Oolong tea extract 50% polyphenols
Oolong tea extract 50% polyphenols is a supplement derived from oolong tea that contains a concentrated amount of polyphenols, which are plant-based compounds with antioxidant properties. These polyphenols include theaflavins, thearubigins, and EGCG, which are responsible for many of its health benefits. Oolong tea extract can be used in supplements to support energy levels, support lipolysis and provide antioxidant activity, increase energy expenditure and fat oxidation.
Benefits:
- Blood sugar control: The polyphenol antioxidants in oolong tea may help maintain normal blood sugar levels and decrease the risk of developing type 2 diabetes.
- Weight loss: Oolong tea extract may aid in weight loss by increasing energy expenditure and fat oxidation.
- Cardiovascular health: Oolong tea extract may decrease the risk of heart disease, stroke, and high blood pressure in some people.
- Cognitive function: Oolong tea extract contains L-theanine, an amino acid shown to have positive effects on relaxation and cognitive performance.
- Bone health: Habitual tea drinkers may have increased bone mineral density.
Case studies:
- A clinical trial found that oolong tea extract increased plasma adiponectin levels and low-density lipoprotein particle size in patients with coronary artery disease.
- A study found that habitual tea drinkers had increased bone mineral density compared to non-tea drinkers.
- Several clinical trials have demonstrated that a single dose of tea (containing polyphenols) improves plasma antioxidant capacity of healthy adults within 30 to 60 minutes after consumption.
There is no established recommended dosage for oolong tea extract 50% polyphenols. The dosages used in studies vary widely. Drinking more than 4 cups of oolong tea daily may be unsafe due to the caffeine content. Drinking large amounts might cause side effects such as headaches, nervousness, sleep problems, vomiting, diarrhea, irritability, irregular heartbeat, tremor, heartburn, dizziness, ringing in the ears, convulsions, and confusion. However, oolong tea extract supplements may have lower caffeine content than brewed tea.
Sources:
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3498696/
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6512146/
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7084675/
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2855614/
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6412948/
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3220617/