Cancer prevention (specially breast, pancreatic, colon, lung and esophageal cancers)
Atherosclerosis and cardiovascular diseases
- Of 29 selected clinical studies on tea leaf that included a total of 68,242 subjects, all demonstrated positive effects for indications including cardiovascular health, cancer, osteoporosis, obesity and bowel conditions.
- According to cancer studies on green tea, protective effect of Green teadin consumption against development of pancreatic and colorectal cancer, stomach cancer, lung cancer, esophageal cancer, and various other cancers is documented.
- Green teadin has greater in vitro antioxidant capacity than most fruits and vegetables per serving and is more potent than vitamins C and E and the carotenoids. Green tea also contains higher concentration of the active constituents than black tea and is six fold more potent.
- Polyphenols in Green teadin inhibit carcinogenesis by blocking endogenous formation of nitrosamines, polycyclic aromatic hydrocarbons and heterocyclic amines.
- Green tea is helpful in the prevention and treatment of Clostridial diarrhea disease and in helping to promote the growth of friendly bacteria in the gut microflora.
Animal studies have demonstrated anti-inflammatory action in the treatment of colitis.
- Green tea contributes to the prevention of cardiovascular disease by increasing the antioxidant capacity of plasma and decreasing serum lipid concentration. It also reduces risk of atherosclerosis and myocardial infarction.
- Tea catechins prolong the life of norepinephrine by inhibiting catechol O-methyltransferase (COMT), the enzyme that degrades norepinephrine, while tea caffeine inhibits phosphodiesterases, which prolongs the life of cAMP in the cell, resulting in an increased effect, of norepinephrine on thermogenesis and fat oxidation which could be of value in management of obesity. One double blind, placebo controlled study showed that taking 4 capsules (500 mg each) daily causes significant average weight loss of 1.7 kg at day 15 and 2.9 kg at day 30 and significant reductions in total cholesterol and blood triglycerides but no reduction in HDL cholesterol.
Each tablet contains 500 mg Camellia sinensis leaf and extract Standardized on 50 mg total Polyphenols, 20mg dill seeds and 20mg caraway seeds.
Green teadin tablets contain: catechins including Epicatechin, Gallocatechin (GC) Epicatechin-3-gallate (ECG), Epigallocatechin (EGC) and Epigallocatechin-3-gallate (EGCG), xanthine alkaloids including theobromine, theophylline and caffeine; Flavonoids, Minerals including significant amounts of aluminum, manganese, fluoride and potassium.
ADMINISTRATION AND DOSAGE
Take 1 to 2 tablets 3 times daily with meal.
Tannins in tea can interfere with intestinal absorption of nutrients and vitamins. They can bind iron and may lead to microcytic anemia in children.
Green tea may also interact with drugs such as the blood-thinning drug such as warfarin (reducing its effects), and large amounts of caffeine may increase activity and side effects of theophylline.
The side effects of tea may include hyperacidity, gastric irritation, reduction of appetite, constipation or diarrhea which can be avoided by the addition of milk. Side effects of high doses (not reasonable amounts) are nervousness, anxiety, headaches, tremors, hypertension, restlessness, insomnia, daytime irritability and diuresis. These effects are generally for relatively high dosages and are not associated with the ingestion of reasonable amounts of tea.
CONTRAINDICATIONS & PRECAUTIONS
Individuals with weakened cardiovascular systems, renal diseases, thyroid hyperfunction, elevated susceptibility to muscle spasm, certain psychic disorders (eg. panicky states of anxiety) and susceptibility to coffeine should use tea with caution.
PREGNANCY AND LACTATION
It is not recommended during pregnancy and lactation due to the caffeine content or at least large quantities of green tea should be avoided.
Store below 30˚C and protect from moisture and light.
1.PDR for herbal medicine, 2008, 445-448.
2.Commission E monograph therapeutic guide to herbal medicine, 1998, 148-149.
3.The ABC clinical guide to herbs, 2003, 250-254.
4.Serafini M, Ghiselli A, Ferro-Luzzi. In vivo antioxidant effect of green and black tea in man. European journal of clinical nutrition. 1996. Vol.50 (1):28-32.
5.Shixian Q., VanCrey B., Shi J., Kakuda Y., Jiang Y. Green Tea extract thermogenesis-induced weight loss by Epigallocatechin Gallate inhibition of Catechol-O-Methyltransferase. Journal of Medicinal Food. 2006. 9(4):451-458.