Glucon D is a instant enery provider to your body.it comes in white also and in flavours also.i like orange flavour.In summers I drink it dialy.when I come home from tutions tiring, exhausting from the burning sun , my mom used to give immediately and I used to feel energy in my body.and you dont have to take in cold water , the water instantly become cold after putting glucon D.product quality is very good without any doubt.product package is also good.but once we open its better to put in a air tight container.it comes in a reasonable price and very healthy.doctors also reccommend it.however diabities patient should not take it as it has lot of sugar in that , it will harm their body.but overall its a very good and instant energy booster.