Re: Nothing new here
Cheap green tea products are quite harsh. You need to spend a bit more to get the smooth ones.
Double Dragon Organic Green tea from H&B is a good low cost choice. Don't brew it too long, don't squeeze the bag and you will get smooth green tea.
As for health properties, I believe that anyone who actively uses green tea is probably someone who mindfully wants to look after themselves in general so are probably making healthy choices in general and their good condition is not necessarily down to the tea.
I drink tea any time anything needs sorting out and it seems to fix everything.