Red Wine and Gut Health Benefits

However, red wine can be a part of a balanced diet when consumed in moderation. There is some research that supports the potential health benefits of wine. O’Keefe wasn’t surprised that the best results came from the group drinking red wine—which had resveratrol levels 13-fold higher than the white wine, according to the study. “Partly it’s the benefits of the alcohol, but red wine also contains a lot of unique antioxidants that are hard to get other places,” O’Keefe says. And pairing it with dinner, like they did in the study, is key.

Research shows that drinking in moderation could reduce the risk of Alzheimer’s disease or other forms of dementia vs. no alcohol intake. Older studies also reveal associations between moderate red wine intake and health benefits among type 2 diabetics, whether well-controlled or not. Benefits included improved post-meal blood sugar levels, better next morning fasting blood sugar levels, and improved insulin resistance. Researchers keep studying whether red wine and other alcoholic drinks can help the heart. Those who drink regular, limited amounts of alcohol, including red wine, seem to have a lower risk of heart disease. Drinking regular, limited amounts is called drinking in moderation.

Heart Health

Red wine is rich in the antioxidant resveratrol, but research is mixed regarding its positive weight effects. Excess alcohol consumption — including red wine — may lead to weight gain. Sugary drinks don’t have the same problems, unless you have difficulty regulating your blood sugar. “For some folks with medical conditions such as diabetes, they urinate a lot already based on blood sugar level,” Mieses Malchuk says. “Therefore drinking a sugary alcoholic beverage can make it worse and cause dehydration.”

You’ll consume just under four grams of carbohydrate, including one gram of sugar, if you drink a glass of red wine. However, drinking alcohol is not safe for everyone, and drinking more than a moderate amount can cause serious health problems. People should speak to their doctor about consuming alcohol safely or limiting their consumption. That said, the impact of red wine on liver health is complicated. Although it provides antioxidants and reduces oxidative stress, drinking can also increase uric acid and triglycerides, which damages the liver. Other research indicates that drinking wine, even in moderate amounts, can increase the risk of developing breast cancer.

How to enjoy red wine while losing weight

This phrase refers to the observation that the French have low rates of heart disease, despite consuming a lot of saturated fat and cholesterol (2). Port wines are very sweet, have a lot of flavor, and are full-bodied, so you can sip them alone or pair them with cheese or nutty desserts. She said there are seven times more polyphenols in red wine than white and she believes that’s what explains the association with better gut bacteria. That’s likely due to the fact that white wine is typically made without the grape skins, Le Roy said. “If you had to choose one type of alcohol, red wine would be the one to pick,” Caroline Le Roy, PhD, a researcher at King’s College London and first author of the new study, told Healthline.

  • One study that included 256 women with migraine headaches showed that migraine severity, frequency, and duration were significantly lower in those who drank more water (12).
  • When its processed by enzymes in the liver, alcohol is converted into a large amount of acetaldehyde.
  • These polyphenols can also lessen the plaque toxicity that is already present in the body, thus reducing cognitive decline.
  • Moderate red wine consumption may reduce the dementia and depression.
  • Drinking regular, limited amounts is called drinking in moderation.

Milk is also a good choice to help you rehydrate, assuming your hangover hasn’t put you off dairy. The same 2016 study from the American Journal of Clinical Nutrition found that milk was more hydrating than water, sports drinks, coffee, tea, and a handful of other common beverages [6]. “You can’t entirely prevent it, but if you go into drinking well-hydrated, you are less likely to feel the negative effects of dehydration,” she says. Drinks that contained electrolytes—milk and oral rehydration solutions, for example—were more hydrating after two hours compared to water. [6] In other words, subjects peed less relative to their fluid intake two hours after consuming these drinks compared to water. For reference, a standard drink—12 ounces of beer, 5 ounces of wine, 1.5 ounces of liquor—has 14 grams of alcohol, according to the National Institute on Alcohol Abuse and Alcoholism [3].


A 2017 review found that resveratrol may have protective effects against lung cancer in both human and laboratory studies. The mechanisms include preventing cell proliferation and tumor growth, inducing cell death in cancer cells, and inhibiting metastasis. This is partly because it creates toxins in the body, damages body tissues, and creates oxidation.

does red wine dehydrate you

Here’s what you need to know about how alcohol dehydrates the body and how to drink responsibly. Significantly high levels of caffeine intake may contribute to dehydration by stimulating the body to release more liquid than usual. Research from 2017 indicates that low levels of caffeine ingestion do not cause dehydration. Participants who consumed does red wine dehydrate you over 500 milligrams (mg) of caffeine daily showed disruptions in fluid balance from the diuretic effects of coffee. A small amount of caffeine may not be an issue for most people, though increasing caffeinated beverages may contribute to overall caffeine intake. The body may tolerate a moderate intake of beer without experiencing dehydration.

Combining cardio and strength exercises may lower heart risks

Other research into the health benefits of red wine focuses on the particular qualities of red wine, many of which have not been fully explored. There is some evidence that drinking red wine may offer health benefits. If you are a nondrinker, health experts do not recommend that you start drinking alcohol. But if you enjoy alcohol in moderation, red wine is worth considering. A 2016 study found that people with conditions such as high blood pressure and high blood sugar saw improvements in the levels of beneficial bacteria in their gut after drinking red wine. As a result, you must understand how your body responds to wine consumption.

does red wine dehydrate you