What unites all successful feeding strategies for the German Wirehaired Pointer?

Answer

Recognition that the diet must be dense in quality nutrients.

Successful feeding strategies for GWPs, irrespective of the specific philosophy used, share the common requirement that the diet must be dense in quality nutrients to support vital functions like muscle mass, energy levels, and coat health.

What unites all successful feeding strategies for the German Wirehaired Pointer?
Dognutritionfeedingbreedpointer