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Yes, mice can eat cauliflower as an occasional extra. A piece of washed raw floret about the size of your little fingernail, two or three times a week, is plenty. It is safe and low in sugar, but darker greens such as broccoli and kale are what the RSPCA recommends day to day, so keep cauliflower as a change rather than the main vegetable.
| Safe? | Yes, as an extra |
| How much | A piece about 1 cm (½ in) across per mouse |
| How often | Two or three times a week |
| Best served | Raw or plainly steamed and cooled, chopped small |
| Watch out for | Cheese sauce, butter, salt, soft droppings |
Is cauliflower safe for mice?
Yes. None of the mouse sources we read names cauliflower, so this verdict is our reasoning from what they do say. RSPCA Australia tells owners to give mice dark greens and non-starchy vegetables. Cauliflower is non-starchy and low in sugar, and it is the same plant family as broccoli, which Supreme Petfoods lists as an everyday food for mice. Supreme also lists cauliflower as an everyday food for hamsters, and Unusual Pet Vets, an exotic pet practice, puts it on its everyday vegetable list for rats, the mouse's close cousin. Nothing in it appears on any of the "never feed" lists, which name foods such as onions, garlic, raw potato, rhubarb and citrus.
The reason we call it a weekly food rather than a daily one is that it is pale. The RSPCA's advice points to dark greens, and cauliflower adds less than broccoli or kale for the same space in a small mouse's diet.
How much cauliflower can a mouse have?
Woodgreen puts a mouse's dry food at about 5 g (0.2 oz) a day, around one level teaspoon. Both RSPCAs say fresh food belongs inside that daily allowance, not on top of it, and PetMD keeps everything other than the main food under 10% of what a mouse eats. So a piece of floret about 1 cm (½ in) across, two or three times a week, is enough. On other days, use the fresh-food space for darker greens.
How to prepare cauliflower for mice
- Wash it. Rinse a floret under cold running water.
- Cut it small. Trim a piece about 1 cm (½ in) across for each mouse.
- Raw or steamed. Raw is fine. Steamed is fine too if it is plain and fully cooled.
- Serve with the day's food. Scatter it in with the dry mix so the mice forage for it.
- Clear up. PetMD says to remove uneaten fresh food within 10 hours.
Florets, leaves, stalks and cooked cauliflower
- Florets: the part to feed.
- Green outer leaves: our sources do not cover them, but they are a leafy green from the same plant, so in our view a small torn piece is a good, slightly more useful swap.
- Thick core: very hard and not much use. Leave it out.
- Cauliflower cheese, roasted or seasoned cauliflower: no. Cheese, butter, oil, salt and spices are not mouse food, and PetMD warns that high-fat foods cause digestive upset.
- Purple, orange and romanesco cauliflower: the same plant, served the same way.
Which mice should skip cauliflower?
Hold off while a mouse has soft droppings, and wait until a new mouse is settled on its usual food. Introduce it in a crumb first and wait a day before giving more. If loose droppings appear, stop fresh food and check our pet mouse health guide.
What else can mice eat instead?
Better daily options are broccoli and kale, and darker-leaved cabbage works a few times a week. See what can mice eat for the full list, our pet mouse diet guide for the bigger picture, and our pet mouse care guide for everything else.
Cauliflower questions
Can mice eat raw cauliflower?
Yes. Raw, washed cauliflower chopped into a piece about 1 cm (½ in) across is the simplest way to serve it. It is crunchy, which mice enjoy, and needs no preparation beyond washing and cutting.
Can mice eat cauliflower leaves?
Our sources do not cover cauliflower leaves directly. They are a green leaf from the same plant as the florets, and RSPCA Australia recommends dark greens for mice, so in our view a small torn piece of the outer leaf is fine and a bit more useful than the white floret.
Is cauliflower or broccoli better for mice?
Broccoli. Supreme Petfoods lists broccoli as an everyday food for mice and RSPCA Australia names it among the greens to offer. Cauliflower is safe, but it is pale and adds less, so we keep it to a few times a week.
Can mice eat cauliflower cheese?
No. The cheese sauce is fatty and salty and is usually made with butter and milk. PetMD warns that high-fat foods cause digestive upset in mice. Give plain cauliflower instead.
