Originally Posted by Ultrasonic

I actually often prefer the taste with water (weirdo I know!) so it's mostly water for me. I do have 100ml of milk in my 500ml breakfast shake, but that's mainly for the calcium*, or if I'm using unflavoured whey the small amount of sugar does help the taste.

*which reminds me I must find out how much calcium there is in whey since I suspect it may actually be rather a lot so adding milk for this could be unnecessary.