23 Good Reasons to Drink Green Tea - Saving Life From Disease
Green tea is becoming popular beverage worldwide because of its positive health effects. Anyone who drinks 3 to 4 cups per day his body avoids storing calories as fat.
But studies have shown that some green teas are heavily contaminated with harmful substances. Only products that are not contaminated at all are really healthy. Therefore consumers should find out exactly which teas are suitable.
In this article you will read 23 good reasons and beneficial effects of green tea:
1. Green tea protects against cancer
Green tea helps to reduce the risk of cancer through its antioxidants. The antioxidants are about 100 times stronger than vitamin C and 25 times stronger than vitamin E. (However, every antioxidant neutralizes various free radicals in different tissues, so taking vitamin C and E are recommended!)
Reference: Katiyar SK, Mukhtar H. Tea (1997):
"Antioxidants in cancer chemoprevention." J Cell Biochem Suppl 1997; 27: 59-67.
2. Green tea and weight control
Green tea can help you lose weight. It improves the burning of fat and increases the metabolic rate (basal metabolism) in a natural way. Some cups help to burn about 70 extra calories a day, which can already mean a drop of several extra pounds a year.
Reference: 2000, "Green Tea", Aging Med Rev. 2000 Aug; 5 (4): 372-5., PMID: 10956382
3. Green tea and healthy skin
Antioxidants in green tea protect the skin from free radicals, which cause wrinkles and skin aging. Skin cancer protection is also discussed.
Reference: Katiyar SK, Matsui MS, Elmets CA, Mukhtar H. (1999):
"Polyphenolic antioxidant (-) - epigallocatechin-3-gallate from green tea reduces UVB-induced inflammatory responses and infiltration of leukocytes in human skin." Photochem photobiol. 1999 Feb; 69 (2): 148-53.
4. Green tea can help lower cholesterol
Green tea helps lower cholesterol, and also improves the ratio of "good" (HDL) to "bad" (LDL) cholesterol by reducing LDL levels.
Reference: Kapoor S. (2008):
"Green tea: beneficial effects on cholesterol and lipid metabolism beyond endothelial function.", Eur J Cardiovasc Prev Rehabil. 2008 Aug; 15 (4): 497, PMID: 18677179
5. Green tea for high blood pressure
Drinking green tea helps to keep blood pressure down, as green tea suppresses the production of too much angiotensin, a substance that causes hypertension.
Reference: Antonello M, Montemurro D, Bolognesi M, Di Pascoli M, Piva A, Grego F, Sticchi D, Giuliani L, Garbisa S, Rossi GP.,
"Prevention of hypertension, cardiovascular damage and endothelial dysfunction with green tea extracts." , At J Hypertens. 2007 Dec; 20 (12): 1321-8., PMID: 18047924
6. Green tea protects the liver
Green tea boosts the success rate of a liver transplant. Researchers have also shown that green tea can neutralize the free radicals that form in a fatty liver.
Reference: Jin X, Zheng RH, Li YM (2008):
"Green tea consumption and liver disease: a systematic review.", Liver Int. 2008 May 14., PMID: 18482271
7. Green tea and stress
L-Theanine, an amino acid in green tea, has a psycho-balancing effect and can help reduce stress and anxiety.
Reference: Kimura K, Ozeki M, Juneja L, Ohira H (2007):
L-Theanine reduces psychological and physiological stress responses. Biol Psychol 74 (1): 39-45. PMID 16930802
8. Green tea and allergies
The substance EGCG in green tea helps to alleviate allergic reactions. Regular consumption of green tea is therefore recommended for allergy sufferers.
Reference: Shiozaki T, Sugiyama K, Nakazato K, Takeo T. (1997):
"Effect of tea extracts, catechin and caffeine against type I allergic reaction", Yakugaku Zasshi. 1997 Jul; 117 (7): 448-54.Japanese, PMID: 9261215
9. Green tea against HIV
Japanese scientists have found that EGCG in green tea can prevent HI virus from binding to healthy immune cells. Therefore, green tea can prevent the spread of the virus.
Reference: Chang CW, Hsu FL, Lin JY (1994):
"Inhibitory Effects of Polyphenolic Catechins from Chinese Green Tea on HIV Reverse Transcriptase Activity.", J Biomed Sci. 1994 Jun; 1 (3): 163-166., PMID: 11725021
10. Green tea protects the heart
Green tea helps prevent heart disease and strokes by favorably affecting cholesterol and fat metabolism. After a heart attack he accelerates the recovery.
Reference: Hertog M, Feskens EJ, Hollman PC, Katan MB, Kromhout D. (1993):
"Dietary Antioxidant Flavonoids and Risk of Coronary Heart Disease: the Zutphen Elderly Study.” Lancet. 1993 Oct 23; 342 (8878): 1007-11.
11. Green tea and anti-aging
Polyphenols, a special class of antioxidants, can effectively fight free radicals, thereby slowing down aging processes and promoting longevity.
Reference: Chen L, Yang X, Jiao H, Zhao B. (2003):
"Tea catechins protect against lead-induced ROS formation, mitochondrial dysfunction, and calcium dysregulation in PC12 cells.", Chem Res Toxicol. 2003 Sep; 16 (9): 1155-61.
12. Green tea and arthritis protection
Green tea can help reduce the risk of arthritis by protecting the cartilage by blocking inflammatory enzymes that can attack the cartilage.
Reference: Adcocks C, Collin P, Buttle DJ. (2002):
"Catechins from Green Tea (Camellia sinensis) inhibit bovine and human cartilage proteoglycan and type II collagen degradation in vitro.", J Nutr.2002 Mar; 132 (3): 341-6.
13. Green tea prevents osteoporosis
The fluoride content in green tea helps strengthen bones and teeth. Daily consumption can help to maintain bone density.
Reference: Whelan AM, Jurgens TM, Bowles SK. (2006):
"Natural health products in the prevention and treatment of osteoporosis: systematic review of randomized controlled trials." Ann Pharmacother. 2006 May; 40 (5): 836-49, PMID: 16670364
14. Green tea for obesity
Green tea protects against obesity by limiting the absorption of glucose into fat cells.
Reference: Hsu CH, Tsai TH, Kao YH, Hwang KC, Tseng TY, Chou P. (2008), "Effect of green tea extract on obese women: a randomized, double-blind, placebo-controlled clinical trial.", Clin Nutr.2008 Jun; 27 (3): 363-70, PMID: 18468736
15. Green tea for diabetes
Green tea helps to modulate fat and sugar metabolism, prevents a steep rise in blood sugar levels and keeps your metabolism in balance.
Reference: Ikeda I. (2008): "Multifunctional effects of green tea catechins on prevention of the metabolic syndrome.", Asia Pac J Clin Nutr. 2008; 17 Suppl 1: 273-4, PMID: 18296354
16. Green tea and Alzheimer's disease
Green tea helps to improve memory. Sure: There is no cure yet for Alzheimer's disease. But green tea counteracts the reduction of acetylcholine in the brain. Acetylcholine is believed to play a significant role in the course of the disease.
Reference: Rezai-Zadeh K, Arendash GW, Hou H, Fernandez F, Jensen M, Runfeldt M, Shytle RD, Tan J. (2008):
"Green tea epigallocatechin-3-gallate (EGCG) reduces beta-amyloid mediated cognitive impairment and modulates tau pathology in Alzheimer's transgenic mice. ", Brain Res. 2008 Jun 12; 1214: 177-87., PMID: 18457818
17. Green tea and Parkinson's disease
The antioxidants in green tea protect against cell damage in the brain, which can cause Parkinson's disease in certain brain regions. Parkinson's sufferers of tea drinkers are less likely to have symptoms that worsen.
Reference: Tan LC, Koh WP, Yuan JM, Wang R, Au WL, Tan JH, Tan EK, Yu MC. (2008):
"Differential effects of black versus green tea on the risk of Parkinson’s disease in the Singapore Chinese Health Study.", Am J Epidemiol. 2008 Mar 1; 167 (5): 553-60. PMID: 18156141
18. Green tea in food poisoning
Green tea catechin can kill bacteria that cause food poisoning and also neutralize the toxins that such bacteria produce.
Reference: Taguri T, Tanaka T, Kouno I. (2004):
"Antimicrobial activity of 10 different plants polyphenols against bacteria causing foodborne disease.", Biol Pharm Bull. 2004 Dec; 27 (12): 1965-9., PMID: 15577214
19. Green tea and blood sugar
The polyphenols and polysaccharides in green tea help to lower the blood sugar in a natural way.
Reference: Polychronopoulos E, Zeimbekis A, Kastorini CM, Papairakleous N, Vlachou I, Bountziouka V, Panagiotakos DB. (2008):
"Effects of black and green tea consumption on blood glucose levels in non-obese elderly and women from the Mediterranean Islands (MEDIS epidemiological study).", Eur J Nutr. 2008 Feb; 47 (1): 10-6. Epub 2008 Jan 18th, PMID: 18204918
20. Green tea and the immune system
Green tea polyphenols and flavonoids improve immune functions and increase the ability to defend against infections.
Reference: Monobe M, Ema K, Kato F, Maeda-Yamamoto M. (2008):
"Immunostimulating activity of a crude polysaccharide derived from green tea (Camellia sinensis) extract.", J Agric Food Chem. 2008 Feb 27; 56 ( 4): 1423-7. Epub 2008 Jan 31., PMID: 18232634
21. Green tea against flu infections
Green tea can protect against infecting yourself with a flu infection. There is a positive synergy with vitamin C.
Reference: Guralnik M, Rosenbloom RA, Petteruti MP, Lefante Cu (2007):
"Limitations of current prophylaxis against influenza virus infection.", Am J Ther. 2007 Sep-Oct; 14 (5): 449-54. Review., PMID: 17890934
22. Green tea and herpes
Green tea is antiviral and therefore increases the effectiveness of external interferon treatment for herpes. With a compress green tea can first be applied to the affected area of the skin, after which a special herpes treatment can be carried out.
Reference: Isaacs CE, Wen GY, Xu W, Jia JH, Rohan L, Corbo C, Di Maggio V, Jenkins EC Jr, Hillier S. (2008):
"Epigallocatechin gallate inactivates clinical isolates of herpes simplex virus.", Antimicrob Agents Chemother. 2008 Mar; 52 (3): 962-70. Epub 2008 Jan 14th, PMID: 18195068
23. Green tea and dental health
Through its antibacterial and antiviral properties green tea fights germs that can trigger diseases of the gums. It also reduces the production of harmful acids by bacteria.
Reference: Hirasawa M, Takada K, Otake S. (2006):
"Inhibition of Acid Production in Dental Plaque Bacteria by Green Tea Catechins.", Caries Res. 2006; 40 (3): 265-70.
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