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Wine Is Rich in Healthy Polyphenols. But What Is Polyphenol?

Jun. 18, 2020

Polyphenols play an important role in the health reputation of wine. But can you really explain why polyphenols in wine are good for you? What is even polyphenol? Wine bottle factory shares with you.

What is a polyphenol?

Let's start with a more common term in the wine health vocabulary: antioxidants, a molecule that prevents the harmful effects of oxidation. Not to be confused with the defects caused by the oxidation of wine (which is not harmful to your health). Oxidation in the human body is the decomposition of oxygen molecules caused by environmental factors such as daily exercise, metabolic food, and exposure to air pollutants. These chemical reactions generate free radicals, leading to aging, inflammation, and even cancer.

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Polyphenols are a type of antioxidant. Their name comes from their structure: "phenol" is a compound; "poly" refers to more than one compound that makes up the molecule. There are tens of thousands of different types of polyphenols naturally in plants. Depending on the specific needs of each plant, the role of polyphenols can range from helping to produce pigments to providing UV protection to repairing physical damage.

The polyphenols of wine come from grapes, mainly from grape skins, and because the red wine brewing process involves more long-term contact with grape skins, these wines often contain more polyphenols than white wines. In general, the polyphenol content in red wine has been praised by health-conscious drinkers, but there are also specific polyphenols in red wine, which have been studied separately because of their potential health benefits.


Resveratrol is one of the most widely studied polyphenols in wine. It is naturally produced by plants when they are physically injured or invaded by pathogens. Resveratrol is also abundant in peanuts, blueberries and cocoa. Resveratrol is extracted from plants to make cosmetics and dietary supplements.

In laboratory studies, scientists have found that resveratrol has protective effects on many human health risks. Its two main benefits are the potential to fight different cancers by inhibiting the growth of cancer cells and by preventing blood vessel damage, lowering bad cholesterol and raising good cholesterol, and the potential to fight cardiovascular diseases.

The researchers also found that resveratrol can help slow down the development of neurodegenerative diseases such as Alzheimer's disease and remove harmful plaque buildup in the brain, which can help fight Alzheimer's disease. It can also prevent type 2 diabetes by helping regulate insulin.

Resveratrol's anti-inflammatory properties also make it a research focus for inflammation-related health problems, such as lung disease and mental health disorders.

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