One of peter's personal training clients has specific nutritional requirements. why would peter refer this client to a registered dietician

I believe the answer is: Nutritional counseling does not fall within Peter's scope of practice.

Personal trainers tend to focus their practice in various workouts/movements that could help the client obtain the physical condition that he/she wants.

Even though they may have understand the general knowledge on what a healthy diet should be, specific nutritional requirements fall to the expertise of a nutritionist, not personal trainer.

1.Port of Antwerp  

2.Port of Hamburg