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Image Source: Getty ImagesKnown for its heart-boosting properties, red wine offers a range of other health benefits as well. To answer the timeless question of whether red wine is good for your health, here's what nutrition experts and scientific research have to share. From improving memory to supporting dental health, let's take a look at the diverse advantages of red wine.
1. Enhances Memory and Brain Function
Red wine is packed with polyphenols, antioxidants that help the body combat disease, among other health benefits. One such polyphenol, resveratrol, found in red wine, may also enhance short-term memory. Research indicates that resveratrol can reduce the damage caused by sleep deprivation, such as memory loss, and improve your ability to learn and process information.
An unexpected health benefit of red wine is its potential to reduce the risk of dementia, a group of conditions affecting memory (typically in older adults). 'Research shows that red wine intake can lower the likelihood of dementia, which often leads to Alzheimer's disease,' explains nutritionist Sally Stevens, RDN.
The key is moderation. Drinking red wine in excess can increase risks, so it’s best to limit your intake to around a 5-ounce glass of wine per day, as recommended.
2. Supports Eye Health
Red wine's health benefits extend even further due to the presence of resveratrol. Thanks to its ability to enhance blood vessel function, red wine may improve microcirculation in the eyes, which can contribute to better eye health and help prevent issues like age-related macular degeneration, diabetic retinopathy, and glaucoma—conditions that can lead to vision loss.
3. Enhances Heart Health
One of the most praised benefits of red wine is its potential to improve heart health. The consumption of polyphenol-rich foods and drinks, like red wine, has long been linked to a reduced risk of heart disease.
Red wine may help protect the inner lining of blood vessels in the heart, while also increasing HDL (or "good" cholesterol), which aids in removing "bad" cholesterol from the body. (High levels of bad cholesterol can raise the risk of heart disease and stroke.)
"Drinking wine might contribute to lowering low-density lipoprotein (LDL), commonly referred to as bad cholesterol," says Stevens. "[Elevated LDL] can lead to damage to the arteries."
4. Supports Dental Health
Research suggests that red wine can contribute to maintaining oral health. The polyphenols in red wine can help combat harmful bacteria in the mouth that contribute to tooth decay and gum disease. By preventing bacteria from adhering to teeth and gums, red wine can help avoid issues like cavities and plaque buildup.
5. Lowers Cancer Risk
Certain studies suggest that red wine may reduce the risk of cancer by inhibiting the growth of cancer cells, especially those linked to breast cancer and esophageal cancer. This is due to resveratrol, a polyphenol found in grape skins, which has been shown to kill cancer cells, according to cancer experts.
Polyphenols also deprive cancer cells by blocking a key protein that fuels their growth. "Resveratrol is a potent antioxidant found in grape skins and red grape juice," says Stevens. "Antioxidants support the body in fighting off free radicals that can harm our cells and organs."
6. Assists in Blood Sugar Regulation
Even though red wine contains natural sugars, it can help regulate blood sugar levels. Drinking a glass of red wine may lower your blood sugar for up to 24 hours, which can benefit those with elevated blood sugar. While it shouldn't replace medication or treatment plans for blood glucose management, it can serve as a helpful dietary supplement when consumed in moderation.
7. Helps Combat Viruses
Maintaining a strong immune system is vital in defending against viruses, and red wine may provide an additional benefit. Its antioxidant content contributes to immune-boosting properties. "Wine is rich in antioxidants, particularly flavonoids, which can help fight viruses," explains Stevens.
8. Regulates Blood Pressure
The polyphenols in red wine may also aid in lowering or controlling blood pressure. Research has shown that consuming dealcoholized red wine (wine with the alcohol removed) improves both systolic and diastolic blood pressure. Furthermore, grape wine extract, which is also rich in polyphenols, can reduce both systolic and diastolic pressure, regardless of the alcohol content.
9. Affects Gut Health
The polyphenols in red wine may also influence the balance of your microbiome or healthy gut bacteria. A balanced microbiome can help prevent disease, while an imbalanced one can impair immune function, leaving you more vulnerable to illness.
10. Promotes Bone Health
Resveratrol, a compound found in red wine, has been linked to improvements in bone density and strength, according to emerging research. These studies suggest that moderate red wine consumption could lower the risk of osteoporosis, a condition that weakens bones and increases the likelihood of fractures. However, excessive alcohol consumption can have the opposite effect, damaging bone density and strength.
11. Complements Healthy Foods
Pairing wine can turn into a delightful hobby that encourages you to enjoy more nutrient-rich foods. Here are a few red wine pairings worth trying:
- Cabernet Sauvignon: This grape is the most widely planted variety across the globe. Known for its bold flavors of blackberry, Cabernet Sauvignon pairs beautifully with grilled vegetables.
- Merlot: Often recommended as a beginner's red wine due to its fruitier notes, Merlot is the second most popular grape worldwide and goes wonderfully with a healthy beet salad.
- Zinfandel: With a taste that varies by region, Zinfandel is recognized for its juicy flavor and higher alcohol content. It pairs well with spiced pecans.
- Malbec: Originating from France, Malbec is known for its cherry and plum flavors that complement hearty grains and vegetables.
- Pinot Noir: Known as one of the lightest red wines, Pinot Noir carries a cranberry or raspberry flavor that pairs excellently with roasted salmon.
A standard serving of wine is 5 fl oz with an alcohol content of 12% ABV. The recommended daily limit for red wine (or any wine) is one 5-ounce serving for individuals assigned female at birth and two 5-ounce servings for individuals assigned male at birth.
