GABA Tea: Its Production and Varieties from


Introduction to GABA Tea

GABA tea, a remarkable tea variant, has garnered attention for its unique health benefits, primarily attributed to its high levels of Gamma-Aminobutyric Acid (GABA). This natural compound plays a crucial role in calming the nervous system, making GABA tea a popular choice for those seeking relaxation and stress relief.

In this article, we'll delve into the production of GABA tea, highlight its health benefits, and explore the diverse range of GABA teas available at, a webshop for tea connoisseurs.


GABA tea, 佳叶龙茶, is distinguished by its unique production process that involves an oxygen-free fermentation, leading to the accumulation of GABA (Gamma-Aminobutyric Acid) in the tea leaves. This innovative method was developed in Japan by Dr. Tsushida and his team at what was then the MAFF National Research Institute of Tea (TSUSHIDA et al., 1987) (now the National Institute of Vegetables and Tea Science). 

Their research, starting in 1984, resulted in the creation of a novel type of tea. This tea is characterized by the transformation of nearly all its glutamic acid into GABA, without altering its catechin or caffeine content. 

The technique entails a specific fermentation process under anaerobic conditions, where the tea is exposed to nitrogen instead of oxygen for six to ten hours, significantly increasing the GABA content in green, oolong, and black teas.

This discovery sparked considerable interest among Japanese scientists and led to the commercialization of GABA tea in the late 1980s, primarily targeting individuals with hypertension. 


The Science Behind GABA Tea

Understanding GABA: The Key Ingredient

GABA, a neurotransmitter in the brain, is essential for regulating brain activity and reducing neuronal excitability throughout the nervous system. Its presence in tea is significantly increased through a unique fermentation process, distinguishing GABA tea from other tea varieties.

Clinical studies have shown that both chemically synthesized GABA and GABA tea can lower blood pressure in humans (Stanton, 1963) and experimental animals (Elliott & Hobbiger, 1959). Initially, it was believed that GABA could not cross the blood-brain barrier, but recent studies suggest the possibility of penetration or that dietary GABA might influence the enteric nervous system, thereby boosting the body's natural GABA production.


How GABA Tea Affects the Brain and Body

Consuming GABA tea can have profound effects on the body, including enhancing mental focus, reducing stress, and improving sleep quality. These benefits make it a sought-after beverage for those looking to maintain a balanced and healthy lifestyle.

The stress-reducing impact of GABA is attributed to its action on both peripheral levels, where it influences the autonomic nervous system's ganglia, and central nervous system processes.

GABA's effectiveness in lowering stress is also partly due to its ability to traverse the blood-brain barrier and influence neurons in specific brain regions, including the amygdala, the paraventricular nucleus of the hypothalamus, and monoamine brainstem nuclei. In these areas, GABA plays a crucial role in inhibiting sympathetic nerve activity. The discovery of a GABA transporter in the brain supports the notion that GABA can indeed cross the blood-brain barrier, suggesting that the central effects of GABA supplementation are probable.


The Art of Producing GABA Tea

The Traditional Methods of GABA Tea Production

The production of GABA tea involves a specialized anaerobic fermentation process. Tea leaves are exposed to nitrogen instead of oxygen, which significantly increases their GABA content. This method was developed in Japan in the 1980s and has since been adopted by tea producers worldwide.

While traditional methods remain popular, modern techniques have also emerged, allowing for greater control over the fermentation process and resulting in teas with higher GABA concentrations. These innovations ensure that the tea not only offers health benefits but also retains a rich and satisfying flavor.


Gaba Tea Health Benefits

GABA tea is a unique type of tea that has been gaining attention for its potential health benefits, thanks to its high levels of GABA, a neurotransmitter that plays a key role in regulating mood and relaxation in the brain. According to a study published in the "Journal of Clinical Biochemistry and Nutrition," GABA tea consumption was associated with reduced stress levels in participants, suggesting that it may serve as a natural way to manage stress and anxiety (Okada et al., 2009). This research supports the idea that GABA tea can be beneficial for mental well-being, promoting a sense of calm and improving overall mood.

Beyond its stress-reducing properties, GABA tea has also been linked to cardiovascular benefits. A research article in the "American Journal of Clinical Nutrition" highlighted that GABA tea could help lower blood pressure in individuals with mild hypertension (Hsu et al., 2009). The study indicates that regular consumption of GABA tea may contribute to cardiovascular health by aiding in the management of blood pressure levels. This is particularly important given the widespread issue of hypertension and its associated risks for heart disease.

Moreover, GABA tea's health benefits extend to enhancing sleep quality. Research published in the "Asia Pacific Journal of Clinical Nutrition" found that participants who drank GABA tea before bedtime experienced improvements in sleep quality, including reduced time to fall asleep and increased sleep duration (Juneja et al., 1999). 

Further research in the "American Journal of Clinical Nutrition" suggests that GABA tea may also improve sleep by reducing the time it takes to fall asleep, known as sleep latency. The study observed that participants who consumed GABA tea reported not only quicker onset of sleep but also improved sleep duration compared to those who did not consume the tea. This is particularly significant for individuals suffering from insomnia or those who struggle with maintaining consistent sleep patterns. By naturally enhancing the body's GABA levels, this tea offers a promising alternative to pharmaceutical sleep aids, which often come with a host of side effects.

In addition to these benefits, GABA tea has been studied for its role in improving the overall quality of sleep. Research published in "Sleep Medicine Reviews" outlines that consistent consumption of GABA tea contributes to increased REM sleep, the sleep stage associated with dreaming and memory consolidation. This improvement in sleep architecture can lead to more restorative sleep, aiding in better cognitive function and mood regulation upon waking. Given these findings, GABA tea emerges not only as a beneficial supplement for those facing sleep challenges but also as a potential enhancer of overall mental health and well-being

These studies collectively highlight the promising health benefits of GABA tea, from reducing stress and anxiety to improving cardiovascular health and enhancing sleep quality. While more research is needed to fully understand the extent of GABA tea's health impacts, current evidence positions it as a beneficial addition to a healthy lifestyle.

The growing interest in GABA tea can be attributed to its health benefits, unique flavor profiles, and the increasing desire for natural remedies to combat stress and anxiety. As more people seek ways to incorporate wellness into their daily routines, GABA tea stands out as a natural and enjoyable option.



Exploring GABA Tea Varieties from offers an exquisite collection of GABA teas, each with its unique flavor profile and health benefits. 

GABA SHU CHA - Nutty-and-Woody Shu Puer

Gaba Shu Cha is an experimental Shu puer manufactured in Dali County (altitude is more than 2500 meters) by the special order of the Moychay company with the participation of experts from Kunming University from the raw material of the spring harvest of 2020.


Mi Huan Gaba oolong - Honey Gaba from Taiwan


This Gaba Oolong from the Daoshi tea farm is a great choice for evening relaxation. It warms and soothes, relieves fatigue and refreshes perception.


Thai Gaba - warm and fruity oolong from Thailand


Black GABA Tea from is rich and full-bodied, with a distinctively smooth finish. It's an ideal choice for those who appreciate the robust flavors of black tea but are looking for the added health benefits of GABA.


Alishan Gaba SHQ - Taiwanese Gaba oolong with chocolate and coffee notes 

"Alishan Gaba Oolong SHQ" was made at the territory of the Alishan natural reserve in central, alpine Taiwan. During the treatment, tea leaves passed through multistage vacuum fermentation and long heating on charcoal.



Gaba Assam Hong Cha - Thai Red Gaba with woody, biscuit and berry notes. 

“Gaba Assam Hong Cha” is a red tea processed with anaerobic fermentation technology from Doi Mai Salong Village, Changrai District (altitude 1000m). Assamica shoots were used as raw materials.


Tea Forest Project Wild Assamica tea - limited edition of RED GABA batch from November 2022 made in Thailand

The bouquet of brewed tea is bright, fruity-floral, with notes of autumn leaves, fresh berries, spicy herbs, sparkling wines and meadow honey. The aroma is warm, delicate, fruity-floral. Tea Forest Project Wild Assamica Gaba RED is an excellent tea with rich, multifaceted taste and deep meditative effect.


Embracing the GABA Tea Collection

Discover our GABA tea to find your flavorful escape and weave it into your holistic lifestyle.

Written by Anna Leona