OK lar, as long as you don't drink excessively, still acceptable.

1 packet only 86kcal.

I concur, drinking plain white tea is way better than drinking nescafe. I've read somewhere that drinking green tea will raise your metabolism and fat calorie burning as long as they're sugar free.

I am brewing a mixture of oolong\green tea daily. It's awesome.

both are good as long as there are less or no sugar.