Updated for 2026 — This article has been reviewed and updated with the latest recommendations.
5 Best Guinea Pig Foods in 2026
Guinea pigs have specific dietary needs that differ from rabbits and other small animals. They cannot produce their own vitamin C, so their pellets must be fortified with this essential nutrient. They also need unlimited timothy hay, fresh vegetables, and clean water. Here are the best guinea pig foods in 2026.
Best Guinea Pig Foods Compared
| Food | Type | Vitamin C | Size | Price |
|---|---|---|---|---|
| Oxbow Essentials Adult Guinea Pig | Pellets | Stabilized | 5 lbs | $12 |
| Oxbow Western Timothy Hay | Hay | Natural | 40 oz | $10 |
| KMS Hayloft Timothy Hay | Hay | Natural | 5 lbs | $20 |
| Kaytee Timothy Complete | Pellets | Added | 5 lbs | $10 |
| Sherwood Adult Guinea Pig Food | Pellets | Stabilized | 4.5 lbs | $18 |
1. Oxbow Essentials Adult Guinea Pig Food
Oxbow is the gold standard in small animal nutrition, and their Essentials line for adult guinea pigs delivers exactly what these animals need. The timothy hay-based pellets provide balanced fiber content, and the stabilized vitamin C ensures your guinea pig gets this critical nutrient even if the bag sits in your pantry for a few weeks.
The uniform pellet shape prevents selective feeding, which is a common problem with mixed foods. Guinea pigs given seed mixes tend to pick out the fatty, sugary bits and leave the nutritious pellets behind. Oxbow's single-shape pellets eliminate this issue.
At $12 for 5 pounds, Oxbow costs slightly more than budget brands but the quality of ingredients and vitamin C stability make it worth the premium. Veterinarians consistently recommend Oxbow as their top choice for guinea pig pellets.
2. Oxbow Western Timothy Hay
Timothy hay should make up 80% of your guinea pig's diet. Oxbow's Western Timothy is hand-sorted for quality, with long strands of fragrant hay that guinea pigs find irresistible. The high fiber content supports digestive health and keeps teeth worn down to prevent overgrowth.
At $10 for 40 ounces, Oxbow's hay is pricier than bulk options but more consistent in quality. Every bag contains green, fresh-smelling hay without excessive dust or brown stems. Keep a constant supply in the cage and replace it daily.
3. Sherwood Adult Guinea Pig Food
Sherwood takes a different approach by formulating their pellets without soy, corn, or added sugar. The ingredient list is shorter and cleaner than most competitors, which appeals to owners who want the most natural option. The hay-based pellets include stabilized vitamin C and probiotics for digestive health.
At $18 for 4.5 pounds, Sherwood costs about 50% more than Oxbow. The quality is excellent, and some guinea pig owners report their pets have healthier coats and better digestion on Sherwood food. Whether that premium is worth it depends on your budget and your guinea pig's individual response.
4. Kaytee Timothy Complete
Kaytee's Timothy Complete is the most affordable quality pellet at $10 for 5 pounds. The timothy hay-based formula includes added vitamin C and a uniform pellet shape. While the ingredient list is not as clean as Oxbow or Sherwood, it covers all the nutritional bases for healthy adult guinea pigs.
This is a good choice for budget-conscious owners with multiple guinea pigs. The quality is adequate for daily feeding, and the price makes it the most economical option that still meets nutritional requirements.
5. KMS Hayloft Timothy Hay
KMS Hayloft sources their timothy hay from small farms and delivers it with minimal processing. The result is exceptionally fresh, green hay with a strong, sweet aroma that guinea pigs devour. The hand-packed boxes contain fewer crushed stems and less dust than mass-produced alternatives.
At $20 for 5 pounds, KMS is a premium hay option. The freshness and quality difference is noticeable compared to pet store brands that may have sat on shelves for months. For owners who want the best hay available, KMS delivers a superior product.
Essential Guinea Pig Feeding Guidelines
- Unlimited timothy hay: This is the foundation of a guinea pig's diet and should be available at all times.
- 1/8 cup pellets per day per pig: More than this leads to obesity. Use pellets as a supplement, not the primary food.
- Fresh vegetables daily: Bell peppers, romaine lettuce, and cilantro provide vitamin C and variety.
- Fresh water always available: Change water daily and clean the bottle weekly.
- Avoid seed mixes: Seeds and dried fruit are too high in fat and sugar for guinea pigs.
Final Thoughts
Oxbow Essentials at $12 for 5 pounds is the best guinea pig pellet for most owners. Pair it with unlimited timothy hay (Oxbow or KMS Hayloft) and daily fresh vegetables for a complete diet. Budget shoppers can use Kaytee Timothy Complete at $10 without compromising their guinea pig's health. Always ensure pellets contain stabilized vitamin C, as this nutrient degrades over time.
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