Vets Preferred in downtown San Diego's Middletown district manufactures veterinarian-formulated pet supplements from its Kettner Boulevard headquarters, producing all products in FDA-registered, cGMP-certified U.S. facilities. The core lineup — Wild Alaskan Salmon Oil for coat and immune support, an Advanced Oral Care water additive, anti-diarrhea liquid, and puppy milk replacer with immunoglobulin — fills the over-the-counter supplement tier between the premium foods stocked at shops like San Diego Paw Co. in Little Italy and prescription veterinary pharmaceuticals. Formulations use 100% natural ingredients with no prescription requirement, shipping directly to owners who want veterinarian-grade nutritional support without a clinic visit. The Wild Alaskan Salmon Oil sources non-farmed fish from Alaskan waters, delivering DHA and EPA concentrations that target skin irritation, coat dullness, and inflammatory joint conditions in aging dogs. That joint-health and dermatology focus positions the supplements as a complement to the allergy testing and chronic-condition management at veterinary practices like Bodhi Animal Hospital in North Park. The most specialized product, Advanced Milk Rx, combines natural milk proteins, calcium, and digestive enzymes with immunoglobulin to support neonatal puppies, lactating mothers, and senior dogs in recovery — a clinical-nutrition tier that most retail supplement brands do not attempt.