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Jan 27, 2023

HOW TOIs Japanese Green Tea Effective against Viral Infection? The Power of Catechins

Japanese green tea, rich in antioxidant, antiviral and immune-boosting properties, is an ancient elixir known for grassy, pungent, powerful flavors and numerous health benefits. One secret to Japanese longevity, green tea might even keep infection at bay.

Jan 27, 2023

The proven health benefits of green tea

Japanese green tea has been a staple beverage in Japan for centuries. It is considered one of the healthiest beverages on the planet, including a number of well-documented health benefits:

  1. Cancer prevention: Studies have suggested that the antioxidants in Japanese green tea may help to prevent the growth and spread of cancer cells, particularly in the colon, lungs, stomach and skin.
  2. Weight loss: The caffeine and catechins in Japanese green tea may help increase metabolism and fat burning, which can help promote weight loss.
  3. Brain health: The caffeine and L-theanine found in Japanese green tea can improve brain function and reduce the risk of cognitive decline and neurodegenerative diseases.
  4. Oral health: Japanese green tea can help inhibit the growth of bacteria in the mouth, reducing the risk of tooth decay and gum disease.
  5. Anti-aging: The antioxidants in Japanese green tea can help protect against skin damage caused by the sun and improve skin elasticity, which can help prevent the signs of aging, resulting in a more youthful appearance.
  6. Heart health: Japanese green tea is high in catechins, specifically EGCG, which can help lower cholesterol and blood pressure and improve the function of blood cells, reducing the risk of heart disease.

EGCG – a powerful antiviral polyphenol

Catechins are a type of antioxidant found in large amounts in Japanese green tea, particularly in the form of EGCG (epigallocatechin gallate). These powerful antioxidants have been shown to have anti-inflammatory and immune-boosting properties, which can help to reduce the risk of infection and improve immune system function. 

A study conducted in 2020 found that these catechins, specifically EGCG, have antiviral properties, which can help to fight off viruses, including the SARS-CoV-2 virus that causes COVID-19. The study also showed that EGCG effectively blocked the replication of the virus in lab-grown cells, suggesting that it could potentially be used as a preventative measure against COVID-19.

Green tea for immune system stay strong

Since Japanese green tea is rich in antioxidants, particularly catechins, it can help boost the immune system. Some studies have even shown that regular Japanese green tea consumption may improve immune cells’ function, such as T-cells and natural killer cells, which play a crucial role in fighting off infections. 

Another study has shown that green tea can help to reduce the risk of upper respiratory tract infections, such as the common cold. The study found that participants who consumed green tea regularly were less likely to develop a cold and had fewer symptoms if they did get infected.

Additionally, Japanese green tea also contains L-theanine. This amino acid is known to have calming effects that can help reduce stress and anxiety, which can weaken the immune system by reducing the production of the stress hormone cortisol.

Good for prevention – but not a silver bullet

Remember, although drinking Japanese green tea can help boost your immune system, it’s not a cure-all. It should not be considered a replacement for other healthy habits such as eating a balanced diet, getting enough sleep and regular physical activity. 

If you’re looking for a healthy and delicious beverage to add to your diet, consider giving green tea a try! It can be enjoyed in many ways – from hot tea to iced, with honey, used as a soup base, or in desserts in matcha powdered form. We hope you find the Japanese green tea for you, and embrace the wonderful world of Japanese dietary and health habits.