Oolong tea leaves come from a plant called Camellia sinensis , which has chemical compounds that were observed to reduce risk of a particular type of skin cancer 1. Researchers also found it reduced urinary tract symptoms 2. A small study published in the Journal of Medical Investigation showed that oolong tea improved metabolism and may help you lose weight.
It found that people who drank oolong tea had a higher REE and EE than both plain water and green tea. This study suggests that if you are working on improving your fitness and losing weight, regular oolong tea consumption may help.
Though oolong tea contains caffeine, the study found that properties of oolong tea, rather than caffeine, promotes fat oxidation, or weight loss. For this reason, oolong tea is a good option for people with cardiac problems, nursing mothers, or other people who cannot have large amounts of caffeine 3. Researchers have found a relationship between drinking oolong tea and lowering cholesterol levels: They found that people who drank at least 8 ounces of oolong tea daily had lower risk of high total cholesterol, triglyceride, LDL cholesterol levels.
The research consisted of 76, individuals who consumed oolong tea daily for several years 4. Researchers also found that drinking oolong tea may prevent cardiovascular problems in people with type 2 diabetes 5. Experts attribute these health benefits to the presence of polyphenols and catechins in tea 6. In a separate study, researchers found that people who drink oolong tea daily also have a lower risk of heart disease in the long term 7.
However, there are a number of small studies that suggest that oolong tea may inhibit skin, lung, and ovarian cancer 8.
Laboratory and animal studies found polyphenol chemicals, which are naturally occurring in oolong teas, may protect cells from DNA damage and possibly inhibit tumor cell growth. Tea polyphenols may also improve the immune system 9. While the early research in the efficacy of tea polyphenols is promising, researchers do not yet understand how or why it is effective, and are not recommending tea consumption in cancer treatment at this time Researchers have found that drinking oolong tea did not improve blood sugar levels or insulin levels.
However, drinking oolong tea may lower the risk of Type 2 diabetes and prevent diabetes symptoms. However, a separate study found that consumption of caffeine, which is found in oolong tea, also lowered glucose levels in patients with Type 2 diabetes. The researchers concluded that a larger study with a bigger sampling of participants should be conducted Fluoride, a compound added to tap water in most developed countries, is a naturally occurring compound in oolong tea leaves.
Fluoride helps prevent demineralization of teeth enamel and tooth decay by replenishing the lost calcium and phosphorus to keep your teeth hard. Oolong tea may help in improving the balance of healthy bacteria and provide support, especially when eating high-fat diet [13].
Fujian Oolong tea. Studies showed that polyphenols in oolong tea might inhibit breast cancer cells growth [14]. All real teas may be beneficial for heart healt. Sturies showed that oolong may help in decreasing vascular inflammation caused by diet high red meat, [17] therefore, reducing the risk of cardiovascular diseases. Scientists say this is because of EGCg and its ability to fight free radicals [18]. Consuming oolong tea on a regular daily basis may impact cholesterol levels.
One clinical trial showed that drinking ml of oolong tea per day decreases LDL or bad cholesterol by 6. In another trial, people who drank ml of oolong tea per day had reduced levels of both LDL and hemoglobin A1c, linked to the risk of developing type 2 diabetes. Orange Blossom Oolong tea. Although this might not be something you often think about when it comes to benefits, bone mineral density is very important in prevention of osteoporosis and fractures. Polyphenols in tea may help to increase bone mass and bone strength.
Drinking oolong tea before and after a meal might help in keeping your teeth clean and healthy. Same as all other real teas, oolong tea also contains caffeine. However, another study examining 37 commercially available tea samples showed that oolong can have even double the amount of caffeine of Earl Grey or Assam and Breakfast teas [22].
Teas with more caffeine had more L-theanine too, an amino acid responsible for a calming effect. Increased alertness but no jitters. When consumed together at meals, eating foods rich in vitamin C can increase the amount of iron absorbed from plant foods. Tea is a healthy beverage that has been consumed by people around the world for centuries. Oolong tea is a lesser known variety that may also provide health benefits.
However, from some of the research reviewed above, drinking green tea may offer the most health advantages. Bottled tea contains smaller amounts of beneficial polyphenols and may have excessive amounts of added sugar.
If buying bottled teas, it may be better to look for ones that are unsweetened or to brew tea at home and sweeten it with a small amount of honey. Oolong tea should be steeped for as long as possible to increase flavonoids, and people can consume cups per day. If you would like to try oolong tea, you can purchase it online. Green tea may benefit the heart, aid weight management, and soothe the skin. Learn more about the potential benefits and risks here. Glaucoma, an eye condition that can lead to blindness, affects a significant number of older adults.
Could a household beverage help to shield us from…. Do you enjoy tea for its flavor or the soothing feeling brought by holding a steaming cup? In this Spotlight, we tell you which brews are best for…. Researchers reveal how a compound in green tea called EGCG prevents the formation of toxic beta-amyloid plaques, which are a hallmark of Alzheimer's.
It is normally green tea that is hailed for its weight loss benefits, but a new study finds that black tea could be just as effective. What are the health benefits of oolong tea? Medically reviewed by Debra Rose Wilson, Ph. What is oolong tea? Health benefits Risks Takeaway We include products we think are useful for our readers. Share on Pinterest Oolong tea has a range of health benefits.
Health benefits. Share on Pinterest Oolong has been shown to have protective effects on the heart. We can git up for that. Oolong tea contains epigallocatechin gallate EGCG , according to a research review. EGCG is one of the superstar components of green tea that gives it many of its benefits — like helping to prevent memory loss and cognitive declines. So, sip early and sip often for brain health! Oolong tea, like green tea, may help improve blood sugar control, according to a research review and meta-analysis.
Some studies have found a link between oolong tea and lower fasting blood sugar levels. Why does that matter? Well, better blood sugar control can help reduce your risk of type 2 diabetes , unwanted weight gain, and heart disease. Sipping on oolong tea can provide the same fat burning boost as caffeine — without interfering with your sleep.
In fact, according to one small study , oolong may be a bit more powerful than caffeine in helping you feel the burn. In addition, an animal study found that oolong tea could improve fatty liver, reduce the size of fat cells, and decrease body weight and fat accumulation in rats with obesity. No bones about it, drinking oolong may even be good for your spooky skelly. One study found that women who drank 1 to 5 cups of oolong tea daily had much higher bone density than non-tea drinkers.
Oolong tea is full of compounds like catechins and antioxidants that might play a small role in cancer prevention, according to a research review. On that same note, one study found that oolong tea extracts can kill cancer cells.
But it would help if you take study with a grain of salt. Feeling frazzled?
0コメント