The following chart is a complete list of safe foods for guinea pigs. In the columns beside, you’ll find the frequency they can be fed and any important notes you should know about each particular food.
Also listed is the Vitamin C and calcium content per 100 grams. Nutrient profiles are sourced from the official USDA Food Database.
Everything is listed in alphabetical order and color-coded so you can easily find what you’re looking for.
Below the food chart, you’ll also find a list of all the foods you should not feed your guinea pig.
Vitamin C is especially crucial for guinea pigs, as they cannot make their own and need to receive 100% of this nutrient from their diet. Vitamin C deficiencies lead to muscle loss, weakness, and an increased risk of illness. You can find the highest vitamin C foods highlighted in violet purple in the list below. Try to include at least one high vitamin C veggie in your guinea pig’s diet daily.
Calcium content is also a crucial component in your guinea pig’s diet. Piggies are prone to bladder stones, so be sure to balance each high calcium food with 2-3 mid to low calcium veggies. The lowest calcium foods in the list below are highlighted in bright turquoise.
Frequency Color Codes:
Green = Almost daily
Yellow = A few times a week
Blue = Once a week
Orange = A few times a month
Red = Rarely
Vitamin C Color Codes:
Violet = High source of Vitamin C
Light Blue = Moderate source of Vitamin C
Mint Green = Low source of Vitamin C
Calcium Color Codes:
Pink: High levels of calcium
Purple: Moderate levels of calcium
Turquoise: Low levels of calcium
|Apples||Once a week||4.6mg||7mg||Remove seeds before feeding|
|Apricot||Once a week||10mg||13mg||High in sugar, feed a thin slice at a time|
|Arugula/Rocket Salad||Once a week||15mg||160mg||High in calcium, contains a hint of Vitamin C|
|Asparagus||Once a week||5.6mg||24mg||Introduce slowly; can cause bloating|
|Banana||A few times a month||8.7mg||5mg||Very high in sugar, feed in small amounts|
|Basil||Once a week||18mg||177mg||High in calcium; feed a few leaves at a time|
|Beet Greens||A few times a month||30mg||117mg||High in oxalates|
|Beetroot||Once a week||4.9mg||16mg||Feed only small amounts|
|Bell Pepper, Green||Daily||80.4mg||10mg||Excellent source of Vitamin C|
|Bell Pepper, Orange||A few times a week||158mg||5mg||Higher in sugar but great source of Vit C|
|Bell Pepper, Red||A few times a week||128mg||7mg||Higher in sugar but great source of Vit C|
|Bell Pepper, Yellow||Daily||184mg||11mg||Best source of Vitamin C for guinea pigs|
|Blackberries||Once a week||21mg||29mg||High in sugar; feed in small quantities|
|Blueberries||Once or twice a week||9.7mg||6mg||High in sugar but rich in antioxidants|
|Bok Choy||Once a week||45mg||105mg||Introduce slowly; can cause bloating|
|Broccoli||Once or twice a week||89.2mg||47mg||Introduce slowly; can cause bloating|
|Brussels Sprouts||Once a week||85mg||42mg||Introduce slowly; can cause bloating|
|Butternut Squash||Once a week||21mg||48mg||Feed a small slice at a time|
|Cabbage – Green||A couple of times a week||36.6mg||40mg||Introduce slowly; can cause bloating|
|Cabbage – Red||A couple of times a week||57mg||45mg||Introduce slowly; can cause bloating|
|Cabbage – Savoy||A couple of times a week||31mg||35mg||Introduce slowly; can cause bloating|
|Cantaloupe/Rockmelon||Once a week||36.7mg||9mg||High in sugar. Remove rind and seeds|
|Carrots||A couple of times a week||5.9mg||33mg||Contains sugar and is high in Vitamin A|
Feed in reasonable quantities
|Carrot Tops||Once a week||Unknown||Unknown||Nutrient-rich and high in calcium,|
exact numbers unknown
|Cauliflower||Once a week||48.2mg||22mg||Introduce slowly; can cause bloating|
|Celery||A couple of times a week||3.1mg||40mg||Safe to feed stalks and leaves.|
|Chamomile Flowers and Leaves||A couple of times a month||Unknown||Unknown||Feed sparingly|
|Cherries – Sweet & Sour||Once a week||7mg||13mg||Remove pit; do not feed leaves or stem|
|Cilantro/Coriander||A couple of times a week||27mg||67mg||Avoid feeding to pregnant or injured pigs|
|Clover||Once a week or less||Unknown||Unknown||High in calcium, feed sparingly|
|Collard Greens||Once a week||35.3mg||232mg||Can be fed to young guinea pigs (under|
4-6 months) more frequently
|Corn on the Cob||A couple of times a month||6.8mg||2mg||Low nutritional value – feed occasionally|
|Corn Husks and Silk||A couple of times a week||Unknown||Unknown||Low nutritional value.|
Discard outer husks if not organic
|Cranberries||Once a week||14mg||8mg||Feed fresh, raw cranberries, not dried!|
|Cucumber||Almost daily||2.8mg||16mg||High water content; safe to feed skin & seeds|
|Dandelion – Leaves, Root, Flower||Once or twice a week||35mg||187mg||Ensure they are pesticide-free!|
|Dill||Once or twice a week||85mg||208mg||Rich in calcium and great source of Vit C|
|Eggplant||Once or twice a month||2.2mg||9mg||Low nutritional value; feed sparingly|
Leaves and unripe eggplants are toxic
|Elderberries||Once or twice a month||36mg||38mg||Large amounts can be toxic; do not feed|
leaves or stem.
|Endive, Belgian/Witloof Chicory||Almost daily||2.8mg||19mg||Small yellowish heads are safe to feed|
regularly, but fairly low in nutrients
|Endive, Curly||A few times a week||6.5mg||52mg||Safe to feed regularly & piggies love it!|
|Escarole||A few times a week||7.1mg||47mg||Safe to feed regularly & piggies love it!|
|Fennel||Once or twice a week||12mg||49mg||Safe to feed bulb and frond|
Green fronds are higher in calcium
|Garden Cress||Once a week||69mg||81mg||Feed small amounts|
|Grapefruit||A few times a month||37mg||15mg||Acidic and sugary, feed sparingly|
|Grapes, Green or Red||Once a week or less||3.2mg||10mg||Sugary and low nutritional value|
|Grass, from outside||Daily||Unknown||Unknown||Pick by hand from untreated lawns only|
|Green Beans||Once or twice a week||12.2mg||37mg||Feed 1-2 beans at a time|
|Guava||Once a week||228mg||18mg||Acidic & sugary but excellent source of Vit C!|
|Honeydew Melon||Once a week||18mg||6mg||Remove seeds; the rind is safe|
|Kale – Green or Red||Once or twice a week||93.4mg||254mg||Very nutrient-rich but high in calcium;|
Great for guinea pigs under 6 months!
|Kiwifruit||Once a week||74.7mg||35mg||High in sugar; feed small quantities|
|Kohlrabi||Once a week||62mg||24mg||Introduce slowly; can cause bloating|
|Lettuce, Boston Butter/Bibbs||Daily||3.7mg||35mg||Feed it along with higher nutrient foods|
|Lettuce, Green Leaf||Daily||9.2mg||36mg||Feed it along with higher nutrient foods|
|Lettuce, Red Leaf||Daily||3.7mg||33mg||Feed it along with higher nutrient foods|
|Lettuce, Romaine||Daily||4mg||33mg||Feed it along with higher nutrient foods|
|Mango||Once a week||36.4mg||11mg||High in sugar; remove the skin and pit|
|Mint Leaves||Once a week||31.8mg||243mg||Peppermint and spearmint leaves are both|
safe to feed
|Mustard Greens||Once a week||70mg||115mg||Nutrient-rich but fairly high in calcium|
|Nectarine||Once a week||5.4mg||6mg||Safe to feed with skin in small quantities|
|Okra||Once a week||23mg||82mg||Contains some calcium and oxalates.|
|Oranges||Once a week||59.1mg||43mg||Acidic & sugary, can also feed peels if organic|
|Oregano||Once a month||2.3mg||1597mg||Dangerously high in calcium; feed in very|
small amounts or not at all.
|Papaya||Once a week||60.9mg||20mg||High in sugar.|
|Parsley, Curly and Flat-Leaf||A couple of times a week||133mg||138mg||Nutrient-rich but relatively high in oxalates|
|Parsnips||Once a week||17mg||36mg||Feed in small amounts; avoid the greens|
|Passionfruit||Once or twice a month||30mg||12mg||High in sugar, phosphorus & acidity|
|Peaches||Once a week||4.1mg||4mg||Safe to feed with skin|
|Pear||Once a week||4.4mg||8mg||Skin is safe but remove the seeds|
|Peas, Snow & Sugar Snap||Once a week||60mg||40mg||High in phosphorus|
|Pineapple||Once a week||47.8mg||13mg||Avoid canned pineapple, skin, leaves & core|
|Plantain||Once or twice a week||20.2mg||2mg||Pick this weed from a pesticide-free area|
|Plum||Once a week||9.5mg||6mg||High in sugar, do not feed the pit. Skin is safe.|
|Pumpkin||Once or twice a month||9mg||21mg||Very high in Vitamin A – feed sparingly|
|Radicchio||A few times a week||8mg||19mg||Bitter-tasting but often popular with piggies!|
|Radish||Once or twice a month||14.8mg||25mg||High in oxalates; feed sparingly|
|Radish Leaves||Once or twice a month||63mg||200mg||High in oxalates; feed sparingly|
|Rapini/Broccoli Raab||Once or twice a month||20.2mg||108mg||High in Vitamin A – Feed sparingly|
|Raspberries||Once a week||26.2mg||25mg||Vitamin-rich – feed up to a couple of berries a|
|Raspberry Plant Leaves||A few times a week||Unknown||Unknown||Ensure the leaves are pesticide-free|
|Spinach||A few times a month||28.1mg||99mg||Extremely high in oxalates, feed sparingly|
|Starfruit||A couple of times a month||34.4mg||3mg||Acidic & sugary; feed sparingly|
|Strawberries||Once or twice a week||58.8mg||16mg||Strawberry tops are also safe|
|Strawberry Plant Leaves||A few times a week||Unknown||Unknown||Ensure the leaves are pesticide-free|
|Sweet Potato/Yam||Once a week||2.4mg||30mg||Offer a thin slice or tiny cube at a time|
|Swiss Chard – All Colors||Once a week||30mg||51mg||High in oxalates – feed small amounts|
|Thyme||1-2 times a month||160mg||405mg||Very high in calcium, offer sparingly|
|Tomatoes – Big or Small||A few times a week||27.2mg||11mg||Acidic. Do not feed leaves, stems, or unripe.|
|Turnip Greens||Once a week||60mg||190mg||High in calcium and oxalates|
|Watercress||Once a week||43mg||120mg||Safe to feed 5-10 stems at a time|
|Watermelon||Once a week||8.1mg||7mg||Safe to feed flesh and rind, remove seeds|
|Wheatgrass/Cat Grass||A few times a week||Unknown||Unknown||Contains a moderate amount of calcium|
|Zucchini/Courgette||Almost daily||17.9mg||16mg||Low in sugar, safe to feed with skin intact|
- Complete List of Fruits for Guinea Pigs
- Complete List of Herbs for Guinea Pigs
- 10 Favorite Foods That All Guinea Pigs Love!
- 10 Foods You Can Feed Your Guinea Pig Daily
Unsafe Foods for Guinea Pigs
- Animal products or by-products (including meat, milk, eggs, cheese, yogurt, ice cream, whipped cream, etc.)
- Dog, cat, or ferret food or treats.
- Rabbit or hamster food.
- Any kind of processed human foods (including cookies, crackers, bread, cereal, french fries, chips, pizza, pasta, etc.)
- Chocolate and candy of all kinds.
- Juice and other human drinks (including fruit juices, coffee, tea, alcohol, etc.)
- Sugary store-bought guinea pig treats such as yogurt drops, honey sticks, and dried fruit.
- Cooked or canned vegetables (feed raw only!)
- Hot Peppers
- Lemons & Limes
- Peanut Butter
- Beans (excluding green beans)
- Iceberg lettuce
- Onions and other plants from the onion family including leeks, chives, shallots, onion grass, and spring onions.
- Potatoes (excluding sweet potatoes)
- Nuts and most seeds are fattening and pose a choking risk.
- Grass or dandelions that have been exposed to herbicides or pesticides
- Lawnmower clippings (they are mixed with oil & can ferment and cause bloat in guinea pigs)
- Eggplant leaves, stems, and unripe eggplants
- Tomato leaves, stems, and unripe tomatoes
- Most plants that grow from a bulb are poisonous, and many houseplants are, too – be sure to keep plants out of your piggy’s reach!
I hope you found these lists helpful for your piggies! The best diet for guinea pigs consists mostly of grass hay, supplemented by high-quality pellets, and up to 1 cup of fresh vegetables daily.
Be sure to introduce all new foods slowly to your guinea pig to give them time to adjust and avoid digestive issues.
Foods that are high in Vitamin C while remaining low in calcium are the best options for guinea pigs. Also, be sure to feed a variety of colored veggies so your piggies get a healthy mix of minerals and antioxidants.
For even more information on guinea pig diets and feeding tips, check out our guinea pig food page.