I am not going to post a very long post. Out of the curiosity I bought Suntory Morning tea to try it out this morning.
Guess what after finished half a bottle, I ended up in toilet.
Warning, so do not drink this type of drink as they contained the maltooligoseccharide. I ended up having diarrhea. Drink at your own risk!
Read more about this here : https://en.wikipedia.org/wiki/Isomaltooligosaccharide
I would rather make my own milk tea then trying out this.