Time for whey guide 101.Whey with water - fast absorptionWhey with milk - slow absorptionBest times to take with water are post workout to get it straight into your system, and first thing in the morning as rajs said.You need to think about when you want to intake carbs and when you do not, for example, if you have not eaten for a couple of hours, you want some food but are not hungry yet, whey with oats + other ingredients you throw in makes a perfect meal replacement. You may want to take your Reflex Instant Whey alone if you have consumed a lot of carbs in a meal and no protein i.e. i have just eaten a big bowl of oats before my workout but i have not had enough protein, i will just have whey to top up my protein content of the meal. You may also only want whey alone in the evening if you keep carbs low before going to bed. Hope this helps