Qiyu Yan

Why a Vegan Diet for Cats Is Biologically Impossible — And Why ‘Plant-Based Cat Food’ Is a Marketing Story, Not a Nutritional One

Can cats survive on a vegan diet? The biochemistry says no — and the story of why reveals more about human psychology than feline nutrition. A marketer-turned-nutrition-student breaks down the enzyme deficiencies that make obligate carnivory non-negotiable.

October 7, 2026

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Pet Nutrition

The Protein Debate for Senior Dogs: Rethinking Everything You Know About Protein Requirements

For decades, 'senior dog food' has meant low protein. But modern veterinary science says otherwise. Here's what AAHA 2023 and WSAVA 2024 actually recommend for senior dog protein — and why the old advice refuses to die.

October 7, 2026

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