Vitamin C is one of the most important nutrients in a guinea pig’s diet. Unlike many other animals, guinea pigs cannot produce their own Vitamin C and must obtain it from food or supplementation every day.
Providing adequate Vitamin C helps support healthy skin, gums, joints, immune function, and overall wellbeing.
Why Guinea Pigs Need Vitamin C
Guinea pigs are unable to manufacture Vitamin C naturally and require daily dietary supplementation.
Signs of Vitamin C deficiency (Scurvy) may include:
- Rough or poor-quality hair coat
- Delayed wound healing
- Brown discoloration of the teeth
- Swollen or bleeding gums
- Weakness
- In severe cases, death
Research also suggests that guinea pigs may benefit from additional Vitamin C during periods of stress.
Stressful situations may include:
- Changes in household routine
- Travel
- Veterinary visits
- Introduction to a new environment
Excess Vitamin C is generally excreted in the urine rather than stored by the body.
Long-term supplementation exceeding 100 mg per day should only be provided under veterinary guidance.
Vitamin C Supplements
GTN-50C is a chewable stabilized Vitamin C supplement formulated for small animals.
Each tablet provides:
50 mg of Vitamin C
Helping Your Guinea Pig Accept Vitamin C
Some guinea pigs may not immediately recognize a Vitamin C tablet as food.
Patience and consistency are important when introducing new supplements.
Several methods may encourage acceptance.
Break the Tablet
Break the tablet in half to release its aroma.
Leave the broken tablet near your guinea pig or offer it by hand.
Wrap It in Lettuce
Crush or break the tablet and wrap it inside a piece of romaine lettuce.
Hide It in Fruit or Vegetables
Make a small groove in foods such as:
- Apple
- Grape
- Carrot
Insert the tablet into the groove so it absorbs some of the natural juices.
Syringe Feeding
When medically necessary, a crushed tablet may be mixed with:
1 tablespoon of water
The mixture can then be administered immediately using a feeding syringe.
Foods Naturally High in Vitamin C
Many fresh vegetables and fruits provide excellent sources of Vitamin C.
Excellent Choices
- Guava
- Red bell peppers
- Tendergreen
- Kiwi
- Green peppers
Good Choices
- Kale
- Parsley
- Broccoli
- Broccoli florets
- Broccoli leaves
- Broccoli stalks
- Lambsquarter
- Mustard greens
- Cooked broccoli
- Cooked Brussels sprouts
- Kohlrabi
- Papaya
- Snap peas
- Turnip greens
- Red cabbage
- Orange
- Cooked kale
- Peas
- Clementines
- Cantaloupe
- Pineapple
Fair Choices
- Lemon
- Starfruit (Carambola)
Poor Choices
The guide identifies the following as poor sources of Vitamin C for guinea pigs:
- Dill weed
- Dried tarragon
- Dried basil
- Dried oregano
- Dried cilantro
- Chinese cabbage (Pak Choi/Bok Choi)
- Beet greens
- Collard greens
- Watercress
- Grapefruit
The food chart also provides approximate serving amounts needed to supply 25 mg of Vitamin C per day for many common fruits and vegetables.
Daily Vitamin C Matters
Providing a consistent daily source of Vitamin C helps support:
- Healthy gums
- Healthy teeth
- Proper wound healing
- Normal immune function
- Healthy skin and coat
- Overall wellness
Introducing supplements gradually and offering Vitamin C-rich vegetables can help ensure your guinea pig receives this essential nutrient every day.
