How much vitamin A should my guinea pig eat?
Vitamin A is an essential nutrient for your guinea pig. It helps with their growth and keeps their eyes, skin, and immune system healthy.
What the Science Says
Science shows that guinea pigs need a consistent source of vitamin A because they can only store a small amount in their liver for a few days. If they don't get enough, they can suffer from weight loss, dry eyes, and respiratory issues within just a few weeks.
Research suggests that the optimal daily amount is likely around 240 µg, though they can stay healthy on a range between 67 µg and 396 µg per day.
Researching Pet Diets
To understand what this means for pet owners, Cavv analyzed 64 different daily fresh-food diets recommended by experts. They calculated the amount of vitamin A in each diet to see what is common in a healthy pet's routine.
Diet Analysis Results
The analysis showed a wide variety in vitamin A levels, largely because some vegetables (like carrots or red peppers) are much higher in vitamin A than others:
| Statistic | Vitamin A (µg) |
|---|---|
| Average | 110.35 |
| Minimum | 19.60 |
| 10th Percentile | 47.71 |
| Lower Quartile | 68.13 |
| Median | 112.90 |
| Upper Quartile | 148.83 |
| 90th Percentile | 176.74 |
| Maximum | 197.00 |
Recommended Daily Amount
A healthy daily intake for an adult guinea pig from fresh foods is 50 µg to 170 µg of vitamin A.
This range covers the 10th to the 90th percentile of expert recommendations. Because it's possible to have too much vitamin A over a long period, aiming for this middle range ensures your pet gets enough to stay healthy without reaching the very high levels found in some diets.
For more details, you can read the full report here: Scientific and Practical Nutritional Guidelines for Pet Guinea Pigs.
