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Feline Gastritis Complete Guide - Vomiting Frequency Chart & 7-Day Diet Recovery
Covers acute vs chronic gastritis, vomiting frequency severity chart, when to see a vet, and a concrete 7-day dietary recovery plan with specific meal guidelines.
Mar 10, 2026
What is Feline Gastritis?
Feline gastritis is inflammation of the gastric mucosa. It is classified as acute or chronic, each with different causes and management strategies. According to Cornell Feline Health Center, a significant portion of feline vomiting is related to gastritis, and accurate cause identification is key to preventing recurrence.
Feline Gastritis
Acute vs Chronic Gastritis Comparison
| Type | Duration | Main Causes | Recovery | Vet Required |
|---|---|---|---|---|
| Acute | 24–72 hours | Spoiled food, foreign body, diet change | Self-resolves in 1–3 days | If symptoms persist |
| Chronic | 3+ weeks | Food allergy, underlying disease, medications | Requires ongoing management | Always required |
Severity Classification by Vomiting Frequency
| Vomiting Frequency | Severity | Action |
|---|---|---|
| 1–2 times/week | Mild | Check diet, slow feeding |
| 3–5 times/week | Moderate | Vet visit within 1 week |
| 2+ times/day | Severe | Vet visit within 48 hours |
| Bloody vomit | Emergency | Immediate vet |
6 Main Causes of Gastritis
- Spoiled food or abrupt diet change
- Foreign body ingestion — hairballs, thread, grass
- Medication side effects (especially NSAIDs)
- Food allergy or intolerance (protein source is the most common trigger)
- Toxin buildup from kidney or liver disease
- Helicobacter infection (clinical significance in cats still debated)
7-Day Dietary Recovery Plan
| Period | Diet Method | Meal Size | Frequency |
|---|---|---|---|
| Day 1–2 | Fasting or water only (per vet guidance) | — | — |
| Day 3–4 | Prescription wet food or boiled chicken broth | 25% of normal portion | 4–5 times/day |
| Day 5–6 | Easily digestible wet food | 50% of normal portion | 3–4 times/day |
| Day 7+ | Gradual return to regular food | 75–100% of normal portion | 2–3 times/day |
Diagnosis & Veterinary Treatment Options
- Blood panel: kidney, liver function, infection markers
- Abdominal ultrasound: stomach wall thickness, foreign bodies
- Endoscopy + biopsy: confirms cause of chronic gastritis
- Acid suppressors (omeprazole): protect gastric mucosa
- Antiemetics (maropitant): reduce nausea
- IV fluids: correct dehydration
When to See a Vet Immediately
- Blood in vomit (bright red or coffee-ground appearance)
- Not eating or drinking for 24+ hours
- Extreme lethargy or pressing abdomen to ground
- Body weight drops 10%+ in 1–2 weeks
- Abdominal bloating with vomiting (possible bowel obstruction)
Track your cat's weight and digestive health with the Nutrition Planner.
※ This article is for informational purposes based on veterinary resources. Always consult a licensed veterinarian for diagnosis and treatment of your cat.