Reviving an old thread.....
I've been drinking a lot of tea recently - mainly whole leaf green tea, but also "Pu Ehr" tea (bad name, i know) but it's apparently reputed to lower cholesterol levels and assist in weight loss. i have no opinion either way, but I enjoy the taste. I currently drink 2-3 litres per day. Mainly because I've got a 1 litre teapot....
There's a company called Nothing But Tea that offer a wide selection of excellent teas online - and have some really good sample collections so you can get to taste a whole range of strange teas for a fair price.
I have no idea how tea affects diabetes, so please don't take this post as any kind of recommendation, but i just like drinking it! My current favourite is "Exotic Pu Ehr" which is Pu Ehr tea with citrus, berries etc...... very tasty indeed.