My turn to chime in: I agree that in general a hot tea beverage is a great thing to avoid snacking. I personally had to cut back on tea drinking, because I usually snacked with it, having cookies with my afternoon tea.
Both black and green teas have antioxidants so have benefits. SInce cutting back caffeine I can only have decaf in the afternoons, and not even that in the evening.
Herbal teas (I prefer the term tisane, to differentiate) only have caffeine if its added or the herbs have it, but beware, lots of specialty teas like "blackberry" etc may be black tea with flavouring, and have lots of caffeine so read labels carefully.
I also wonder if some of the fruit teas (especially herbals) are really calorie free? Are they getting flavour from dried fruit in the mix? If so, they could be natural sugars coming out and affecting you. Not sure on this.
I don't think, unless you drink a ton of black teas you will yellow your teeth tho, I have no major problem and have been drinking several cups of black tea a day since age 10.
hmm
maybe we should organize a virtual tea party!
no cream cakes please tho
