Your intake depends on your age, weight, goals, etc. A general rule of thumb is an intake of 1 to 1.5 grams per pound of body weight. Although the higher dosage is usually for those who are bodybuilding. If you are looking to supplement your diet for lean muscle production then the lower dosage will serve you better. However, you need to make sure you are getting enough activity to justify your intake. Excess whey protein not used by your body can cause wieght gain, as well as adverse effects in your kidneys and liver. Also, rather than depending on the supplement for your protein, you can concentrate on lean, whole foods for good protein. The whey protein should be just what it says "a supplement" to your "clean" diet. As far as the questions about a recovery shake with carbs in it. Your instant reflex drink has carbs in it already. I think your carbs should come from your everday diet. Just make sure you aren't taking in simple carbs like sugary drinks, candy, white breads (along with many others). Try to focus on complex carbs like fruits, vegetables, and whole grains. Sorry to be so long winded, but there are a lot of factors to consider when starting a supplement regimine. There is a lot of information out there you just have to find reputable sources to get it from.