Concentrate vs. Isolate vs. Hydrolysate
Concentrate: Cheapest, 80% protein, some lactose/fat. Good for most.
Isolate: Filtered, 90%+ protein, almost no lactose. Good for sensitive stomachs.
Hydrolysate: Pre-digested, fastest absorption. Expensive. Minor benefit for pros.
The Anabolic Window?
You don't need to chug a shake 30 seconds after your last rep. The "window" is hours long. However, Whey is convenient immediately post-workout to start recovery.
Real Food First
Supplements supplement the diet; they don't replace it. Fitblues recommends getting 80% of protein from whole foods (Meat, Eggs, Dairy, Beans) and using Whey to hit the final 20%.
Conclusion
Detailed tracking in Fitblues helps you decide if you actually need that shake to hit your macros.