic beverage and has been linked to some health advantages—beer contains many of the same all-star antioxidants found in wine, as well as several potentially heart-helping flavonoid compounds, the study authors say. They can’t point to the specific ingredients that give beer its healthful properties. But the research data indicates a bottle of brew can ease the flow of blood to and from your heart. So is beer better for you than wine? The jury’s not out, the study says. A couple research teams have compared the two drinks without crowning a heart-health champion. But because wine and beer contain different types and amounts of healthful compounds, you’d be well advised to sample both from time to time, the research suggests. How much should you drink? In the study, the participants drank roughly 12 ounces of beer—the amount usually found in one can or bottle. You don’t need much to experience the heart benefits. Just try not to have your drink within an hour of bedtime. Alcohol disrupts your sleep, and losing ZZZs is likely to offset any health gains your might experience from your brew. More from Prevention: Are You Allergic to Wine (And Don’t Know It)? and 6 Signs You’re Drinking Too Much