Unilever is the world’s largest supplier of branded tea. Lipton, Glen and Joko are some of the best-known tea brands found in South Africa. Unilever has a long history of tea research which includes the effects of tea – often executed in close collaboration with external tea researchers – and our findings are published in numerous papers and peer-reviewed journals.
Tea and Flavonoids:
Flavonoids are a group of plant substances within the polyphenol family. They are not nutrients, yet they are thought to support and promote good health due to special properties shown in- vitro which enable them to reduce inflammation, inhibit cancer cells and maintain vascular function. Examples of individual flavonoids include catechins, which are found mainly in green tea, and quercetin which is found in onions.
The key dietary sources of flavonoids in Western countries are tea, onions, red wine,chocolate and fruit1. Black tea contributes 60-84% of dietary flavonoids in Western populations2,although green and white teas are more concentrated sources.The level and type of flavonoids in tea varies greatly depending on the type of tea(green, white or black), variety, growing conditions,manufacturing process, and tea preparation habits( eg. brewing time)
Many studies have linked a high intake of flavonoids with healthy living and a reduction in the risk of developing a chronic disease. The most researched areas remain cardiovascular disease and cancer 4, 5, 6, 7, 8, 9. However, there is emerging data on other areas of health such as mental function, weight control and diabetes.