The toxic list for a Rex
A Rex rabbit's velvet coat is famous, but her toxic list is the standard rabbit one, and it is absolute. Rhubarb, avocado, chocolate, and potato plants, peelings, and green parts are unsafe, and so are onions, garlic, leeks, and chives. Apple seeds and the pits of peaches, cherries, and plums should be removed before fruit is served, or the fruit skipped. Houseplant leaves, garden ornamentals such as foxglove and yew, and unidentified wild greens all belong out of her reach, including during garden exercise time when a Rex will sample along a border.
Chocolate deserves a specific household rule in homes where she free-roams: keep it in closed cupboards, because a rabbit who finds a dropped piece will eat it without hesitation.
Calorie traps a plush coat conceals
The Rex coat is so dense and upright that a rabbit can gain noticeable weight before it shows, which makes the unsuitable-but-not-toxic list a genuine health issue for this breed. Bread, crackers, pasta, breakfast cereal, corn, peas, and beans are starchy fillers that ferment in her gut and substitute for hay. Yogurt drops, honey sticks, and colored treat nuggets add sugar while teaching her to wait out plain food in favor of sweets.
Weigh a Rex weekly and judge her condition by hand — ribs felt easily under light pressure, with the plush coat smoothed down — rather than by eye. Treats should stay at a small piece of fruit or a favorite herb a few times a week, however hopefully she presents herself at the pen door.
Mixes, lettuce, and the hay connection
Muesli mixes fail a Rex the same way they fail other rabbits, only faster, because a food-motivated rabbit extracts the starchy, sweet components and leaves the fiber behind. A plain pellet, measured against her actual weight rather than the size of her bowl, keeps the ration honest. Iceberg lettuce can loosen her droppings; romaine, spring greens, cilantro, and other sturdy leafy greens, introduced gradually, are the better daily bowl.
Hay intake is the thread connecting all of this. Every unsafe or unsuitable food on the list does part of its damage by reducing the hay she eats, and hay is what wears her teeth and keeps her gut moving. If her hay consumption drops while her treat consumption holds steady, the diet — not the rabbit — needs correcting first.
When to involve a vet
Contact a vet the same day if she eats rhubarb, avocado, chocolate, onion-family foods, or an unknown plant, and act urgently if she stops eating, her droppings dwindle or stop, or she sits hunched and quiet with tooth grinding. A recurring dirty bottom, steady weight gain despite measured pellets, or Rex feet developing sore, thinning hocks should also prompt a visit, since excess weight worsens pressure on those delicate feet.
On warm days, offer greens as a rinsed handful eaten in the open rather than leaving them wilting in the pen, since a Rex returning later will eat spoiled leaves without pausing.
Her weigh-ins and rations are easiest to keep honest when they are shared, and KinsLe Care Teams does that by assigning her hay, pellet, and greens jobs and logging each one with a timestamp for the whole household.