Main Question or Discussion Point
has science found any documented proof that drinking green tea every day has health benefits for you? If so what are they?
lef.org/magazine/mag99/mag99_6.htmlmisskitty said:has science found any documented proof that drinking green tea every day has health benefits for you?
Epidemiological studies have indicated that regular consumption of red wine and green tea is associated with a reduced risk of coronary heart disease and tumor progression. The development of tumors and of atherosclerosis lesions to advanced plaques, which are prone to rupture, is accelerated by the formation of new blood vessels. These new blood vessels provide oxygen and nutrients to neighboring cells. Therefore, recent studies have examined whether red wine polyphenolic compounds (RWPCs) and green tea polyphenols (GTPs) have antiangiogenic properties. In vitro investigations have indicated that RWPCs and GTPs are able to inhibit several key events of the angiogenic process such as proliferation and migration of endothelial cells and vascular smooth muscle cells and the expression of two major proangiogenic factors, vascular endothelial growth factor (VEGF) and matrix metalloproteinase-2, by both redox-sensitive and redox-insensitive mechanisms. Antiangiogenic properties of polyphenols have also been observed in the chick embryo chorioallantoic membrane since the local application of RWPCs and GTPs strongly inhibited the formation of new blood vessels. Moreover, intake of resveratrol or green tea has been shown to reduce corneal neovascularization induced by proangiogenic factors such as VEGF and fibroblast growth factor in mice. The ability of RWPCs and GTPs to prevent the formation of new blood vessels contributes, at least in part, to explain their beneficial effect on coronary heart disease and cancer.
there is alot of money in researching natural products for the treatment of disease, especially cancer and heart disease. it isn't too hard to get a grant from NIH or AHA to HPLC natural products and then test them in cell culture - in fact there is a lab at NIH that can screen compounds against hundreds of cell lines for a hefty fee.misskitty said:Wow. I guess it is a good thing I drink green tea then. Does anyone care to speculate as to the motivations for such extensive research on this tea?
No problem. I used to just eat the leaves. Now I take it in pills. Another option I have used: BAC has extracts of green tea in inexpensive powder form.iansmith said:I remember seen this report on discovery that soaking time had a major influence on the release of the protective agent.
LDL is the bad and HDL is the good.misskitty said:Wait isn't LDL 'good cholesterol' and HDL is 'bad cholesterol'? So when you say your HDL was "barley in the acceptible region" did you mean it was too low?
Wouldn't you want it low? Or do I have that backwards?
You might relate them to bodyfat and muscle. Muscle is generally preferable to bodyfat and is heavier (high density). HDL is generally preferable to LDL and is heavier (High Density Lipoprotein).misskitty said:Guess I did get them confused (again.)
I drink green tea as well. Actually to think about it I only drink teas, iced teas, water, and alcohol. No sodas for me. When I feel like I'm getting sick I take Echinacea and I already have a high Vitamin C intake daily and have found that I haven't been sick in a couple years.misskitty said:I find when I feel a cold coming on if I drink 5-6 servings of green tea that I feel better the next day. Could that be attributed to the antioxidents in the tea? I don't know of any other teas that work the way green tea does. Does anyone know of a tea with similiar effects to green tea?
It sounds like you've been watching coral calcium infomercials. Please post links to valid scientifc/medical sources to back up your claims.champ2823 said:I drink green tea as well. Actually to think about it I only drink teas, iced teas, water, and alcohol. No sodas for me. When I feel like I'm getting sick I take Echinacea and I already have a high Vitamin C intake daily and have found that I haven't been sick in a couple years.
Another thing with Green Tea is that it is an alkalizer and Nobel Peace Prize winners have done research on the affects of PH balance in your body. When I had my aquariums set up, ph was a big issue as if it got too high or low, my fish would be on their way down the toilet. Likewise, our body has a normal ph level beween 7.0 and 7.3 or closely similar dependent on the source. Anyways, these scientists as well as many scientists and doctors today have done research on ph levels relevant to people who are sick with just about anything like influenza, cancer, etc. Their findings conclude that cancer patients, etc., almost always have an abnormally low acidic ph. By raising the ph level of those people to alkaline, it has resulted in the cancer going away. The results are pretty mind boggling but this practice isn't really done in the U.S. where chemotherapy is primarily used with little proven results...but it's very expensive. In Europe, the ph thing is growing rapidly in popularity. It's really an interesting subject to search. An example used was that the U.S. cancer ratio is roughly 4 to 1. In Hopi Indian tribes, the ratio was 1,000 to 1 until supermarkets were built around their areas and their diets changed from almost exclusively alkalizers to a more acidic base. An interesting little tidbit as well is that it takes 22 or 23, I forget, glasses of water to offset the acidity from one soda to neutrality.
LDL’s can build up in the walls of arteries and form so-called plaques that can block the arteries, a condition called artherosclerosis. If this happens in the arteries that supply parts of the brain or the heart with oxygen this can lead to a stroke or heart failure. This is the reason they are associated with “cardio disease”.hitssquad said:As far as I am aware, cholesterol levels are irrelevant to cardiovascular health. Green tea inhibits oxidation, which is important for cardio health, of both HDL and LDL and in fact LDL may have positive health impacts (as long as it is not oxidized). Fish oils are toxic if they are oxidized, yet they are beneficial to health if they are not oxidized. Perhaps high LDL levels became associated with cardio disease because the LDL in the persons measured tended to be oxidized and therefore toxic.
Your brain is composed of LDL, by the way. Reduce LDL and you suffer diseases of demyelination including adult-onset mental-retardation. Completely remove LDL from your body and you die.
HDL, on the other hand (being more protein and less lipid), is harder to oxidize. Therefore it gets the label from journalistic (and not scientific) medicine of "good cholesterol," though it may in fact be quite harmful to raise it in comparison with the possibly much-more-important-for-health LDL.
Dietschy & Turley said:...Currently, there is no evidence for the net transfer of sterol from the blood into the brain or spinal cord. In adults, the rate of synthesis exceeds the need for new structural sterol, so that net movement of cholesterol out of the CNS must take place...