Does Whey Protein Isolate (WPI) make you gain weight?Updated a year ago

No, Whey protein isolate will not cause you to gain weight if you are using it correctly. If you are taking the recommended amount each day and combining that with a balanced diet and a regular workout routine then you will not gain weight.

Your weight depends primarily on the quantity and quality of the foods that you consume during the day in conjunction with your protein isolate (Chandler, R. 2020).