Beloved and unhealthy black tea

by | Naturopathy

Black tea is drunk all over the world. The tea-containing drink is characterized by a slightly bitter taste. Unlike green tea, the tea leaves of black tea are fermented. Black tea appears again and again in connection with health issues.

The enigmatic class of substances called thearubigenes, which make up 60 to 70% of all the substances dissolved in black tea and give it its aroma and its typical brownish-red color, has not yet been chemically characterized in more detail, despite intensive efforts. Now, for the first time, it has been possible to use a specially adapted, high-resolution mass spectrometry method to detect up to 30,000 different compounds in the thearubigen fraction of various black teas; around 1,500 of them could be characterized by a structural formula.

Black tea contains various substances that affect the human organism. These substances occur naturally in tea or arise during production, for example through fermentation, which turns the tea leaves dark. Black tea contains the following active ingredients:

  • caffeine
  • Tannins (tannins)
  • Flavonoids
  • Theobromine
  • Theophylline
  • Phenol carboxylic acids
  • Amino acids (L-theanine), vitamins, minerals, trace elements

Tannins (tannins)
Black tea contains tannins, which inhibit iron absorption. People who suffer from iron deficiency are advised to avoid drinks that contain tannins.

Oxalate (oxalic acid)
Black tea contains between 3 and 16 mg Oxalate per cup. The oxalate that you ingest with your food can influence the formation of kidney stones (calcium oxalate stones).

Besides pesticides black tea contains the substance anthraquinone . Anthraquinone is used, among other things, to ward off birds after sowing. It has only been known since 2014 that it can occur as an impurity in teas. Anthraquinone, like most pesticides, herbicides and fungicides, is carcinogenic.

If tea then organic tea. My recommendation. Kukicha and Hojicha from the green tea tree, gently fermented without tea and slightly alkaline. You can drink Kukicha and Hojicha 365 days a year.

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author: André Blank

André is a health-mentor and author. He is the founder, owner and CEO of Vivoterra® AG.

He is convinced, that all people with healthy heart-QI – true love – are allowed to live a life in trust, peace, freedom and health – and that we have the potential to realize such a life for ourselves.

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