“Chinchillas should eat unlimited grass hay, such as timothy or orchard grass, about 1 to 2 tablespoons of plain chinchilla pellets a day, and fresh water. Treats should be rare and low in sugar, like a single rose hip or a small piece of dried herb. Avoid nuts, seeds, dried fruit, sugary treats, and most fresh fruits and vegetables.”
Chinchillas evolved in the dry, rocky Andes, eating tough grasses, shrubs, and bark. Their digestive systems are built for a sparse, high-fiber diet, which means rich foods that seem harmless to us can cause serious problems for them. The good news is that a healthy chinchilla diet is simple and inexpensive. Here’s exactly what to feed and what to avoid.
The Ideal Chinchilla Diet
| Food | Amount | Purpose |
|---|---|---|
| Grass hay | Unlimited, available at all times | Fiber for digestion and tooth wear |
| Chinchilla pellets | About 1 to 2 tablespoons per day | Balanced vitamins and minerals |
| Fresh water | Always | Hydration |
| Treats | Very small, a few times a week at most | Bonding and enrichment |
| Chews | Always available | Dental health |
Hay: The Most Important Food
Hay should make up the vast majority of a chinchilla’s diet. It keeps the gut moving and wears down teeth that grow continuously throughout life. Good choices include:
- Timothy hay
- Orchard grass
- Meadow hay
- Brome hay
- Oat hay (without seed heads, or only occasionally with them)
Alfalfa hay is higher in protein and calcium. It’s sometimes fed to young, pregnant, or nursing chinchillas, but adults usually do best on grass hay with alfalfa only as an occasional addition. Offer fresh, green, sweet-smelling hay and replace it daily. Chinchillas are picky and may ignore hay that’s been soiled or trampled.
Pellets
Choose plain, uniform pellets made specifically for chinchillas. Avoid mixes with seeds, nuts, dried fruit, corn, or colorful pieces; chinchillas pick out the rich bits and leave the balanced pellets. Most adults need about 1 to 2 tablespoons a day. Too many pellets can lead to weight gain and less hay eating.
Safe Treats (in Tiny Amounts)
Treats should be special, not daily staples. Good options include:
- A single dried rose hip
- A small pinch of dried herbs like chamomile, dandelion leaf, or plantain
- A few rolled oats or a plain shredded wheat square (unsweetened)
- Dried, pesticide-free hibiscus or rose petals
- A thin piece of dried apple (very occasionally)
Limit treats to a small portion a few times a week. Even “healthy” treats can upset digestion if overdone.
Foods to Avoid
- Nuts and seeds: too high in fat and can cause digestive and liver problems.
- Dried fruit like raisins and dates: very high in sugar.
- Fresh fruit and most fresh vegetables: high water and sugar content can cause bloating and diarrhea.
- Sugary treats, yogurt drops, and candy.
- Chocolate, caffeine, and alcohol.
- Bread, crackers, and processed human food.
- Corn and corn-based treats: can cause bloat.
- Toxic plants: many houseplants and garden plants are unsafe.
Why Chinchillas Can’t Handle Rich Foods
A chinchilla’s gut relies on beneficial microbes to ferment fiber. Sugary, starchy, or fatty foods feed the wrong microbes, which can produce gas and disrupt digestion. The result can be bloat, diarrhea, or gut stasis, a dangerous slowdown of the digestive tract. That’s why a boring diet is actually a healthy one for chinchillas.
Water
Provide fresh water daily, usually in a glass or metal bottle mounted outside the cage, since chinchillas chew plastic. Check the spout daily for blockages. See water bottle vs bowl.
Chews for Dental Health
Chinchillas need to gnaw to keep their teeth healthy. Offer:
- Kiln-dried apple, willow, or pear wood
- Pumice stones
- Untreated wood blocks
- Hay cubes
Avoid cedar, pine, cherry, and woods from unknown sources.
Changing Foods Safely
If you need to switch pellet brands or hay types, mix the new food with the old over one to two weeks. Sudden changes can upset a chinchilla’s gut.
Signs of Diet Problems
- Small, dry, or misshapen droppings
- Soft droppings or diarrhea
- Bloated belly
- Reduced appetite
- Weight loss or gain
- Drooling, which can signal dental problems
A chinchilla that stops eating or passing droppings needs a vet quickly. See signs your rodent is sick.
Sample Daily Feeding Routine
- Morning: refresh hay and water.
- Evening: offer 1 to 2 tablespoons of pellets, top up hay, and check that yesterday’s hay was eaten.
- A few times a week: offer a single small treat during playtime.
How Chinchilla Diets Compare With Degus and Guinea Pigs
Chinchillas, degus, and guinea pigs all belong to the cavy-like group of rodents, and all need hay-based diets. Guinea pigs, however, need fresh vegetables and daily vitamin C, while degus must avoid sugar because of diabetes risk. See the degu diet and what guinea pigs can eat.
For the rest of your chinchilla’s needs, see our chinchilla care guide.
What Wild Chinchillas Eat
In the Andes, wild chinchillas live on dry, rocky slopes at high altitudes where plant life is sparse. They eat tough grasses, leaves, seeds, bark, and occasionally insects, and they get much of their water from dew and plants. This harsh environment shaped a digestive system that extracts every bit of nutrition from fibrous, low-energy food. When pet chinchillas eat rich foods, their gut simply isn’t equipped to handle them. A diet that mimics their wild menu, heavy on grass hay with limited extras, is the best way to keep them healthy.
Storing Hay and Pellets
Keep hay in a cool, dry, ventilated container, like a cardboard box with holes or a breathable bag, to prevent mold. Store pellets in an airtight container away from heat and light, and use them within their freshness window, since vitamins degrade over time. Throw away any hay or pellets that smell musty or show signs of mold or pests.
Treat Rules to Remember
- Offer treats by hand during bonding time, not in the food bowl.
- Keep portions tiny, about the size of your fingernail.
- Introduce one new treat at a time and watch droppings.
- Skip treats entirely if droppings become soft or small.
- Never let treats replace hay.
Frequently Asked Questions
Can chinchillas eat fruit?
Only tiny amounts of dried fruit occasionally. Fresh fruit is high in water and sugar and can upset their digestion.
Can chinchillas eat vegetables?
Most fresh vegetables are best avoided. Some owners offer tiny amounts of dried greens or herbs instead.
How much hay does a chinchilla need?
Unlimited hay should be available at all times.
Can chinchillas eat nuts?
No. Nuts are too high in fat for chinchillas.