Protiene Shakes

Patient: I make a protiene shake in the morning with fresh fruit and wheat germ the one i use is spiru tein proteinmix . the question is the one i use is made with soy someone told me that i should use the one made with Whey. Is there a difference the person told me that soy is not good for men only women that i should use the one with Whey. Is that true ?

Doctor: