My girlfriends a dental assistant so she demanded I inform everyone on this subject because while in my kitchen she decided to read ingredients in my pre-workout stim powder and every jug of I have and said to never sip on sugary drinks especially the one with citric acid and other acid because it baths and strips enamel from your teeth ,and when you do drink them always drink water to neutralize the acid ph in your mouth. So please do it cause dentists are crooks ..So it's best to drink all at once .