Can tortoises eat plums?
Plums are best left off a tortoise's menu. They are far sweeter and more acidic than the weeds and leafy greens a tortoise's digestion is built around, the stone should never be offered at all, and there is nothing a plum provides that a proper tortoise diet does not already cover better.
Picked for your pet
Tortoise Feeding Kit
Komodo tortoise salad mix, hay cakes, a flower treat bar and calcium supplement for a balanced tortoise diet.
£20.49
Pettex Reptile Tortoise
Calcium-added tortoise substrate, 10 litres, for arid-habitat tortoises and lizards
£9.99
Komodo Tortoise Eco Terrain
Soil and sand substrate for arid tortoises, deep enough to burrow in, 10 litres
£9.99
Komodo Tortoise Leaf Mix
A 100G dried botanical leaf mix as a complementary treat for tortoises and other reptiles
£5.29
Why plums are not a good fit
Most pet tortoises are herbivorous grazers with a digestive system suited to a high-fibre, low-sugar diet of weeds, leaves and flowers, not sweet fruit. Plums carry considerably more natural sugar and acidity than is good for this kind of gut, and fruit in general is far removed from what a tortoise would naturally graze on in the wild.
Feeding sugary fruit regularly can upset a tortoise's gut bacteria and contribute to digestive problems over time, which matters more for a slow-growing reptile than a quick treat might suggest. This is a case where a food is not toxic outright, but it genuinely does not belong in a tortoise's regular diet.
The stone is a separate, more serious problem
The stone at the centre of a plum should never be offered to a tortoise. Stone fruit pits, plums included, can contain compounds that are genuinely harmful if chewed or broken into, quite apart from the choking and digestive obstruction risk a hard stone presents to any animal that might try to eat it.
If a tortoise has managed to get hold of a plum with the stone still present, remove it immediately and do not assume a small taste is harmless simply because the fruit itself is not classed as an emergency-level toxin. It is a genuinely easy thing to overlook if a plum has fallen from a garden tree onto an outdoor enclosure, so it is worth checking the ground regularly during fruiting season.
What to feed instead
A tortoise's diet is much better served by weeds and leafy greens appropriate to the species, which provide the fibre and calcium balance their digestion actually needs. A specially formulated tortoise food is a genuinely useful way to fill any gaps, particularly where fresh, appropriate forage is not always available year-round.
If you want to offer some variety, look at what is genuinely recommended for your tortoise's specific species rather than reaching for whatever fruit is in the kitchen, since dietary needs vary more between tortoise species than many owners expect.
When to get advice
See a vet experienced with reptiles if your tortoise seems off their food, lethargic, or shows any change in their droppings after eating something they should not have. Sugary or unsuitable food eaten in any quantity is worth mentioning even if your tortoise seems fine at first.
A vet can also advise properly on your tortoise's specific dietary needs, which is worth doing early on rather than piecing together a diet from general advice that may not fit your particular species and its own requirements.
More for your pet
Things we stock that owners commonly reach for here. Nothing on this page depends on you buying one.
Komodo Tortoise Fruit Mix
A fruit-based treat mix for tortoises, made from dandelion, aronia berries, strawberry and redcurrants
£5.29
Komodo Tortoise Food Salad Mix
A complete holistic tortoise diet flavoured to taste like fresh salad
£7.29
Komodo Tortoise Food Cucumber
A complete holistic tortoise diet in cucumber flavour, high in fibre
£7.29
Common questions
- Are plums poisonous to tortoises?
- Not in the sense of an immediate toxic emergency, but they are unsuitable as a regular or even occasional food, since they carry far more sugar and acidity than a tortoise's herbivorous digestion is built to handle. The stone should never be offered at all.
- What should I do if my tortoise ate a plum stone?
- Remove any remaining stone straight away and watch your tortoise closely for any change in behaviour, appetite or droppings. If you have any concern at all, contact a vet experienced with reptiles rather than waiting to see what happens.
- Can tortoises have any fruit at all?
- Fruit is generally something to offer only very occasionally, if at all, and this varies by species. Weeds and leafy greens should always make up the bulk of the diet, and it is worth checking what is genuinely appropriate for your specific tortoise rather than assuming all fruit is equally fine.
- Why is sugar such a problem for tortoises specifically?
- A tortoise's gut is adapted to a high-fibre, low-sugar diet of weeds and leaves, and regularly introducing sugary food can disrupt their digestive bacteria and overall gut health. This matters more for a tortoise than for many other pets given how slowly their digestion and metabolism work.
Related
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Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.
Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.