The Sustainable Pet Blog
Evidence-based guides on dog nutrition, food allergies, and sustainable pet care.
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Is Royal Canin Hydrolyzed Protein Good for Dogs? An Honest Review
An honest review of Royal Canin Hydrolyzed Protein — how it works, what's in it, who it helps, the tradeoffs, and the…
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Why Does My Dog Keep Getting Ear Infections? The Food Allergy Connection
Chronic ear infections in dogs are often the first sign of an underlying food allergy. Here is what the veterinary dermatology research…
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Petaluma Adult Baked Recipe vs. Purina Pro Plan HA Hydrolyzed: A 2026 Comparison
Plant-based whole foods vs. prescription hydrolyzed protein. Here is how Petaluma Adult Baked Recipe compares to Purina Pro Plan HA Hydrolyzed on…
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Best Plant-Based Dog Food for Allergies (2026): A Vet-Reviewed Comparison
Beef, dairy, and chicken account for two-thirds of confirmed canine food allergies. Here are 2026's best plant-based dog foods for allergies, ranked,…
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Senior Dogs With Food Allergies: A Plant-Based Approach to Aging With Sensitivities
Beef, dairy, and chicken account for the majority of confirmed food allergies in dogs. A plant-based diet avoids them all by design.…
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Petaluma vs. Hill's Prescription Diet z/d: Which Is Better for Dogs with Food Allergies?
Your vet recommended Hill's z/d. You looked at the ingredient list. You looked at the price tag. Now you're here. This post…
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Petaluma vs. Royal Canin Hydrolyzed Protein: A Smarter Option for Dogs with Food Allergies?
If your dog has been diagnosed with a food sensitivity or suspected protein allergy, there's a good chance your vet has mentioned…
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Seasonal Allergies in Dogs: Symptoms & Treatment
If your dog starts itching, licking their paws, or shaking their head every spring, they're likely dealing with seasonal allergies — one…
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Plant-Based Dog Food: A Natural Alternative to Hydrolyzed Diets for Allergies
Quick Answer Plant-based dog foods offer a hypoallergenic alternative to hydrolyzed diets by naturally avoiding common animal protein allergens (beef, chicken, dairy,…
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Hydrolyzed Dog Food: Complete Guide for Dogs with Allergies
Hydrolyzed dog food is a diagnostic tool, not a destination. Enzymes break its proteins into fragments too small for your dog's immune…
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Hydrolyzed Protein vs. Plant-Based Dog Food: A Complete Guide to Managing Food Allergies
Is your dog struggling with food allergies? While hydrolyzed protein diets have been a go-to solution, many pet parents are discovering…
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Understanding Seasonal Allergies in Dogs: Symptoms, Treatments, and Spring Precautions
Much like humans, dogs can suffer from environmental allergies, with spring being a particularly troublesome time for many. In this blog post,…
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