1 / 6

Green Tea

Green tea, derived from the Camellia sinensis plant, is rich in flavonoids and polyphenolic compounds like catechins. Research highlights its extensive health benefits, including antioxidative properties, anti-inflammatory effects, and potential cancer prevention. Studies demonstrate green tea's role in inhibiting carcinogenesis, reducing obesity, managing cholesterol levels, and offering antiviral and antidiabetic effects. However, further human intervention studies are needed to confirm these benefits consistently, as results from existing epidemiological and clinical trials vary.

medge-cruz
Télécharger la présentation

Green Tea

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Green Tea

  2. Green tea • Camellia sinensis • rich in • flavonoids, • polyphenolic compounds e.g. catechins

  3. Green tea Animal experiment studies • antioxidative Ho et al., 1922; Serafini et al., 1996 • antiinflammatory Mutoh et al., 2000 • antimutagenic Kuroda and Hara, 1999; Steele et al., 2000 • anticarcinogenic Cao and cao, 1999; Jung and Ellis, 2001 • apoptotic Ahmal et al., 1997 • antiobesity Dulloo et al., 1999; Hen et al,1999 • hypocholesterolemic Yang and Koo, 1997 • antiatherosclerosis Yang and Koo, 2000 • antidiabetic Zeyuan et al., 1998 • antiviral Clark et al., 1999; Mukoyama et al., 1999 • antiaging Esposilo et al., 2002

  4. Anton Rietveld and Sheila Wiseman. Antioxidant Effects of Tea: Evidence from Human Clinical Trials. J. Nutr. 133: 3285S-3292S, 2003. Green tea : antioxidant effects • Tea flavonoids are potent antioxidants. • The scientific support is strongest for the protection of DNA from oxidative damage after black or green tea consumption. • However, the quality of the studies now available is insufficient to draw firm conclusions. • Therefore, further evidence from human intervention studies is required.

  5. Green tea and cancer Blot WJ, Chow WH, McLaughlin JK.Tea and cancer: a review of the epidemiological evidence. Eur J Cancer Prev. 1996 Dec;5(6):425-38. Numerous reports : inhibition of carcinogenesis in experimental animals by tea. Ecological data : considerable international variation in tea consumption but generally small differences in cancer rates. More relevant case-control and cohort studies show mixed results. Further research, is needed before definitive conclusions on tea's impact upon cancer risk can be reached.

  6. Green teaand weight reduction 1 study • green tea increased fat oxidation and thermogenesis in 10 pt • not designed to assess weight loss Am J Clin Nutr 1999; 70: 1040-5

More Related