Red Tea
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Red Tea Usage

Written by FoundHealth.

What Is Red Tea Used for Today?

Rooibos tea is marketed as a treatment for a wide variety of conditions, including all those mentioned above. However, no proposed uses of this herb have anymeaningful supporting scientific evidence.

Like other forms of tea, red tea contains antioxidant substances in the phenol family. 1 2 3 This alone is the basis for many of the health claims attached to it. However, innumerable substances contain antioxidants; furthermore, the theory that antioxidants provide widespread health benefits has, in recent years, largely collapsed.

Nonetheless, test tube studies , at least, hint that red tea might be helpful for preventing heart disease , 4 preventing liver injury , 5 and reducing cancer risk. 6 Other test tube studies hint that constituents of red tea might have activity against the HIV virus . 7 However, all of this evidence remains far too weak to be relied upon at all. In general, only double-blind, placebo-controlled studies can prove that a treatment is effective. Test tube studies are at the opposite end of the spectrum; they are useful as basic research, but the overwhelming majority of potential benefits seen in the test tube do not pan out in human trials. Therefore, at present, while rooibos may be a pleasant beverage tea, any medicinal claims attached to it are without scientific foundation.

References

  1. Joubert E, Winterton P, Britz TJ, Gelderblom WC. Antioxidant and pro-oxidant activities of aqueous extracts and crude polyphenolic fractions of rooibos (Aspalathus linearis). J Agric Food Chem. 53(26):10260-7.
  2. Ulicná O, Vancová O, Bozek P, Cársky J, Sebeková K, Boor P, Nakano M, Greksák M. Rooibos tea (Aspalathus linearis) partially prevents oxidative stress in streptozotocin-induced diabetic rats. Physiol Res. 55(2):157-64.
  3. Kucharská J, Ulicná O, Gvozdjáková A, Sumbalová Z, Vancová O, Bozek P, Nakano M, Greksák M. Regeneration of coenzyme Q9 redox state and inhibition of oxidative stress by Rooibos tea (Aspalathus linearis) administration in carbon tetrachloride liver damage. Physiol Res. 53(5):515-21.
  4. Persson IA, Josefsson M, Persson K et al. Tea flavanols inhibit angiotensin-converting enzyme activity and increase nitric oxide production in human endothelial cells. J Pharm Pharmacol. 2006;58:1139-44.
  5. Kucharská J, Ulicná O, Gvozdjáková A, Sumbalová Z, Vancová O, Bozek P, Nakano M, Greksák M. Regeneration of coenzyme Q9 redox state and inhibition of oxidative stress by Rooibos tea (Aspalathus linearis) administration in carbon tetrachloride liver damage. Physiol Res. 53(5):515-21.
  6. Komatsu K, Kator K, Mitsuda Y, Mine M, Okumura Y. Inhibitory effects of Rooibos tea, Aspalathus linealis, on X-ray-induced C3H10T1/2 cell transformation. Cancer Lett. 77(1):33-8.
  7. Nakano M, Nakashima H, Itoh Y. Anti-human immunodeficiency virus activity of oligosaccharides from rooibos tea (Aspalathus linearis) extracts in vitro. Leukemia. 11 Suppl 3():128-30.
 
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