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This guide is general education for pet owners. If your pet has urgent symptoms, possible poisoning, injury, breathing trouble, collapse, severe pain, or sudden decline, contact a licensed veterinarian or local emergency service.
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Can Cats Eat Raw Fish? Thiaminase & Neurological Triage
Clinical Verdict: TOXIC (Chronic Exposure)
Cats SHOULD NOT eat raw fish regularly. While a small piece won’t cause instant death, chronic feeding destroys essential Vitamin B1 in their body, leading to neurological collapse.
Toxic Mechanism & Agent
- Toxic Agent: Thiaminase enzyme
- Mechanism of Action: Raw fish (especially carp, herring, and catfish) contains thiaminase, an enzyme that aggressively breaks down thiamine (Vitamin B1) before the cat can absorb it.
Clinical Signs & Timeline
- Onset Time: Chronic; develops over weeks to months of a raw fish diet.
- Primary Symptoms: Anorexia, extreme weight loss, ventroflexion of the neck (chin touching chest), ataxia, pupils fixed/dilated, and ultimately seizures.
Emergency Triage Protocol
VET VISIT
Requires immediate dietary correction and intramuscular or intravenous thiamine (Vitamin B1) supplementation by a veterinarian. Do not attempt to supplement orally at home during severe neurological stages.
Strict Rule S1 Warning
NEVER induce vomiting at home using hydrogen peroxide without direct instruction from a DVM. Inappropriate emesis can cause fatal aspiration pneumonia. Always seek professional veterinary diagnosis.
Clinical Toxicology & Safety Tool
Pet Toxic Food & Hazard Fast-Checker
Rapidly verify toxicity risks, toxic mechanisms, and immediate clinical steps for common household foods, plants, and human medications before calling poison control or your veterinarian.
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