From the mist-covered mountains of China’s Fujian Province to the highlands of Taiwan, Oolong tea has travelled a long way to become a global favourite. This traditional Chinese tea is a true masterpiece of craftsmanship, sitting perfectly between unoxidized green tea and fully oxidized black tea.

Because it is semi-fermented, it offers a uniquely smooth, complex flavour that has captured the hearts of tea connoisseurs everywhere.

However, Oolong is more than just a delightful sip; harvested from the legendary Camellia sinensis plant, it carries a plethora of health benefits. Whether you’re looking to support digestive health or master weight management, Oolong is a ‘gift of nature’ worth exploring.

Let’s dive into why this tea deserves a permanent spot on your table and how you can brew the perfect cup.” Let’s discuss!

What is Oolong Tea?

Oolong or ‘Wu-Long’ tea is made from the oxidized whole leaves of the Camellia sinensis plant. It is produced through six (6) main processes, namely withering, bruising, oxidizing, shaping (rolling), drying and roasting.  The tea is left to wither immediately after being harvested, which is usually done by using natural sunlight.  

This process softens the cell walls of the leaves, which results in a natural enzymatic fermentation.  In the bruising phase, the leaves are shaken together using a wicker, which induces the tea’s unique flavour.  

The bruising phase is also where the process of oxidation begins.  Bruising also helps to alleviate the tea’s bitterness due to the softening effects of the bruising. The teas are then left to further oxidize.  This phase is crucial to the outcome of the tea, which has a lot to do with its flavour profile.   Therefore, to get the required flavour, the oxidation phase may be repeated a few times over to achieve the desired outcome.

The leaves are then treated with heat to stop the oxidation process. This process is usually referred to as ‘kill-green.’ The leaves are then rolled to give them their unique shape.  The leaves may take on the shape of a long curl or a pear shape.  

After rolling, the teas are then dried and roasted to further enhance their flavour. Several benefits have been cited for the consumption of oolong tea.  These include the promotion of heart health, better digestion, weight loss, and aiding in the strengthening of the bones.

Four(4) ‘Awesome’ Health Benefits of Oolong Tea

Oolong tea is often described as the best of both worlds, offering the fresh vibrancy of green tea alongside the bold, complex profile of black tea. But its appeal goes far beyond its unique flavour.

This traditional Chinese tea is packed with antioxidants and specialized polyphenols that work behind the scenes to sharpen your mind and strengthen your body.

If you are looking for a delicious way to upgrade your daily wellness ritual, these four ‘awesome’ benefits prove exactly why Oolong tea deserves a permanent spot in your cupboard.

1. Oolong Tea and Heart Health

According to both an experimental and population-based study done in China, Oolong tea consumption could lower the risk of dyslipidaemia. Dyslipidaemia is a major systemic disorder, which is one of the key risk factors for cardiovascular diseases (CVDs) worldwide (Murray and Lopez, 1997). 

Further studies also revealed that there was a positive relationship between people who drank at least ten (10) ounces of oolong tea per week and low cholesterol. 

As such, the tea has the propensity to maintain one’s cholesterol and triglyceride levels low. High cholesterol can lead to an increased risk of heart disease.

2. Oolong Tea and Digestion

Oolong tea is widely celebrated for its ability to cultivate a thriving gut microbiome. Rich in unique polyphenols, this tea acts as a prebiotic, nourishing the good bacteria in your digestive tract and helping to curb harmful microbes.

By lowering overall inflammation within the gut lining, oolong tea supports a smoother, more efficient digestive process.

Because of these powerful anti-inflammatory properties, oolong tea may offer soothing relief to the digestive tract. However, if you regularly experience issues like acid reflux or ulcers, it is best to enjoy it in moderation.

The natural caffeine content in oolong tea can sometimes trigger the stomach to produce excess acid, which may worsen reflux or irritate an active ulcer. Opting for a lighter brew or drinking it alongside a meal can help you enjoy its gut-loving benefits comfortably.

3. Oolong Tea and Weight Management

According to Rumpler et. al. (2001), oolong tea can help to accelerate metabolism by increasing energy expenditure by an average of 281 kilojoules per day in healthy, normative-weight men. As such, regular consumption of oolong tea improves fat metabolism, which prevents fat cells from proliferating,g which can result in weight loss.  

Oolong controls body weight by blocking the absorption of fats and carbohydrates. As such, the tea can help you to burn more calories, boost metabolism, and strengthen the immune system, especially due to its antioxidant properties. Further, the polyphenols found in oolong tea have been found to promote weight loss and /or protect against obesity resulting from the consumption of a high-fat diet over a twenty (20) week period (Heber et.al. 2014).

4. Oolong Tea and Bone Health

Oolong tea is said to aid in the building of stronger bones.  Research indicates that oolong tea can increase bone mineral density by up to 2% (Wu, C.H., et. al., 2002).  This may help to reduce one’s risk of bone fractures due to the higher incidence of bone mineral density. This is especially beneficial for postmenopausal women as well as those suffering from osteoporosis. 

Osteoporosis is a common disorder where the bones become porous, brittle and subject to fracture, owing to loss of calcium and other mineral components, sometimes resulting in pain. The condition is usually age-related and is more common in older persons, especially postmenopausal women.

You can watch the video about Oolong tea via the link below:

Video: Let’s Talk Oolong Tea!

Illustrative Summary

Here is an illustrative summary of the benefits of consuming OOLONG TEA.

A little Osmanthus to enhance the flavour and benefits

Osmanthus is a flowering plant from the family of Oleaceae, which grows in small panicles.  It is caffeine-free and has a floral and fruity aroma. 

The plant has been touted to have many health benefits, which include helping to reduce oxidative stress, treating allergies, benefiting the skin and eyes, suppressing appetite, and helping the body to combat pathogens, which can lead to infections.

How to brew that “perfect” cup of Oolong Osmanthus tea

 Ingredients

• 1 oolong tea bag.
• Boiled water.

 Directions

• Add boiled water to the teabag.
• Let it steep for 2-5 minutes.
• Enjoy by adding your preferred choice of sweetener or consume it as-is.

Let’s Sum Up!

Oolong tea is one of China’s traditional and renowned teas, which can proudly share the spotlight with the likes of green, white, black and pu-erh teas.  The tea has been proven to have many health benefits, including improving heart health and digestion, building strong bones, and, of course, helping to keep those pesky fats at bay.  

However, the benefits should not be considered a ‘one-day wonder’ or one that happens in isolation.  Therefore, with proper diet and exercise, you can reap the benefits and enjoy better health and well-being over your lifetime.  

Due to its caffeine content, caution must be exercised in how much to drink by those who are allergic to caffeine.

You can also learn more about the benefits of oolong tea and teas in general in this article.  Additionally, you can also try this other nutritious tea, burdock root, here and watch a video about oolong tea here

• It’s tea time – Here are Four (4) ‘to know’ benefits of teas, including weight loss and bone health!
• Burdock Root – Another priceless gift of nature – Here are Six (6) Reasons why!
• Video – 3 Benefits of Drinking Oolong Tea Plus Noted Side Effects
• Boba Tea: Tasty Trend or Sugar Trap?

This article was last updated by a Research Consultant and Certified Nutrition Coach: November 1, 2026