DECREASED APPETITE (ANOREXIA) IN DOGS/CATS
WHAT THIS SYMPTOM USUALLY MEANS
A decreased appetite is one of the most important early warning signs of illness in pets. It signals pain, metabolic disease, organ dysfunction, or infection.
MOST COMMON CAUSES
MILD
• Stress
• Mild GI upset
• Recent vaccination
• Motion sickness
• Food dislike
MEDICAL
• Kidney disease
• Diabetes
• Pancreatitis
• Hyperthyroidism (late stage)
• Cancer
• Dental pain
• IBD
• Liver disease
EMERGENCY
• Pancreatitis
• Obstruction
• Diabetic ketoacidosis
• Severe kidney failure
• Pyometra
• Toxic exposure
RED FLAGS
• Not eating for >24 hrs in cats
• Not eating for >48 hrs in dogs
• Vomiting + anorexia
• Diarrhea + anorexia
• Senior pet not eating
• If unsure, treat as urgent.
AT-HOME CARE
• Warm food
• Offer bland food (unless diabetic)
• Provide fresh water
These do not replace a vet exam.
WHAT A VETERINARIAN WILL CHECK
• Full exam
• Bloodwork
• Urinalysis
• Dental evaluation
• Imaging
• Pancreatitis testing
MOST LIKELY DIAGNOSES
• Dental disease
• GI disease
• Kidney disease
• Diabetes
• Pancreatitis
• Cancer
RISK GROUPS
• Senior pets
• Cats (liver risk from not eating)
• Pets with known metabolic disease
WHEN TO SCHEDULE
• Cats: within 12–24 hours
• Dogs: within 24–48 hours
• Today: vomiting or lethargy
EXPECTED RECOVERY
• Dental: immediate after treatment
• GI upset: 24–72 hours
• Kidney disease: ongoing
• Pancreatitis: days to weeks
LONGEVITY IMPACT
Loss of appetite is one of the strongest predictors of declining longevity in aging pets.
LONGEVITY CONSULT
Ideal for senior pets or pets with chronic decreased appetite.
FAQ
Is skipping one meal OK?
Yes, but watch closely.
Should I syringe feed?
Only under vet guidance.
Can stress alone do this?
Yes, but rule out disease.