The general recommendation of 0.8g to 1.2g of protein per kilogram of body weight per day aligns with established nutritional guidelines. However, the amount may vary based on activity level, health conditions and fitness goals. Athletes or those aiming to build muscle may target the higher end of the range (sometimes, up to 2g per kg). Supplementing a balanced diet with 1-2 whey protein shakes is a common approach, though individual protein requirements can vary. It is better to have the 2 scoops separated instead of together as studies show that more than 40g of protein at a time provides no additional benefit. It's always a good idea to consult a nutritionist for personalised advice.