James Whitfield

James Whitfield

Pet Nutritionist

Animal Diet & Supplement Research

James Whitfield has spent his career studying animal nutrition with a focus on companion animals and has consulted for pet food companies on ingredient formulations. He is skeptical of marketing claims and writes with a research-first approach to dog food ratings, supplement efficacy, and dietary interventions. At Pet Doctor Guide, he covers nutrition, ingredient analysis, and how to read a pet food label.

Articles by James Whitfield

High White Blood Cell Count in Dogs: Causes and What to Do

7 min read

Why Is My Dog Shaking? 7 Common Causes Explained

8 min read

Why Is My Dog Throwing Up? 9 Causes and What to Do

9 min read

Why Regular Grooming Keeps Dogs Healthier

7 min read

Dog Cataracts: Treatment Options That Restore Vision

7 min read

Does Gabapentin Really Work For Your Dog's Pain?

7 min read

Stop Destructive Behavior: Proven Ways To Ease Dog Separation Anxiety

8 min read

Keep Multiple Pets Healthy: Essential Vet Care Tips

9 min read

Fighting Feline Cancer: Treatment Options Explained

7 min read

Signs Your Cat Has an Upper Respiratory Infection

8 min read

Why Your Cat's Cough Might Be Asthma

7 min read

Stop Fighting Your Dog's Dental Care

6 min read