Har? No white sugar????

Whenever there's relative come stay at my place, they will ask me one thing. How come your house got no white sugar one? White sugar not good for health mar, it will get rid the vitamin B in our body, so if possible, don't take white sugar. What if i need sugar when I cook? Especially when I boil 'tong shui'?

Well, when I cook, I used brown sugar, as for tong shui, i used rock sugar. At first I'm not used to brown sugar too, but slowly, it had become a habit, even now in office, I also choose brown sugar rather than white sugar when making coffee. So what about you? which sugar you prefer? White? Brown? Red?