Allergy and acute adverse reaction
Double blind placebo testing has shown a percentage of people exhibit allergic reaction to Fluoride and it is possible that some Tea drinkers are unaware of the possible reactions, including heart arrhythmia, urticaria, exfoliative dermatitis, stomatitis, gastro-intestinal and respiratory allergy [Shea 1967]. Fluoride causes headache and migraine in some people so it is not surprising these ailments are experienced by some Tea drinkers [Seferoğlu 2012].
Green Tea affects the Thyroid and its hormones and can induce goiter [Schuld 1999, Sakamoto 2001, Chandra 2010, Abulfadle 2015].
Effects of Kombucha on mammal behaviour, as well as the organs, of test animals have been studied [Hartmann 2000].
Catastrophic Liver Damage
Fluoride is a liver toxin in the adult mammal [Schmidt 2005, Galati 2006, Radha Krishna 2011, Kumar 2013, Patel 2013, Thangapandiyan 2013, Waugh 2015, Campos-Pereira 2017] and is also a developmental Hepatotoxin, causing DNA damage and apoptosis in human embryo hepatocytes [Wang 2004].
Green Tea and weight loss supplements using it are known to have caused catastrophic liver injury in humans, in some cases requiring liver transplantation [Gloro 2005, Bonkovsky 2006, Jimenez-Saenz 2007, Molinari 2006, Mazzanti 2009, Chen 2010, Stickel 2011, Lugg 2015]. The weight-loss herbal supplement Exolise (Arkophama, Carros, France), which also contained Camellia sinensis, was withdrawn from the market because it was linked to multiple cases of liver injury. The effects of Green Tea or its extracts on the liver include ductal metaplasia, inflammatory infiltrates, cholestasis, steatosis, and necrosis.
Altered Metabolism and Growth Inhibition
Green tea consumption decreases body mass, induces aromatase expression, and changes proliferation and apoptosis in adult male rat adipose tissue [Monteiro 2008]. Green Tea reduces Iron and Thiamine absorption [Grove 2015, Sachdev 2017]. These deleterious effects on food utilization might have been the basis of attempts to induce weight loss using Green Tea or its extracts [Sayana 2008].
Kidney Stones
Fluoride is a nephrotoxin [Pain 2017c]. Urolithiasis kills thousands of people every year and many of the urinary stones contain significant Fluoride [Herman 1958] with correlation found between drinking water, serum and urine Fluoride levels and Fluoride content of the stones [Rathee 2004].
Kidney stones have been shown to contain up to 41,500 ppm Fluoride [Jolly 1980].
Birth Defects
Green Tea drinking has been associated with teratogenic effects including anencephaly, heart damage and spina bifida [Fedrick 1974, Correa 2000, Zielinsky 2007; 2012; 2013].
Chemical Castration
Fluoride is known to be a chemical castration agent that probably works via multiple attacks on the male reproductive system through hormone disruption [Figueiroa 2009], direct destruction of the testes, damage to the epididymis [Sun 2017] and disruption of surviving sperm mitochondrial energy production.
There have been proposals to use Green Tea to deliberately reduce human population growth.