Shell Ginger Tea - The Secret To Longevity

With a life expectancy of 83.7 years, Japan ranks No. 1 in the world when it comes to longevity (a position it’s held for more than 20 years). Comparing this to the global average of 69.1 years, it’s no wonder people have been trying to uncover the Japanese secrets to a long and healthy life.

Many of Japan’s longest-living people are from Okinawa, a chain of tropical islands in the southernmost part of Japan that is home to a large number of the world’s centenarians (people living to 100 years and more). Among the many reasons contributing to their longevity, nutrition and the "Okinawan diet" are said to be key factors.

So what makes the Okinawan diet so special? One local ingredient, known as gettou (月桃, alpinia zerumbet, moon peach, or shell ginger), has been the focus of various studies and is said to be a significant contributor to longevity in Okinawa.

Shell ginger is a plant that grows in abundance in Okinawa and has been used both in traditional Okinawan cuisine and as a traditional herbal remedy. It’s part of the ginger family and gets its name from its beautiful, pink, shell-shaped flowers.

Shell Ginger Plant and Flower

Results of recently published studies have shown that shell ginger contains abundant bioactive phytochemicals with additional anti-obesity, antioxidant, and anti-aging properties. In addition, animal studies have shown shell ginger to be a life-expanding plant and suggest that this plant, if used in humans, could expand their lifespan by 22.6%.

The leaves also work as a natural preservative and bug repellent and are used to help foods last longer. Okinawans use the leaves to wrap mochi (pounded rice cake mixed with kokuto (black sugar) or purple sweet potatoes—another staple in the traditional Okinawan diet), for steaming rice buns, meat, or fish, or dried into a powder and mixed with buckwheat to make local soba. However, one of the most common ways to consume it is by using its leaves and flowers to make shell ginger tea (one tea can have 34 times more polyphenols compared to red wine!).

                           
Mochi Wrapped in Shell Ginger Leaves   

Okinawan Purple Potato Mochi Wrapped in Shell Ginger Leaf

Shell ginger tea has a beautiful golden brown color when steeped and a subtle flavor with floral and clove undertones, followed by a slight spicy ginger aftertaste. Traditionally, this tea has been used to reduce fat absorption, increase metabolic rates, reduce inflammation and allergy symptoms, prevent high blood pressure and sudden rises in blood sugar, and improve digestion.

The taste alone makes this a favorite when it comes to Japanese tea. The added potential health and longevity benefits keep us coming back for more!

Beyond its physical benefits, shell ginger holds deep cultural meaning in Okinawa. Locals view the plant as a symbol of purity and protection, often planting it near homes and temples to ward off evil spirits and bring good fortune. During summer festivals, its flowers are used for decoration, representing vitality and rebirth—values closely tied to Okinawan spirituality and community life. This blend of practical health use and cultural reverence reflects how deeply nature is woven into the Okinawan way of living.

In recent years, researchers and wellness enthusiasts worldwide have turned their attention to shell ginger tea as part of a broader interest in “Blue Zone” diets—regions known for exceptional longevity and low chronic disease rates. Scientists continue to explore how its unique combination of polyphenols, essential oils, and flavonoids may contribute to cellular health and resilience against aging. While more human studies are needed, shell ginger tea stands as a beautiful example of how ancient traditions and modern science meet—offering both a soothing cup and a reminder of the harmony between nature and longevity.

1. The Science Behind Shell Ginger’s Longevity Power

The plant is rich in polyphenols, flavonoids, and essential oils—compounds known to protect cells from oxidative stress and inflammation. One key component, dihydro-5,6-dehydrokawain (DDK), has been linked to fat metabolism and anti-aging effects. Animal studies suggest that regular intake of shell ginger extract could support longer lifespans by improving metabolic efficiency and reducing cell damage. Although human research is still limited, these findings highlight how traditional Okinawan wisdom aligns closely with modern nutritional science.

2. The Role of Shell Ginger in the Okinawan Lifestyle

In Okinawa, shell ginger is more than just a tea—it’s a part of daily life and cultural identity. Families use its broad, aromatic leaves for cooking, preserving food, and even for ceremonial purposes. Many homes plant shell ginger near their entrances to invite health and protection, a tradition passed down for generations. In local cuisine, it’s found in mochi, soba noodles, and steamed fish dishes, blending function with flavor. This deep integration of food, culture, and wellness helps explain why the Okinawan lifestyle is globally recognized as a model for balance, mindfulness, and longevity.

3. How to Enjoy Shell Ginger Tea at Home

Brewing shell ginger tea is simple, but the experience is deeply soothing. To prepare, steep 1–2 teaspoons of dried shell ginger leaves or flowers in a cup (250 ml) of hot water—just below boiling—for 5 to 7 minutes. The resulting golden-brown tea offers a floral aroma with subtle spice and sweetness. For a refreshing summer drink, brew it stronger and serve over ice with a slice of lemon or a touch of Okinawan black sugar (kokuto). Regularly enjoying shell ginger tea can become a mindful ritual—one that not only nurtures your body but also connects you to the centuries-old Okinawan art of healthy living.

Conclusion

Shell ginger tea beautifully captures the heart of Okinawan wisdom—where food, nature, and health exist in perfect harmony. Its rich antioxidants, soothing aroma, and deep cultural roots make it more than just a beverage; it’s a daily ritual that embodies balance and vitality. Whether you’re seeking a gentle way to support your wellness journey or simply wish to savor a piece of Okinawa’s long-life tradition, a warm cup of shell ginger tea offers the perfect invitation to slow down, rejuvenate, and live well.

About the author

Lillian Rowlat is co-founder of Kokoro Care Packages, which offers hand-crafted monthly and seasonal Care Packages filled with premium-quality, all-natural Japanese foods delivered straight from Japan to your door. Each item (including snacks, spices, soups, teas, and more) is carefully selected for its quality, ease of use, and, of course, great taste! All products are free from chemicals, and many cannot be found outside of Japan. They work closely with local producers who share their values and are passionate about the products they create. They also proudly share the stories behind the producers, farmers, and regions from which the foods are produced. Their mission is to reconnect people and communities over a shared meal. You can learn more about Kokoro Care Packages at www.kokorocares.com or @kokorocares. You can also reach them at info@kokorocares.com.