How to Quickly Treat a Guinea Pig that Isn't Eating

How to Quickly Treat a Guinea Pig that Isn’t Eating

When Your Guinea Pig Stops Eating — Act Fast!

A guinea pig refusing food is an urgent issue. Stay calm and act quickly: this guide helps you assess emergency signs, offer safe high value foods, provide hand and syringe feeding, treat dehydration, and know when to see the vet.

What you'll need

Fresh hay, pellets, leafy greens, bell pepper (vitamin C)
1 mL–5 mL syringe (no needle), soft bowl, towel
Phone to record, vet contact
Calm approach and gentle hands
Must-Have
Oxbow Critical Care Emergency Herbivore Recovery Formula
Best for syringe-feeding sick rabbits and guinea pigs
Veterinary-formula powdered recovery food that mixes easily with warm water for syringe feeding. High-fiber, prebiotic-rich blend with vitamin C to support digestion and recovery in rabbits and guinea pigs.

Guinea Pig: Quick, Essential Care Guide


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Step 1 — Quick assessment: Is this an emergency?

Is it just picky behavior or a red-flag emergency? Spot the clues fast.

Check how long your guinea pig has been off food and look for red flags right away. Start by asking: has it been eating within the last 12–24 hours?

Feel the belly gently with your fingertips for bloating — press lightly, don’t prod. Lift the scruff briefly to check hydration; a slow return of skin means dehydration. Watch and note behavior.

Look for these urgent signs:

No droppings or very small/misshapen droppings
Drooling, nasal discharge, or noisy/rapid breathing
Hunched posture, grinding teeth (pain), or sunken eyes
Rapid weight loss or obvious weakness

If you see any of the severe signs above, or it hasn’t eaten for more than 12–24 hours, prepare to act fast and contact an emergency vet. Record behaviors and take a short video (quiet, close-up) to show the vet — it helps them diagnose quickly.

Highly Palatable
Oxbow Critical Care Herbivore Anise Recovery Formula
Top choice for picky eaters during recovery
Powdered emergency formula designed to mix with water for easy syringe or oral feeding. High in fiber with no added sugar, the anise flavor encourages intake during illness or recovery.

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Step 2 — Entice with safe, high-value foods

Try irresistible treats — sometimes the right snack wakes them up.

Offer small amounts of high-value, safe foods that guinea pigs usually love. Put fresh Timothy hay where they can reach it at all times. Give a few plain timothy pellets and vitamin C–rich veggies like bell pepper or parsley.

Provide tempting options:

Hay: fresh Timothy hay, always available
Pellets: a small handful of timothy pellets (soak if needed)
Veggies (vitamin C): bell pepper slices, parsley, or cilantro
Treat (last resort): a tiny slice of banana if they refuse everything

Avoid sugary fruit treats as first-line. Warm a little water and soak pellets or soft greens to make a fragrant, mash-like texture. Present food very close to the nose, on your hand, or in a shallow dish so it’s easy to sniff and nibble. Offer multiple tiny offerings throughout the day instead of one big pile. Try a gentle coaxing example—wave a warm pepper slice near the face; many pigs will investigate the smell. If they nibble, reward and keep offering frequent small portions to rebuild appetite.

Best Seller
Kaytee Wafer-Cut All-Natural Timothy Hay 60oz
America's #1 hay brand for digestive health
Wafer-cut timothy hay peels off in layers for less mess and easier feeding. Naturally grown, pesticide-free, and high in fiber to support healthy digestion for guinea pigs, rabbits, and other small pets.

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Step 3 — Hand-feeding and syringe feeding basics

When hands-on is needed: feed safely without causing stress or aspiration.

Make a soft mash: soak high-quality timothy pellets or alfalfa pellets (young pigs only) in warm water until mushy, or use a commercial critical care formula for herbivores (best). Warm the mash to body temperature and strain any large lumps.

Use a syringe (no needle): hold the pig upright with the head slightly elevated. Gently place the syringe tip at the side of the mouth and squirt tiny amounts so the guinea pig can swallow between drops. Stop if you see coughing, choking, or panic.

Follow these safety points:

Feed small volumes every 2–4 hours.
Clean and warm the syringe and food before each session.
Keep calm and stroke the pig to reduce stress.
Contact your vet for a live demonstration if you’re unsure.

Practice patience: offer 1–5 ml per shot for small pigs, letting them swallow each time. Seek immediate vet help if breathing changes, prolonged struggling, or inability to swallow.

Best Value
20-Pack 1ml Plastic Syringes with Protective Caps
Affordable small-volume syringes for precise dosing
Set of twenty 1ml non-sterile plastic syringes with caps, perfect for dosing liquids, oral medications, or feeding tiny amounts. No needles included, making them safe and handy for everyday pet or craft use.

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Step 4 — Treat dehydration and stabilize at home

Dehydration sneaks up — here's quick first aid that helps until the vet.

Treat dehydration quickly. Offer fluids via syringe slowly: give small sips of plain water or a lightly diluted unflavored electrolyte (e.g., Pedialyte 50:50 with water). Aim for tiny, calm doses so the pig can swallow between drops.

Check hydration and comfort regularly:

Inspect gums: they should be moist and pink. Pale or tacky gums are a red flag.
Test skin elasticity: gently pinch the scruff; it should snap back quickly. Slow return means dehydration.
Keep warm and quiet: place the pig in a towel-lined carrier in a draft-free spot. Put a warmed (not hot) heating pad under part of the bedding so the pig can move away if too warm.
Avoid subcutaneous fluids unless you are trained—don’t attempt injections at home.
Monitor output: watch for decreased urine, very small or dry droppings, or a lack of droppings.

If dehydration looks moderate to severe, the pig won’t take fluids, or you’re unsure, go to the vet for IV/subcutaneous fluids and stabilization.

Must-Have
3-Pack 20ml Syringes with Caps for Dispensing
Great for measuring and dispensing larger volumes
Three 20ml plastic syringes with caps ideal for measuring, dispensing, or oral dosing of larger liquid volumes. Useful for lab work, kitchen tasks, or giving bigger liquid feeds to pets.

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Step 5 — When to see the vet and what they'll do

Don’t wait — these signs mean a pro should take over now.

See a veterinarian experienced with exotics if appetite isn’t back within 12–24 hours, or if you notice dehydration, severe lethargy, rapid weight loss, blocked gut (no droppings), obvious dental overgrowth, or breathing problems.

Expect a focused physical exam and a close dental check. Ask for radiographs (X-rays) if a gut blockage or retained food is suspected.

Expect fluids (subcutaneous or IV) to correct dehydration, plus pain relief and antibiotics if infection is likely. Expect vitamin C injections and the start of force‑feeding with a specialized critical‑care diet (for example, Oxbow Critical Care) if your guinea pig won’t eat on its own. Expect dental trims or extractions if overgrown teeth are the cause.

Bring helpful items to the visit:

A fresh sample of droppings (put in a small zip bag).
A short video showing recent behavior or breathing.
A list of recent foods/changes (new hay, veggies, treats, meds).

Early vet treatment greatly increases the chance of recovery.

Editor's Choice
Lixit 35cc Hand Feeding Syringe for Pets
Perfect for feeding baby birds and small animals
Pharmaceutical-grade 35ml hand feeding syringe with a rubber plunger seal, clear volume markings, and a tapered tip for adding tubbing. Handy for safely administering food or medicine to baby birds and small animals.

Act quickly — your care makes the difference

Prompt, calm assessment and immediate supportive feeding or fluids can save your guinea pig; follow the steps above, watch for red flags, and seek veterinary care without delay if there’s no quick improvement. Try these actions, then share your results.

Emily Stevens
Emily Stevens

Emily is a passionate pet care expert and the voice behind Pet Wool Bed.

2 Comments

  1. Short and sweet: this was exactly the step-by-step I needed. Easy to follow, calm tone, practical. Thanks for writing it!

  2. Solid guide. Not gonna lie, I laughed a bit at myself trying to coax a 2 kg rodent with a cucumber slice like it’s a bribe. Worked, though. Syringe feeding looked scarier than it actually was. No vet yet, fingers crossed.

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