Evidence: nutrition for canine retinal and eye health (peer-reviewed, PubMed)
Source: PubMed/Europe PMC — first-hand peer-reviewed abstract records, pulled 2026-07-23. 6 representative studies are extracted below. Abstract text is verbatim from source; each study is traceable by PMID.
Studies
- PMID 42278031 (2026, Animals : an open access journal from MDPI) — Effects of Traditional Chinese Herbal Extracts on Tear Staining, Iron Status, Immune Function, and Antioxidant Capacity in Dogs.. Tear staining is a common yet often underestimated condition in dogs that affects appearance and may reflect underlying disease. This study evaluated dietary supplementation with the traditional Chinese herbs <i>Chrysanthemum morifolium</i> (CM), <i>Cassia semen</i> (CS), and <i>Poria cocos</i> (PC) in dogs predisposed to tear staining and investigated potential mechanisms. Forty Poodle and Bichon
- PMID 41976013 (2026, Animals : an open access journal from MDPI) — Plant-Derived Functional Ingredients in Pet Nutrition: Phytochemical Classification, Mechanisms, Efficacy, and Application in Dogs and Cats.. This review classifies plant-derived functional ingredients in pet food according to phytochemical groups and application forms, including direct oral supplementation and incorporation into complete diets. Polyphenols and plant extracts exert prominent antioxidant (singular), anti-inflammatory, immunomodulatory, and microbiome-regulating effects. Microalgae and omega-3 sources support lipid metabo
- PMID 41882631 (2026, BMC veterinary research) — Deletion in CACNA1F gene causes X-linked progressive retinal atrophy in English Cocker Spaniel dogs.. BACKGROUND: Progressive retinal atrophy (PRA) was diagnosed in four related male English Cocker Spaniels (ECS) between the ages of 3 and 4 years. All affected dogs were born to clinically unaffected parents that had tested negative for known PRA-causing variants through commercial vendors. Pedigree analysis revealed that the mothers of the affected dogs were paternal half-siblings, and their fathe
- PMID 41150104 (2025, Veterinary sciences) — Nutraceuticals, Social Interaction, and Psychophysiological Influence on Pet Health and Well-Being: Focus on Dogs and Cats.. Pet humanization, particularly in dogs and cats, has transformed animal healthcare and highlighted the importance of nutrition in promoting human-pet social interaction, pet psychophysical well-being and, possibly, longevity. Nutraceuticals, such as omega-3 fatty acids, prebiotics, probiotics, plant extracts and dietary supplements, are endowed with antioxidant, anti-inflammatory, immune-modulatin
- PMID 42092959 (2026, BMC veterinary research) — Integrated effects of dietary supplementation of Spirulina platensis in working dogs: nutritional, biochemical, antioxidant, immunological, gut-related microbial and nutrigenomic insights.. <h4>Background</h4>The present study investigated the effects of daily dietary supplementation with Spirulina platensis powder at two inclusion levels (0.04 g and 0.08 g/kg body weight) for working dogs. Spirulina platensis is a nutrient-rich microalgae containing high-quality protein, vitamins, minerals, and antioxidant pigments. These constituents are reported to possess immunomodulatory, antiox
- PMID 42245978 (2026, Frontiers in veterinary science) — Insights into the influence of dog and guardian demographics, nutrition, and relationship on raw feeding practices.. <h4>Introduction</h4>Raw meat-based diets (RMBD) are increasingly popular among dog guardians, yet the role of personal nutrition habits and pet-guardian relationships in their adoption remains unclear. This study examines how these factors, alongside previously identified drivers of pet food selection, specifically relate to the decision to feed RMBD.<h4>Methods</h4>Data from 433 dog guardians we
Source text: pdf-raw/evidence/pubmed_canine_eye_vision_diet_2026-07-23.txt (PubMed/Europe PMC first-hand abstracts, pulled 2026-07-23).