REVEALED: The exact type of wine that has the lowest sugar count and fewest calories, according to a dietician

Dry white wine is the healthiest wine because it contains less sugar and alcohol, experts say.

Debbie Petitpain, a registered dietitian and spokesperson for the Academy of Nutrition and Dietetics, said dry white wines such as German Riesling contain less residual sugar – natural sugars that remain in the liquid after the grapes have fermented.

Dry white wine has very little because it must ferment until almost all the sugar has been converted into alcohol.

This gives it its unsweetened, dry taste.

For example, German Riesling also has a lower calorie value (about 120 calories in one glass) and only one gram of sugar.

Some wines, such as Moscato dessert wines, sweet Riesling or Port, have extra sugar added.

The Dietary Guidelines for Americans recommend no more than one drink per day for women and two drinks for men.

This is equivalent to a standard five-ounce glass of wine with an alcohol content of 12 percent (ABV).

Dry white wines typically contain between nine and 11 percent alcohol, Ms. Petitpain said USA today.

Dry white wine is the healthiest wine because it contains less sugar and alcohol, says Debbie Petitpain, a registered dietitian and spokesperson for the Academy of Nutrition and Dietetics. But previous research has also found that red wine is beneficial for heart health

It also matters where the wine is made.

In warmer regions, grapes take longer to grow and are riper when picked, meaning they contain more sugar and alcohol.

Cool-climate wine regions, where the wine is less sugary and alcoholic, include parts of the Pacific Northwest, northern France, New York, Chile, Hungary, New Zealand, northern Italy, South Africa, Austria, Germany, and -Greece and Macedonia.

Other ways to make your wine healthier are to turn it into a spritzer by adding soda or flavored sparkling water.

This gives you a larger serving without adding more alcohol or calories to your drink, Ms. Petitpain said.

There is some evidence that red wine in moderation is good for the heart.

The main 'magic' ingredient in wine is a chemical called resveratrol, and by far the highest doses are found in red wine.

This is because resveratrol is found in the skins of grapes, which, unlike white wine, remains in the mixture of red bottles.

Research from the highly respected Mayo Clinic in Minnesota shows that resveratrol may help prevent blood vessel damage, reduce low-density lipoprotein cholesterol (the “bad” cholesterol), and prevent blood clots.

According to studies, Pinot Noir and Malbec contain some of the highest amounts of resveratrol.

Registered dietitian Kerri-Ann Jennings told Healthline that red wine is slightly healthier than white because it contains more vitamins and minerals, but she noted that white wine has fewer calories.

But registered dietitian Alex Aldeborgh told USA Today, “You would have to drink a lot of red wine to get those beneficial effects for your health, so (the recommended) one glass of red wine a day won't provide enough.”