Apple

Hermann's Tortoise

Testudo hermanni

[confidence: high] [source: The Tortoise Table; Tortoise Trust Mediterranean tortoise diet] High sugar; Mediterranean tortoises should receive very limited fruit; apple is a very rare treat at most.

Greek Tortoise

Testudo graeca

[confidence: high] [source: The Tortoise Table plant database; Tortoise Trust diet article for Mediterranean tortoises] High sugar fruit inappropriate for strict Mediterranean herbivore; Greek tortoises should receive very limited fruit, if any.

Leopard Tortoise

Stigmochelys pardalis

[confidence: high] [source: Reptifiles leopard tortoise care; exotic reptile vet review for African grazing species] High sugar fruit; leopard tortoises are grass-heavy grazers that should receive minimal fruit; avoid or extremely rare treat.

Red-eared Slider

Trachemys scripta elegans

[confidence: high] [source: VCA Animal Hospitals red-eared slider diet guide; Reptifiles red-eared slider care] High sugar fruit; acceptable occasional treat for omnivorous red-eared sliders but not a dietary staple.

Red-footed Tortoise

Chelonoidis carbonarius

[confidence: high] [source: Reptifiles red-footed tortoise care guide] High sugar; fruit is part of red-footed tortoise diet but should not exceed 10–20% of total intake; apple is acceptable occasional treat.

Russian Tortoise

Agrionemys horsfieldii

[confidence: high] [source: The Tortoise Table; Tortoise Trust Russian tortoise diet article] High sugar fruit; Russian tortoises are strict herbivores from arid environments and should receive no or very limited fruit.

Sulcata Tortoise

Centrochelys sulcata

[confidence: high] [source: Reptifiles sulcata tortoise care; exotic reptile veterinarian review for African grazing species] High sugar fruit entirely inappropriate for grass-grazing Sulcata tortoise; fruit causes digestive upset and contributes to pyramiding.

Yellow-bellied Slider

Trachemys scripta scripta

[confidence: high] [source: VCA Animal Hospitals turtle diet guide; Reptifiles yellow-bellied slider care] High sugar fruit; acceptable occasional treat for omnivorous yellow-bellied sliders but not a dietary staple.

Painted Turtle

Chrysemys picta

[confidence: high] [source: VCA Animal Hospitals turtle diet guide; Reptifiles painted turtle care] High sugar fruit; acceptable occasional treat for omnivorous painted turtles but not a dietary staple.

Eastern Box Turtle

Terrapene carolina

Good fruit option. Remove seeds (contain trace cyanide). Keep to fruit portion of diet.