Cabbage

Cats need no vegetables, so a little cooked chopped cabbage is at most a novel treat with some fibre.

One chopped teaspoon per serving without reducing main-diet intake.

Remove the hard core, steam or boil until soft, then chop very finely with no seasoning.

Raw cabbage and larger servings bring gas and loose stools, which matters even more for cats; sauerkraut, kimchi and onion-containing slaw must never be fed, so contact a vet immediately if they are eaten.

Very low in calories (about 25 kcal per 100 g) with fibre and vitamin C, so cooked chopped cabbage makes a light fibrous treat.

1-2 tablespoons of chopped cooked cabbage per serving (a teaspoon for a small dog), within about 10% of daily energy intake.

Remove the outer leaves and hard core, steam or boil until soft, then chop; add no salt, oil, butter or sauce.

Raw cabbage and large servings cause gas and loose stools, so cook it and keep portions small, and the same brassica caution applies over the long term. Sauerkraut, kimchi and coleslaw bring salt, oil and onion, so contact a vet if they are eaten.