Guinea pigs can’t produce their own vitamin C. Without enough in their diet, they can develop scurvy in as little as 60 days, which makes food choices a big deal.
Bell peppers, broccoli, dandelion greens, and spinach are some of the best natural sources. But pellets fortified with stabilized vitamin C also help fill the gap, especially when fresh produce isn’t available every day.
Your piggy needs 30 to 50 mg of vitamin C per day to stay healthy. Below, we’ve reviewed 10 of the best vitamin C-rich foods to keep your guinea pig in top shape.
Quick Comparison Chart
| # | Product | Our Rating | ||
|---|---|---|---|---|
| 1 |  |
Oxbow Essentials Adult Guinea Pig Food, 5 lb | ★★★★★ | Check Price |
| 2 |  |
Small Pet Select Guinea Pig Food Pellets, 10 lb | ★★★★★ | Check Price |
| 3 |  |
Burgess Excel Tasty Nuggets Guinea Pig Food, 4.4 lb | ★★★★☆ | Check Price |
| 4 |  |
Vitakraft VitaSmart Guinea Pig Food | ★★★★☆ | Check Price |
| 5 |  |
Higgins Sunburst Gourmet Guinea Pig Food | ★★★★☆ | Check Price |
| 6 |  |
Supreme Science Selective Guinea Pig Food | ★★★★☆ | Check Price |
| 7 |  |
Kaytee Timothy Complete Guinea Pig Food, 5 lb | ★★★★☆ | Check Price |
| 8 |  |
Kaytee Food from the Wild Guinea Pig Food, 4 lb | ★★★★☆ | Check Price |
| 9 |  |
F.M. Brown's Tropical Carnival Guinea Pig Food | ★★★★☆ | Check Price |
| 10 |  |
Kaytee Supreme Guinea Pig Food | ★★★★☆ | Check Price |
10 Best Guinea Pig Foods High In Vitamin C Reviewed
We compared pellet foods, gourmet mixes, and fortified blends to find the ones that deliver the most reliable vitamin C per serving. Each pick was evaluated on ingredient quality, fiber content, vitamin C stability, and how well guinea pigs actually eat it.
Most of these are timothy hay-based, which is exactly what adult piggies need for healthy digestion and steady vitamin C intake.
1. Oxbow Essentials Adult Guinea Pig Food, 5 lb
Oxbow Essentials Adult Guinea Pig Food, 5 lb
A timothy hay pellet fortified with stabilized vitamin C and antioxidants for balanced daily nutrition.
Pros
- Stabilized vitamin C won't degrade in storage
- Uniform pellets prevent selective feeding
- High-fiber timothy hay supports digestion
- Immune-boosting antioxidants added to formula
- Made in the USA with quality ingredients
Cons
- Plain pellets may bore picky eaters
- Large bag can lose freshness if unsealed
Oxbow Essentials is the gold standard for guinea pig pellets, and it’s our top pick for good reason. The stabilized vitamin C in the formula doesn’t break down in storage the way many competitors’ does, so your piggy actually gets the advertised amount with every serving.
What really sets Oxbow apart is the uniform pellet design. There’s nothing to pick through, which means your guinea pig can’t selectively eat the tasty bits and skip the nutritious ones.
Pair this with unlimited timothy hay and daily fresh veggies, and you’ve got a complete vitamin C-rich diet covered.
2. Small Pet Select Guinea Pig Food Pellets, 10 lb
Small Pet Select Guinea Pig Food Pellets, 10 lb
Small-batch milled timothy hay pellets from a family-owned company, fortified with every vitamin and mineral piggies need.
Pros
- Small-batch milling keeps pellets extra fresh
- Timothy hay base provides essential fiber
- Fortified with all key vitamins and minerals
- Family-owned company with satisfaction guarantee
- Made in the USA with premium ingredients
Cons
- Only available as plain pellets
- Higher cost than mainstream brands
Small Pet Select takes freshness seriously by milling their pellets in small batches rather than mass-producing months in advance. That matters for vitamin C because the nutrient degrades over time, and fresher pellets mean your piggy gets more of it per serving.
This is a family-owned company that backs every bag with a 100% satisfaction guarantee. The ingredients are straightforward and timothy hay-based, which is exactly what adult guinea pigs need for fiber and digestive health.
It’s a premium option, but the quality speaks for itself.
3. Burgess Excel Tasty Nuggets Guinea Pig Food, 4.4 lb
Burgess Excel Tasty Nuggets Guinea Pig Food, 4.4 lb
High-fiber nuggets with 36% beneficial fibre and protected vitamin C, plus a natural prebiotic for digestive health.
Pros
- 36% fibre content is among the highest available
- Protected vitamin C stays potent longer
- Natural prebiotic supports gut health
- Uniform nuggets prevent selective feeding
- Fortified for healthy eyes, skin, and coat
Cons
- Imported product may be harder to find
- Some piggies need time to adjust to nuggets
The Burgess Excel nuggets stand out because of their 36% fibre content, which is one of the highest you’ll find in any guinea pig food. High fiber is critical for keeping your piggy’s digestive system running smoothly, and it also helps wear down their continuously growing teeth.
What makes these nuggets especially good for vitamin C is the “protected” formulation. The vitamin C in Burgess Excel is coated to resist degradation from light and air, so it stays potent longer than standard fortified pellets.
The added natural prebiotic is a nice bonus for gut health too.
4. Vitakraft VitaSmart Guinea Pig Food
Vitakraft VitaSmart Guinea Pig Food
A complete nutrition blend of pellets, veggies, and grains with extra vitamin C, omega-3s, and antioxidants for immune support.
Pros
- Mix of pellets, veggies, and grains adds variety
- Extra vitamin C formulated specifically for piggies
- Omega-3s and antioxidants boost immune health
- Varied textures help maintain dental health
- Available in 4 lb and 8 lb bags
Cons
- Mixed blend can encourage selective feeding
- Some fillers aren't as nutritious as pellets
- Grains add calories that sedentary pigs don't need
If your guinea pig turns its nose up at plain pellets, VitaSmart’s colorful blend of pellets, veggies, and grains might be the answer. Vitakraft formulates this food with extra vitamin C specifically for guinea pigs, along with omega-3 fatty acids and antioxidants that support immune function.
The varied textures in this mix also help with dental health, since the different shapes and hardness levels encourage natural chewing. The trade-off is that picky piggies might pick out the tastiest pieces and leave the nutritious pellets behind, so keep an eye on what’s left in the bowl.
5. Higgins Sunburst Gourmet Guinea Pig Food
Higgins Sunburst Gourmet Guinea Pig Food
A gourmet food mix packed with fruits, vegetables, seeds, and grains, enriched with DHA omega fatty acids and digestive probiotics.
Pros
- DHA omega fatty acids support brain health
- Digestive probiotics promote healthy gut flora
- Wholesome fruits and vegetables in every scoop
- Seeds and grains add satisfying texture variety
- Piggies love the gourmet flavor profile
Cons
- Sugary fruit pieces can cause selective feeding
- Higher calorie count than plain pellet foods
Higgins Sunburst is the food guinea pigs get excited about. The mix includes real fruits, vegetables, seeds, grains, nuts, and legumes, creating a gourmet-level variety that most piggies can’t resist.
It’s also enriched with DHA omega fatty acids for brain and coat health.
The digestive probiotics in this blend help your piggy absorb more nutrients from every serving, which means they’re getting more out of the vitamin C that’s included. Just be aware that the colorful fruit pieces can lead to selective feeding, so you may want to mix it with plain pellets to keep nutrition balanced.
6. Supreme Science Selective Guinea Pig Food
Supreme Science Selective Guinea Pig Food
A nutritionally balanced food with zero added sugar, no artificial colors, and natural ingredients that promote healthy skin and coat.
Pros
- Zero added sugar prevents obesity and dental issues
- No artificial colors or preservatives
- Rich in natural ingredients for balanced nutrition
- Uniform shape prevents selective feeding
- Supports healthy skin and glossy coat
Cons
- Plain appearance may not excite picky eaters
- Smaller bag size compared to competitors
- Alfalfa base isn't ideal for all adult piggies
Supreme Science Selective is the go-to if you’re worried about sugar and artificial junk in your piggy’s food. It contains zero added sugar and no artificial colors, which makes it one of the cleanest options on the market.
The vitamin C content is solid, and the uniform nugget shape prevents selective feeding.
This food also promotes healthy skin and a glossy coat thanks to its natural ingredient profile. The one thing to note is that it uses an alfalfa base, which is higher in calcium than timothy hay.
That’s fine for younger piggies but something to watch with older adults who are prone to bladder stones.
7. Kaytee Timothy Complete Guinea Pig Food, 5 lb
Kaytee Timothy Complete Guinea Pig Food, 5 lb
A pure timothy hay pellet with prebiotics, probiotics, and long-lasting vitamin C for digestive and immune support.
Pros
- Pure timothy hay base, naturally high fiber
- Prebiotics and probiotics aid digestion
- Long-lasting vitamin C stays potent
- No loose seeds or sugary fruit pieces
- Trusted brand with over 150 years of history
Cons
- Plain pellets won't excite picky eaters
- Pellets can crumble at bag bottom
- Vitamin C levels lower than top-ranked options
Kaytee Timothy Complete packs a lot of immune support into a simple formula. The prebiotics and probiotics keep your piggy’s gut in good shape, while the long-lasting vitamin C provides steady daily support.
Because it’s a pure pellet with no loose seeds or fruit pieces, your guinea pig can’t selectively eat the “fun” bits and skip the nutritious ones. That means they’re getting complete nutrition with every serving.
This is one of the most widely available guinea pig foods, so you won’t have trouble finding it at local pet stores or online. The vitamin C levels aren’t quite as high as our top three picks, but the long-lasting formula means less potency is lost during storage.
8. Kaytee Food from the Wild Guinea Pig Food, 4 lb
Kaytee Food from the Wild Guinea Pig Food, 4 lb
A nature-inspired blend with unique shapes and no added molasses, fillers, or artificial preservatives for clean daily nutrition.
Pros
- Affordable with no added molasses or fillers
- Nature-inspired shapes encourage foraging
- No artificial preservatives or colors
- Unique ridges support dental health
- Easy to find at most retail stores
Cons
- Mixed pieces encourage selective feeding
- Lower vitamin C concentration than premium brands
- Smaller 4 lb bag won't last long
Kaytee Food from the Wild is a solid budget pick that doesn’t cut corners on ingredient quality. There’s no added molasses, no fillers, and no artificial preservatives, which gives it a cleaner profile than many similarly priced options.
The nature-inspired shapes and ridges encourage foraging behavior and help keep teeth worn down.
The vitamin C concentration isn’t as high as premium options like Oxbow or Small Pet Select, so you’ll want to supplement with fresh bell peppers or leafy greens daily. But for the price, it’s a solid everyday food with a cleaner ingredient list than you’d expect.
9. F.M. Brown’s Tropical Carnival Guinea Pig Food
F.M. Brown's Tropical Carnival Guinea Pig Food
A vitamin-fortified blend with stabilized vitamin C, added probiotics, timothy hay, and ZOO-VITAL biscuits for healthy teeth and gums.
Pros
- ZOO-VITAL biscuits promote healthy teeth and gums
- Stabilized vitamin C supports immune system
- Added probiotics improve nutrient absorption
- Timothy hay and alfalfa pellets boost fiber
- Colorful mix appeals to most guinea pigs
Cons
- Sweet fruit pieces can cause weight gain
- Lots of variety makes selective feeding easy
- Biscuits are high-calorie compared to plain pellets
F.M. Brown’s Tropical Carnival earns a spot on this list thanks to its unique ZOO-VITAL biscuits, which are specifically designed to keep your guinea pig’s teeth and gums healthy.
Guinea pig teeth never stop growing, so having a food that encourages grinding and chewing is a real benefit. The stabilized vitamin C holds up well over time too.
The added probiotics help your piggy absorb more nutrients from every serving, and the blend of timothy hay and alfalfa pellets delivers solid fiber content. The downside is that the sweet fruit pieces and biscuits make it easy for guinea pigs to pick favorites and ignore the healthier components.
10. Kaytee Supreme Guinea Pig Food
Kaytee Supreme Guinea Pig Food
A naturally preserved formula with natural seeds, grains, and long-lasting vitamin C, free from artificial colors and flavors.
Pros
- No artificial colors or flavors added
- Long-lasting vitamin C releases over time
- Natural seeds and grains for wholesome nutrition
- Naturally preserved for extended shelf freshness
- Trusted brand with a loyal owner following
Cons
- Seed-based mix isn't as balanced as pellets
- Less vitamin C per serving than fortified pellets
- Large 10 lb bag can go stale without resealing
Kaytee Supreme rounds out our list with a clean, natural approach to guinea pig nutrition. There are no artificial colors or flavors here, and the vitamin C is formulated to release slowly over time so your piggy gets a steady supply rather than one big dose.
The natural preservation method also helps the food stay fresh longer on the shelf.
The seed and grain base gives this food a more natural look and feel that many guinea pigs enjoy. However, it’s not as nutritionally balanced as a pure timothy hay pellet, and the vitamin C per serving is lower than our top picks.
If you go with this one, make sure to supplement with plenty of fresh vegetables high in vitamin C like bell peppers and broccoli.
What Happens if a Guinea Pig Doesn’t Get Enough Vitamin C?
Guinea pigs can’t produce their own vitamin C, just like humans. If they don’t get enough through food, they can develop scurvy, which causes painful joint swelling, bleeding gums, and loss of appetite.
Scurvy can become fatal if it isn’t caught and treated quickly.
The early signs include lethargy, rough coat, and reluctance to move. If you notice these symptoms, increase fresh vegetables immediately and talk to your vet about adding a vitamin C supplement like Oxbow’s GTN-50C tablets.
What Are the Best Natural Sources of Vitamin C for Guinea Pigs?
Fresh green vegetables are the single best natural source. Bell peppers (especially red and yellow), broccoli, kale, spinach, dandelion greens, and turnip greens all contain high amounts of vitamin C along with other essential nutrients.
You can also use human chewable 100 mg vitamin C tablets (not multivitamins) or liquid vitamin C as a supplement. Most liquid vitamin C products contain 250 mg per teaspoon, so only 1/2 teaspoon per day is enough to meet your guinea pig’s needs.
How Much Vitamin C Does a Guinea Pig Need Daily?
Most healthy adult guinea pigs need between 30 and 50 mg of vitamin C per day. Pregnant sows and sick piggies may need closer to 100 mg or more, since their bodies use it up faster during stress and recovery.
The good news is that excess vitamin C doesn’t build up in the body. It’s water-soluble, so any extra gets flushed out through urine.
That means there’s very little risk of overdoing it, and it’s always better to give a bit more than not enough.
Final Thoughts
Most guinea pig pellets lose a significant chunk of their vitamin C before the bag is even opened. The nutrient degrades during storage, so the number on the label rarely matches what your piggy actually absorbs.
That’s what makes Oxbow Essentials worth the price. Its stabilized vitamin C holds up in the bag, so your guinea pig gets the full dose you’re paying for.
Pair it with daily fresh bell peppers, broccoli, or leafy greens for vitamin C in a form that’s even easier for their body to absorb.
Guinea pigs can’t produce vitamin C on their own, so a deficiency hits them fast. Scurvy symptoms like swollen joints, bleeding gums, and lethargy can show up within just a few weeks of an inadequate diet.
A quality pellet from this list plus unlimited timothy hay and a rotating mix of fresh vegetables is the simplest three-part approach to keeping your piggy’s nutrition covered.
