You’re a pro at checking labels at the grocery store, but when you hit the liquor store for a bottle of wine, nutrition facts are nowhere to be found.

Luckily, armed with some basic knowledge, you can easily figure out which wines are the best buys for your bikini body as well as your palette. We spoke with wine expert Madeline Puckette, cofounder of Wine Folly, who shared her best tips for finding great-tasting wines that won’t derail your diet.

1. Check the ABV. While there are no actual nutrition labels on bottles of wine, there is one indicator you can use to approximate calories: the Alcohol by Volume (ABV) percentage. ABVs can range from 9 percent for low-alcohol wines up to 17 percent for some dry wines. “Aim for an ABV that’s between 9 to 12 percent, which equals 110 to 140 calories per six-ounce pour,” Puckette says. The amount of alcohol in wine has more influence on calorie count than carbs, since alcohol has seven calories per gram, while carbs (i.e. sugars) have four. So a lower-alcohol wine has fewer calories than higher-alcohol wines, independent of the amount of sugar. (Check out Wine Folly’s helpful infographic, below.)