Whey is a complete dairy protein with all essential amino acids. Your body absorbs it quickly, which helps trigger muscle repair and growth after hard exercise. Timing it soon after workouts supports recovery and muscle protein synthesis.
Active people use 20 to 40 grams mixed with water, milk, or blended into a smoothie to meet daily protein targets. Fitter habits often include a shake post-exercise, but it works at any time of day to assist with weight management when you swap it in for a meal or snack.
Lactose intolerance can bring digestive issues, especially with whey concentrate. Whey isolate strips away most of the lactose. Skip whey entirely if you have a milk allergy. Before raising protein intake sharply, check with your healthcare provider if you have kidney concerns.