jmragu wrote:I am interested in usng Oolong tea for a slimming effect.
I have heard this before. The claim is that oolong tea has a slimming effect because it suppresses appetite and promotes energy.
However, all caffeine will suppress appetite and promote energy. The caffeine in tea is water-soluble, so it has a slightly different effect on your body than coffee (or in pills). It works through more quickly, which gives you a gentle nudge of energy (instead of the jitters).
So the answer to the question of whether or not oolong will offer a slimming effect by suppressing appetite and increasing energy is "yes."
However, all real teas (black, white, green, white) come from the same plant, so they have similar health effects. It is true that some teas have more of one thing than another. There is most certainly a give-and-take, and teas that are better in one area are typically not as good in another. If you are after a specific effect, one tea might be slightly better than the others.
It looks like none of the experiments that have studied the weight loss effects of oolong have compared those effects to other teas. So, as to whether or not oolong has more of a weight loss effect than any other tea, I couldn't find any indication of that (or against it).
Since oolong falls between green and black, it is likely that one of those has more effect than oolong. Of course, since they haven't been compared to each other, it is hard to say for certain.
I would encourage you to find the tea you like best (not herbal tea, aka tisanes - these are not real teas), and drink that. Most likely, you will experience the effect you are looking for.
If you want to try oolong specifically, you should try to find one you actually like. Adagio sells several nice ones. They offer samplers that cost $2-5, so you can find the one you like without spending a lot of money. And you can get a $5 off gift certificate on your first order. I am partial to their Jasmine #12 myself, but it gets very expensive if you are going to be drinking a lot of it.