Health Benefits of Rooibos Tea

  • Author: Lisa-Marie Rauschendorfer
  • Published: 21 October 2013
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
  • Source / Publisher: Molecular Nutrition & Food Research/Wiley-VCH
thumbnail image: Health Benefits of Rooibos Tea

Rooibos is a popular herbal tea made from the stems and leaves of Aspalathus linearis, which is unique to the Western Cape region of South Africa. Compared to black tea, Rooibos is free of caffeine and has only low tannin levels, but is a rich source for polyphenols and flavonoids. Humans ingest significant amounts of flavonoids in their diet.

Amanda Swart, Stellenbosch University, South Africa, and colleagues investigated the influence of flavonoids in Rooibos on the biosynthesis and inactivation of glucocorticoids. This was done by determining the glucocorticoid plasma levels in human test subjects by ultra-performance liquid chromatography and mass spectrometry. Glucocorticoids are hormones synthesized in the adrenal cortex by a set of enzymes from their common precursor cholesterol and have various important physiological functions, for example in the metabolism of glucose, as well as in stress response. Rooibos affects glucocorticoid biosynthesis by reducing its production in the adrenal cortex and/or favoring its inactivation. Therefore, Rooibos could help to maintain a normal level of glucocorticoids.

This finding indicates a potential therapeutic application for Rooibos in the management of stress-related conditions and metabolic diseases.

Article Views: 4059

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from, please contact us first for permission and consult our permission guidance prior to making your request

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH