Oolong Tea Guide: 50 Common Questions & Answers

Delving into the world of Oolong Tea unveils a rich tapestry of flavors, aromas, and centuries-old traditions. With a unique place in the spectrum of teas, Oolong has garnered attention for its remarkable taste profile and potential health benefits. In this article, we aim to provide clarity and insights by answering 50 common questions about Oolong tea, helping you discover the many facets of this beloved beverage. Whether you’re a seasoned tea enthusiast or a newcomer to the world of Oolong, these answers will illuminate the nuances of this remarkable tea variety.

Oolong Tea: 50 Questions & Answers

What is Oolong?

Oolong is a type of tea that falls between green tea and black tea in terms of oxidation. It’s known for its unique flavor profile, which can range from floral and fruity to woody and nutty, depending on the specific variety and processing methods used. Oolong tea originates from China but is now produced in various regions, including Taiwan.

What is the scientific name of Oolong?

The scientific name of the tea plant from which Oolong tea is derived is Camellia sinensis. Oolong, like all true teas, comes from the leaves of this Camellia sinensis plant.

Does Oolong have other common names?

Oolong is primarily known as Oolong tea. However, in different regions and languages, it may be referred to by variations of this name, such as Wulong tea in Chinese, which translates to “Black Dragon” tea due to its dark, twisted leaves.

What is Oolong’s traditional and modern medicinal use?

Traditionally, Oolong tea has been used in traditional Chinese medicine for its potential health benefits. It’s believed to aid in digestion, promote weight management, and provide a source of antioxidants. Modern research supports some of these claims, suggesting that Oolong tea may help regulate blood sugar, boost metabolism, and offer protection against certain chronic diseases like heart disease and stroke. It is also enjoyed for its calming and refreshing properties.

What nutrients (vitamins, minerals, antioxidants, etc.) does Oolong contain?

Oolong tea is a rich source of antioxidants, particularly catechins like epigallocatechin gallate (EGCG), which are known for their potential health benefits. It also contains vitamins and minerals such as vitamin C, potassium, and magnesium. Oolong’s caffeine content varies depending on the type, but it generally contains less caffeine than black tea but more than green tea. This combination of compounds makes Oolong tea a healthy beverage choice that can contribute to overall well-being and offer potential antioxidant protection.

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Are there any potential side effects associated with Oolong?

Oolong tea, when consumed in moderation, is generally considered safe for most people. However, like any caffeinated beverage, excessive consumption can lead to side effects such as insomnia, increased heart rate, and digestive discomfort. Some individuals may also be sensitive to the caffeine content in Oolong tea and experience jitteriness or anxiety. It’s advisable to monitor your body’s response and adjust your intake accordingly. If you have a history of caffeine sensitivity or any medical conditions, consult with a healthcare professional before incorporating Oolong tea into your routine.

There is no specific recommended dosage for Oolong tea because it largely depends on individual preferences and tolerance to caffeine. Typically, a cup of Oolong tea contains around 30-50 milligrams of caffeine, which is significantly lower than coffee. Most people can enjoy 2-3 cups of Oolong tea per day without adverse effects. However, it’s essential to listen to your body. If you’re sensitive to caffeine, you may want to limit your consumption to one cup daily or choose decaffeinated Oolong tea.

Is Oolong safe for pregnant or breastfeeding women?

Pregnant and breastfeeding women should consume Oolong tea in moderation. While moderate caffeine intake during pregnancy is generally considered safe, excessive caffeine can lead to complications. It’s advisable to limit caffeine intake to around 200-300 milligrams per day during pregnancy, which equates to roughly 2-3 cups of Oolong tea. However, it’s essential to consult with a healthcare provider to determine the best approach based on individual circumstances.

Can children safely consume Oolong?

Oolong tea is not recommended for young children, primarily due to its caffeine content. Caffeine can have more pronounced effects on children, including increased heart rate and potential sleep disturbances. It’s better to opt for caffeine-free herbal teas or other suitable beverages for children. Always consult with a pediatrician or healthcare professional before introducing any new beverage into a child’s diet.

How should Oolong be prepared or consumed (e.g., tea, tincture, capsules, tablets)?

Oolong tea is most commonly consumed as a beverage. To prepare Oolong tea, start by boiling water and letting it cool slightly to about 180-200°F (82-93°C). Place Oolong tea leaves (usually 1-2 teaspoons per cup) in a teapot or infuser. Pour the hot water over the leaves and steep for 3-5 minutes, adjusting the steeping time to your taste preference. Strain the leaves before drinking. Oolong tea can be enjoyed plain or with a touch of honey or lemon.

While Oolong tea is primarily consumed as a beverage, it is not typically available in tinctures, capsules, or tablets. These other forms of Oolong are less common, and their availability may vary depending on the manufacturer. If considering alternative forms of Oolong, it’s advisable to follow the recommended dosage provided on the product label and consult with a healthcare professional if you have any concerns.

Are there any contraindications or health conditions that Oolong may worsen?

Oolong tea is generally considered safe for most people when consumed in moderation. However, there are a few contraindications and health conditions to be aware of. Oolong tea contains caffeine, so if you have a sensitivity to caffeine or certain heart conditions, it’s advisable to limit your intake. Additionally, Oolong tea can interfere with the absorption of iron, so individuals with iron-deficiency anemia should be cautious and consult a healthcare professional for guidance.

Where is Oolong usually sourced or cultivated?

Oolong tea primarily hails from China and Taiwan. These regions have ideal climates and conditions for Oolong cultivation. In China, Fujian province is renowned for producing high-quality Oolong teas, while Taiwan, especially in regions like Nantou and Alishan, is celebrated for its unique Oolong varieties.

Oolong tea is legal to possess and use in the United States, as well as in most countries around the world. It is a widely consumed beverage and is readily available in tea shops, supermarkets, and online stores. There are no restrictions on its sale or consumption for personal use.

Are there any known allergens in Oolong?

Allergies to Oolong tea are relatively rare. However, some individuals may be sensitive to certain components present in tea leaves, such as catechins or proteins. If you suspect an allergy or experience symptoms like itching, swelling, or difficulty breathing after consuming Oolong tea, it’s advisable to discontinue use and consult with an allergist for proper evaluation.

May Oolong supplements contain contaminants like pesticides or heavy metals?

Oolong tea itself is not likely to contain contaminants like pesticides or heavy metals if it’s sourced from reputable producers. However, the quality and safety of Oolong supplements may vary. To ensure you’re getting a safe product, opt for trusted brands and check for third-party testing and certification, which can confirm the absence of harmful contaminants in Oolong supplements.

Are there any known long-term effects of using Oolong?

Oolong tea is generally considered safe for long-term consumption when consumed in moderation. It contains various antioxidants and polyphenols that can offer health benefits, such as improved metabolism and heart health. However, excessive consumption may lead to caffeine-related side effects like insomnia, nervousness, or upset stomach. It’s advisable to monitor your caffeine intake from Oolong and maintain a balanced diet.

Do Oolong supplements have a specific shelf life or expiration date?

Oolong supplements, like any other dietary products, have a shelf life and expiration date. Typically, these dates are printed on the packaging. Proper storage in a cool, dry place away from direct sunlight can help extend the shelf life. Consuming supplements past their expiration date may reduce their effectiveness, so it’s essential to check labels and replace them as needed.

What is the best time of day to take Oolong?

The best time to consume Oolong tea or supplements largely depends on your personal preference and lifestyle. Many people enjoy Oolong tea in the morning for its mild caffeine boost, which can provide a gentle energy lift. Others prefer it in the afternoon as a healthy alternative to high-calorie snacks. Ultimately, there is no one-size-fits-all answer, so you can enjoy Oolong whenever it suits your routine.

Should Oolong pills be taken with food or on an empty stomach?

Taking Oolong pills with or without food can vary depending on individual tolerance. Some people may experience mild stomach discomfort when consuming Oolong supplements on an empty stomach due to the caffeine content. To minimize potential discomfort, taking them with a meal or a light snack is recommended. However, if your stomach handles Oolong well on an empty stomach, it’s acceptable to take them that way.

Are there any dietary restrictions or guidelines while using Oolong?

There are no specific dietary restrictions associated with Oolong consumption. However, for optimal health benefits, it’s essential to maintain a balanced diet rich in fruits, vegetables, and whole grains. Additionally, if you have any pre-existing medical conditions or are taking medications, it’s advisable to consult with a healthcare professional before adding Oolong to your diet to ensure it won’t interact adversely with your current treatment or condition.

The recommended duration of use for Oolong tea or supplements can vary depending on individual preferences and health goals. Generally, Oolong is considered safe for long-term consumption when used in moderation. It’s advisable to incorporate it into your daily routine if you enjoy its taste and potential health benefits.

Is it advisable to consult a healthcare professional before using Oolong?

Consulting a healthcare professional before using Oolong tea or supplements is a wise step, especially if you have any underlying medical conditions or are taking medications. They can provide personalized guidance based on your specific health situation and help you determine the appropriate dosage and duration of use.

Are there any special precautions for storing Oolong supplements?

Storing Oolong supplements properly is essential to maintain their freshness and potency. To do so, store them in a cool, dry place, away from direct sunlight and moisture. Seal the container tightly to prevent exposure to air, which can lead to degradation of the product over time.

How does Oolong taste, and can it be mixed with other herbs or foods for palatability?

Oolong tea, a partially fermented tea known for its potential health benefits, can be complemented by various supplements to support specific health goals. Here are some supplements that can work well with Oolong tea:

  • Ginseng: Combining Oolong tea with Ginseng can boost overall energy and vitality. Ginseng is an adaptogen that complements Oolong’s natural caffeine content, enhancing alertness and stamina.
  • Vitamin C: Oolong tea contains antioxidants, and combining it with a vitamin C supplement can enhance the absorption of these antioxidants. This combination can support the immune system and provide stronger antioxidant protection.
  • Green Tea Extract: Oolong and Green Tea share some similarities, and combining the two can provide a broader range of antioxidants, including catechins. This combination may support weight management and overall well-being.
  • L-Theanine: Found in tea leaves, L-Theanine can enhance the calming effects of Oolong tea without causing drowsiness. Together, they promote relaxation and mental clarity.
  • Fish Oil (Omega-3 Fatty Acids): Oolong tea and omega-3 supplements can work together to support heart health. The combination can help manage cholesterol levels and promote cardiovascular well-being.
  • Probiotics: Pairing Oolong tea with a probiotic supplement can support digestive health. Oolong tea can promote a healthy gut environment, while probiotics contribute to a balanced gut microbiome.
  • Garcinia Cambogia: If you’re interested in weight management, Oolong tea, and Garcinia Cambogia supplements may work well together. Oolong’s potential metabolism-boosting effects combined with Garcinia Cambogia’s appetite control properties could be beneficial.

What other supplements work well together with Oolong?

Combining Oolong with other herbs or supplements can offer synergistic benefits, enhancing its potential health effects. For instance, combining Oolong with herbs like ginseng or peppermint can create a harmonious blend that may support energy and digestion. However, it’s essential to research potential interactions and consult with a healthcare professional before combining multiple supplements to ensure they are safe and effective for your specific needs.

Is there any scientific research or clinical evidence supporting Oolong’s effectiveness?

Yes, scientific research and clinical evidence support Oolong tea’s effectiveness. Numerous studies have investigated its potential health benefits. Oolong contains polyphenols, particularly catechins, and theaflavins, which possess antioxidant properties. These compounds have been linked to various health advantages, such as improved metabolism, weight management, and cardiovascular health. However, it’s important to note that individual responses may vary.

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Are there any age restrictions for using Oolong (e.g., suitable for the elderly)?

There are generally no specific age restrictions for consuming Oolong tea. It is considered safe for individuals of all ages, including the elderly. Oolong’s potential health benefits, such as aiding digestion and providing antioxidants, can be particularly beneficial for older adults. However, it’s advisable for individuals with specific medical conditions or those taking medications to consult with a healthcare professional before incorporating Oolong into their diet.

Does Oolong require a specific preparation method, such as decoction or infusion?

Oolong tea does not require a specific preparation method like decoction or infusion, as with some herbal remedies. The most common method is steeping Oolong tea leaves in hot water. The ideal temperature for steeping Oolong typically ranges between 185°F to 205°F (85°C to 96°C), and steeping times can vary depending on personal preference, but usually fall within 3-5 minutes. Experimenting with steeping times can help achieve the desired flavor profile.

Can Oolong be used topically (externally) in addition to internal consumption?

While Oolong is primarily consumed as a beverage, it is not typically used topically (externally). Its benefits are predominantly associated with internal consumption. However, some people have used brewed Oolong tea bags as a compress for minor skin irritations, thanks to its potential antioxidant and anti-inflammatory properties. If considering topical use, it’s advisable to perform a patch test first to ensure there are no adverse reactions.

Are there any known symptoms of overdose or excessive use of Oolong?

There are no known symptoms of overdose associated with Oolong tea, as it is generally safe for moderate consumption. However, excessive intake of any caffeinated beverage, including Oolong, can lead to side effects like jitteriness, insomnia, upset stomach, and rapid heartbeat. It’s recommended to consume Oolong tea in moderation and be mindful of individual caffeine sensitivity. If you experience adverse effects, reducing your intake or opting for a caffeine-free variety may be necessary.

What is Oolong’s mode of action within the body?

Oolong tea, like other teas, primarily exerts its effects through the compounds it contains. It’s rich in antioxidants called polyphenols, which help combat oxidative stress in the body. These polyphenols, such as catechins and theaflavins, have been associated with various health benefits, including improved heart health, enhanced metabolism, and potential cancer-fighting properties. Additionally, Oolong tea contains caffeine, which can provide a mild stimulant effect, boosting alertness and concentration.

Are there any known synergistic effects when Oolong is combined with specific nutrients?

While Oolong tea offers several health benefits on its own, there can be synergistic effects when it’s combined with specific nutrients. For example, some studies suggest that consuming Oolong tea alongside vitamin C-rich foods may enhance the absorption of tea polyphenols due to the vitamin’s antioxidant properties. Similarly, pairing Oolong tea with calcium-rich foods might contribute to better bone health, as the tea’s natural compounds can aid in calcium retention.

Does Oolong have a distinct aroma or essential oil that may have therapeutic benefits?

Oolong tea indeed possesses a distinct aroma and essential oils that may offer therapeutic benefits. Its aroma is often described as floral and fruity, contributing to a pleasant sensory experience. Some believe that inhaling the aroma of Oolong tea can have calming and stress-reducing effects, promoting relaxation. Additionally, the essential oils in Oolong may have potential anti-inflammatory and antimicrobial properties, though further research is needed to confirm these benefits.

Are there any cultural or historical uses of Oolong that should be considered?

Oolong tea has a rich cultural and historical significance, particularly in Chinese tradition. It has been enjoyed for centuries and holds a revered place in Chinese tea culture. Oolong is often associated with rituals, elaborate tea ceremonies, and a deep appreciation for the tea-making process. It’s also considered a symbol of hospitality and is commonly offered to guests as a gesture of warmth and respect.

Does Oolong have any spiritual or ceremonial significance in certain traditions?

In certain traditions, Oolong tea does indeed hold spiritual and ceremonial significance. For example, in some Chinese and Taiwanese cultures, Oolong tea is an integral part of religious ceremonies and rituals. It is used as an offering to ancestors or deities, symbolizing purity and reverence. Additionally, in some Buddhist practices, Oolong tea is used as a tool for meditation, with its preparation and consumption becoming a mindful and spiritually enriching experience.

Are there any variations in Oolong’s potency based on its geographic origin?

Yes, there can be variations in Oolong tea’s potency based on its geographic origin. The flavor, aroma, and chemical composition of Oolong tea can vary significantly depending on where it is grown. Factors such as soil quality, climate, and altitude play a role in shaping the unique characteristics of Oolong tea from different regions.

Does Oolong have a known effect on specific organs or body systems?

Oolong tea is generally considered to have a mild impact on various organs and body systems. It contains antioxidants, particularly catechins, which may promote overall health. Some studies suggest that Oolong tea may support cardiovascular health, aid in weight management, and improve mental alertness. However, its effects are not typically attributed to targeting specific organs or body systems.

Are there any known interactions of Oolong with commonly prescribed medications?

While Oolong tea is considered safe for most people when consumed in moderation, it’s essential to be aware of potential interactions with medications. Oolong tea contains caffeine, which can interact with certain drugs. If you are taking medications like blood thinners or stimulants, it’s advisable to consult with a healthcare professional to assess potential interactions.

What are the potential benefits and risks of long-term or chronic use of Oolong?

The long-term or chronic use of Oolong tea can have both benefits and risks. On the positive side, Oolong tea’s antioxidants may contribute to better overall health by reducing oxidative stress and supporting the immune system. However, excessive consumption of Oolong tea, especially if it’s heavily caffeinated, can lead to issues like insomnia, anxiety, or digestive problems. Moderation is key to enjoying the benefits while minimizing risks.

Is cycling on and off Oolong advisable to prevent tolerance or dependence?

There is no specific need to cycle on and off Oolong tea to prevent tolerance or dependence. Unlike some substances, Oolong tea is not associated with addiction or withdrawal symptoms. However, if you find yourself relying heavily on caffeine from Oolong tea for energy, it’s a good idea to periodically assess your caffeine intake and consider reducing it if necessary to maintain a healthy balance.

Are there any precautions regarding driving or operating machinery while using Oolong?

When consuming Oolong tea, there are generally no specific precautions related to driving or operating machinery. Oolong tea contains caffeine but in moderate amounts (typically less than black tea or coffee). The caffeine content in Oolong tea is usually insufficient to cause significant drowsiness or impairment. However, individual sensitivities to caffeine may vary, so it’s essential to gauge your body’s response. If you’re particularly sensitive to caffeine, it’s advisable to be cautious and know your limits. If you experience any signs of drowsiness or jitteriness, it’s best to avoid driving or operating heavy machinery until these effects subside.

Oolong tea is generally safe for consumption as part of a balanced diet. It contains antioxidants and can be a healthy addition to your routine. However, it’s essential to practice moderation and consider your overall caffeine intake, especially if you’re sensitive to caffeine. Avoid excessive consumption, which may lead to insomnia, increased heart rate, or digestive discomfort.

Does Oolong have any specific recommendations for addressing common side effects?

Some people may experience side effects from Oolong tea, such as digestive issues or caffeine-related symptoms like restlessness or increased heart rate. To address these, consider reducing your tea consumption or opting for a lower-caffeine variety. Additionally, drinking Oolong tea with food can help mitigate potential digestive discomfort. If side effects persist or worsen, consult a healthcare professional.

Are there any known variations or subspecies of Oolong with different properties?

Yes, Oolong tea comes in various varieties, each with unique properties and flavors. These variations are often influenced by factors like the region of cultivation, processing methods, and oxidation levels. Some Oolong teas are lightly oxidized, resulting in a more delicate and floral flavor profile, while others are heavily oxidized, leading to a richer, earthier taste. Wu Long, Tie Guan Yin, and Da Hong Pao are among the popular Oolong varieties, each offering a distinct tea-drinking experience.

Does Oolong have any documented cases of misuse or abuse?

Oolong tea is generally regarded as safe and doesn’t have a history of misuse or abuse. It’s a beverage enjoyed by many for its taste and potential health benefits when consumed in moderation. However, like any caffeinated product, excessive consumption can lead to adverse effects, such as insomnia or nervousness. To avoid such issues, it’s advisable to consume Oolong tea responsibly and be mindful of your caffeine intake, especially if you have caffeine sensitivity or underlying health conditions.

Is Oolong regulated or approved for medicinal use in the United States?

Oolong tea is not regulated or approved as a medicinal product by the United States Food and Drug Administration (FDA). It is primarily consumed as a beverage rather than a medicine. However, it is important to note that Oolong tea, like other herbal teas, may have potential health benefits, and its consumption is generally considered safe when consumed in moderation.

Are there any known interactions of Oolong when combined with other medicinal herbs?

Oolong tea is generally considered safe when consumed in moderation and is not known to have significant interactions with other medicinal herbs. However, it’s always advisable to consult with a healthcare professional if you plan to combine Oolong tea with other herbs or medications, especially if you have specific health concerns or are taking prescription medications. Some individuals may be more sensitive to certain herbal combinations, so personalized advice can be valuable.

How does Oolong’s preparation or dosage change for acute versus chronic conditions?

The preparation and dosage of Oolong tea typically do not vary significantly based on whether it’s being consumed for acute or chronic conditions. It is generally brewed by steeping Oolong tea leaves in hot water for a few minutes, and the dosage can vary based on personal preference and tolerance. For acute conditions, you may choose to consume it as needed, while for chronic conditions, incorporating it into your daily routine in moderation is common. Always follow the recommended brewing guidelines provided by the tea manufacturer for the best results.

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Are there any known withdrawal symptoms when discontinuing the use of Oolong?

There are no known withdrawal symptoms associated with discontinuing the consumption of Oolong tea. Oolong tea does contain caffeine, which some individuals may be sensitive to, so if you have been consuming it regularly and decide to stop, you may experience mild caffeine withdrawal symptoms such as headaches or fatigue for a short period. However, these symptoms are not specific to Oolong tea and can occur with any source of caffeine.

What are the best supplement brands of Oolong?

Oolong tea is typically available in loose-leaf or tea bag form rather than as a supplement. When purchasing Oolong tea, it’s a good idea to choose reputable tea brands that offer high-quality products. Some well-known tea brands that offer Oolong tea include Twinings, The Republic of Tea, and Harney & Sons. It’s important to read product reviews and consider your personal preferences, such as flavor and caffeine content when selecting a brand that suits your taste. Keep in mind that the quality of Oolong tea can vary, so do some research and choose a brand that you trust.

Article References & Sources

At AncientHerbsWisdom, our content relies on reputable sources, including peer-reviewed studies, to substantiate the information presented in our articles. Our primary objective is to ensure our content is thoroughly fact-checked, maintaining a commitment to accuracy, reliability, and trustworthiness.

  1. U.S. Food and Drug Administration. Spilling the beans: how much caffeine is too much?
  2. Temple JL, Bernard C, Lipshultz SE, et al. The safety of ingested caffeine: a comprehensive review. Front Psychiatry. 2017;8:80. doi:10.3389/fpsyt.2017.00080
  3. Wu, T., Xu, J., Chen, Y., Liu, R., & Zhang, M. (2018). Oolong tea polysaccharide and polyphenols prevent obesity development in Sprague–Dawley rats. Food & Nutrition Research, 62. https://doi.org/10.29219/fnr.v62.1599 
  4. Aboulwafa MM, Youssef FS, Gad HA, et al. A comprehensive insight on the health benefits and phytoconstituents of Camellia sinensis and recent approaches for its quality control. Antioxidants (Basel). 2019;8(10):455. doi:10.3390/antiox8100455
  5. Baer, D. J., Novotny, J. A., Harris, G. K., Stote, K., Clevidence, B., & Rumpler, W. V. (2010, October 20). Oolong tea does not improve glucose metabolism in non-diabetic adults. European Journal of Clinical Nutrition, 65(1), 87-93
  6. Weerawatanakorn M, Hung WL, Pan MH, et al. Chemistry and health beneficial effects of oolong tea and theasinensins. Food Science and Human Wellness. 2015;4(4):133-146. doi:10.1016/j.fshw.2015.10.002
  7. Huang, C.-C., Lee, W.-T., Tsai, S.-T., Ou, C.-Y., Lo, H.-I., Wong, T.-Y., … Chang, J. S. (2014, May 5). Tea consumption and risk of head and neck cancer. PLoS ONE, 9(5)
  8. Klepacka J, Tońska E, Rafałowski R, Czarnowska-Kujawska M, Opara B. Tea as a source of biologically active compounds in the human diet. Molecules. 2021;26(5):1487. doi:10.3390/molecules26051487
  9. Mineharu, Y., Koizumi, A., Wada, Y., Iso, H., Watanabe, Y., Date, C., . . . Tamakoshi, A. (2009, December 8). Coffee, green tea, black tea and oolong tea consumption and risk of mortality from cardiovascular disease in Japanese men and women [Abstract]. Journal of Epidemiology & Community Health, 65(3), 230-240
  10. Tang GY, Meng X, Gan RY, et al. Health functions and related molecular mechanisms of tea components: an update review. Int J Mol Sci. 2019;20(24):6196. doi:10.3390/ijms20246196
  11. Tea and cancer prevention. (2010, November 17)
  12. Wang S, Zeng T, Zhao S, et al. Multifunctional health-promoting effects of oolong tea and its products. Food Sci Hum Wellness. 2022;11(3):512-523. doi:10.1016/j.fshw.2021.12.009
  13. Higdon, J., Drake, V. J., & Delage, B. (2005, January). Tea
  14. Meng JM, Cao SY, Wei XL, et al. Effects and mechanisms of tea for the prevention and management of diabetes mellitus and diabetic complications: an updated review. Antioxidants (Basel). 2019;8(6):170. doi:10.3390/antiox8060170
  15. Yang, J., Mao, Q.-X., Xu, H.-X., Ma, X., & Zeng, C.-Y. (2014). Tea consumption and risk of type 2 diabetes mellitus: A systematic review and meta-analysis update. BMJ Open, 4(7)
  16. Zhang S, Takano J, Murayama N, et al. Subacute ingestion of caffeine and oolong tea increases fat oxidation without affecting energy expenditure and sleep architecture: A randomized, placebo-controlled, double-blinded cross-over trial. Nutrients. 2020;12(12):3671. doi:10.3390/nu12123671
  17. Lee, A. H., Su, D., Pasalich, M., & Binns, C. W. (2012, October 26). Tea consumption reduces ovarian cancer risk [Abstract]. Cancer Epidemiology, 37(1), 54-59
  18. Shi H, Liu J, Tu Y, Freter CE, Huang C. Oolong tea extract induces DNA damage and cleavage and inhibits breast cancer cell growth and tumorigenesis. Anticancer Res. 2018;38(11):6217-6223. doi:10.21873/anticanres.12976
  19. Yi, D., Tan, X., Zhao, Z., Cai, Y., Li, Y., Lin, X., . . . Zhang, Q. (2013, November 14). Reduced risk of dyslipidaemia with oolong tea consumption: A population-based study in southern China. British Journal of Nutrition, 111(8), 1421-1429
  20. Liu S, Lin Z, Huang L, et al. Oolong tea consumption and its interactions with a novel composite index on esophageal squamous cell carcinoma. BMC Complement Altern Med. 2019;19(1):358. doi:10.1186/s12906-019-2770-7
  21. Heber, D., Zhang, Y., Yang, J., Ma, J. E., Henning, S. M., & Li, Z. (2014, July 16). Green tea, black tea, and oolong tea polyphenols reduce visceral fat and inflammation in mice fed high-fat, high-sucrose obesogenic diets. Journal of Nutrition, 144(9), 1385-1393
  22. Pervin M, Unno K, Ohishi T, Tanabe H, Miyoshi N, Nakamura Y. Beneficial effects of green tea catechins on neurodegenerative diseases. Molecules. 2018;23(6):1297. doi:10.3390/molecules23061297
  23. Webb, D. (2011, January). Hot & cold – despite tea’s popularity worldwide, research on its health benefits remains inconsistent
  24. Zhang S, Duangjan C, Tencomnao T, et al. Neuroprotective effects of oolong tea extracts against glutamate-induced toxicity in cultured neuronal cells and β-amyloid-induced toxicity in Caenorhabditis elegans. Food Funct. 2020;11(9):8179-8192.
  25. He, R., Chen, L., Lin, B., Matsui, Y., Yao, X., & Kurihara, H. (2009, March 7). Beneficial effects of oolong tea consumption on diet-induced overweight and obese subjects [Abstract]. Chinese Journal of Integrative Medicine, 15(1), 34-41
  26. Liu X, Du X, Han G, Gao W. Association between tea consumption and risk of cognitive disorders: A dose-response meta-analysis of observational studies. Oncotarget. 2017;8(26):43306-43321. doi:10.18632/oncotarget.17429
  27. Fan FS. Iron deficiency anemia due to excessive green tea drinking. Clin Case Rep. 2016;4(11):1053-1056. doi:10.1002/ccr3.707
  28. Bond T, Derbyshire E. Tea compounds and the gut microbiome: findings from trials and mechanistic studies. Nutrients. 2019;11(10):2364. doi:10.3390/nu11102364
  29. Hayashino, Y., Fukuhara, S., Okamura, T., Tanaka, T., & Ueshima, H. (2011, July). High oolong tea consumption predicts future risk of diabetes among Japanese male workers: A prospective cohort study [Abstract]. Diabetic Medicine, 28(7), 805-810
  30. Sun H, Chen Y, Cheng M, Zhang X, Zheng X, Zhang Z. The modulatory effect of polyphenols from green tea, oolong tea and black tea on human intestinal microbiota in vitro. J Food Sci Technol. 2018;55(1):399-407. doi:10.1007/s13197-017-2951-7

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