🔍 What Is EPI?

Exocrine pancreatic insufficiency (EPI) in cats is a condition where the pancreas fails to produce enough digestive enzymes—lipase, protease, amylase—needed for normal nutrient breakdown. It often results from chronic pancreatitis or significant loss of pancreatic tissue :contentReference[oaicite:3]{index=3}.

⚠️ Who Gets EPI & Why?

Although rare (prevalence ~0.013–0.1 %), EPI primarily affects middle-aged to older cats of any breed :contentReference[oaicite:4]{index=4}. The leading cause is chronic pancreatitis; other causes include pancreatic cancer, duct blockage, or developmental defects :contentReference[oaicite:5]{index=5}.

🍃 Key Clinical Signs

• 💡 Weight loss, despite good or increased appetite (polyphagia) :contentReference[oaicite:6]{index=6}
• 💩 Loose, voluminous, pale, foul-smelling stools—sometimes greasy (steatorrhea) :contentReference[oaicite:7]{index=7}
• 😿 Intermittent vomiting, poor coat condition, occasional anorexia or lethargy :contentReference[oaicite:8]{index=8}
• 😺 In some cats, GI signs may be mild or absent—weight loss alone can be a clue :contentReference[oaicite:9]{index=9}

🔬 Diagnosis: Tests You Need

1. fTLI (feline trypsin-like immunoreactivity): Gold-standard—values ≤ 8 µg/L confirm EPI :contentReference[oaicite:10]{index=10}.
2. Abdominal ultrasound: Can show thin/absent pancreatic tissue or dilated ducts, often with small-bowel changes :contentReference[oaicite:11]{index=11}.
3. Blood & urine tests: Check for concurrent diabetes, kidney or thyroid disease :contentReference[oaicite:12]{index=12}.
4. Cobalamin (B12) levels: Nearly all EPI cats are deficient—essential to test :contentReference[oaicite:13]{index=13}.

💊 Treatment Strategies

• Pancreatic enzyme supplementation: Powdered or enteric-coated—mixed with food; initial dose ~½–1 tsp per meal :contentReference[oaicite:14]{index=14}.
• Cobalamin injections: Weekly until low-normal; often lifelong monthly supplementation :contentReference[oaicite:15]{index=15}.
• Diet selection: Highly digestible diets, moderate fat; fiber to slow transit—some cats do well with canned food :contentReference[oaicite:16]{index=16}.
• Additional support: Probiotics, appetite stimulants as needed :contentReference[oaicite:17]{index=17}.
• Treat underlying disease: Chronic pancreatitis, GI conditions, diabetes—manage holistically :contentReference[oaicite:18]{index=18}.

📈 How Cats Respond

Most cats improve within a week—weight gain and firmer stools are seen. Lifelong therapy is required. Without treatment, EPI leads to progressive malnutrition and poor quality of life :contentReference[oaicite:19]{index=19}.

⚖️ Long-Term Management

• Routine vet check-ups every 3–6 months—monitor weight, stool, appetite, B12 and TLI)
• Adjust enzyme dose with life stage and diet
• Continue monthly B12 and use probiotics for gut health
• Record symptoms and use the Ask A Vet app for ongoing guidance

🏡 Home Environment Tips

• Feed small meals multiple times daily
• Keep water available and encourage hydration
• Use calming products from Woopf and Purrz to support wellbeing
• Ensure stress-free environment—routine, play, comfort—important for GI function
• Monitor body condition—hold slow weight gain after treatment begins

📝 Summary Table