Yes I drink green tea also because of it's proven health benifits, not because the Japanese appear to be healthier. I myself am of 100% German ancestry. This means agrigculture did not arrive in my neck of the woods until a mere 5000 years ago, potatoes only 500 years ago. So I've decided to eat what my ancestors have been eating for the 35000 years before agriculture arrived, a diet which happens to low carb. And it works great for ME. It probably does not work great for a Japanese person.
Arioch7 states "Japan is the country that has the most longevity, the most healthy people in the world. That is FACT."
Where is this a proven fact, in FACT the Japanese have much higher rates of stomach cancer and strokes. I would say it is highly subjective to state they are the healthiest.
The alleged health of the Japanese diet may be due to other factors like their higher intake of Omega 3 fatty acids (they eat more fish) or their higher intake of green tea, or maybe even their lower consumption of carcinogenic, heart damaging Omega 6 fatty acids. The point is that we don’t know, and copying part of someone else’s diet because you think you know what’s going on is erroneous.
Got this info from www.geocities.com/tbkfitness/l owfat.html