While grass is the Guinea Pig’s main natural diet, we supplement their diet with other foods to help keep their food intake well balanced and to provide them with the nutrients and vitamins they need to thrive. Guinea Pigs tend to be finicky when it comes to various fruits and vegetables, but when introduced to the proper foods they will enjoy their food while receiving proper nutrition.

Since Guinea Pigs cannot generate their own vitamin C, therefore they should be supplemented with foods to help them produce the vitamin C they need.  Foods rich in vitamin C include broccoli, apples, cabbage, carrots, celery and spinach.

Guinea Pigs should also always have access to fresh water, fresh grass hay such as timothy hay and food pellets formulated for guinea pigs.

Foods to Avoid

  • Any fruits or vegetables that have been frozen, cooked, tinned, preserved, or otherwise altered
  • Avocado
  • Dairy Products
  • Hot Peppers
  • Iceburg Lettuce (no nutritional value & causes diarrhea)
  • Jams and Jellies
  • Junk food
  • Meat
  • Mushrooms
  • Nuts
  • Potatoes (skin and eyes are poisonous)
  • Raisins
  • Rhubarb


Acceptable Vegetables and Portions:

* = Use no more than twice a week.

  • Alfalfa, radish & clover sproutsguinea-pig-498067_640
  • Basil
  • Beet greens tops*
  • Bell Peppers – all colors (1 slice, remove seeds)
  • Bok choy
  • Broccoli (1 floret & stem)*
  • Brussels Sprouts (1 sprout )
  • Carrot (1 to 2 baby carrots or equivalent)
  • Carrot tops*
  • Celery (2 one inch pieces )
  • Chard – red or green (1 leaf)*
  • Cilantro (6 – 8 stems & leaves)
  • Clover (10 pieces)
  • Collard greens (1 leave)*
  • Cucumber (1 slice – low in nutrition but high in water content)
  • Dandelion greens & flowers – no pesticides (6 large or 10 small)*
  • Endive*
  • Escarole
  • Kale (1 – 2 small leaves)*
  • Mint
  • Mustard greens (1 leaf)*
  • Parsley (6 – 8 stems & leaves)*
  • Pea pods (the flat edible kind)*
  • Peppermint leaves
  • Radichio ( ½ cup )
  • Radish tops (3 leaves)
  • Raspberry leaves
  • Romaine lettuce – no iceberg (2 leaves)
  • Watercress*
  • Wheat grass

Acceptable Fruits:

  • Apple (one small slice with peel, remove seeds)
  • Blueberries
  • Grapes (1 to 2 grapes, must be seedless)
  • Melon
  • Papaya
  • Peach
  • Pear (one small slice with peel, remove seeds and core)
  • Pineapple
  • Plums
  • Raspberries
  • Strawberries
  • Orange (including peel)
  • Tomato (remove tops and seeds)