About feeding a tortoise
Tortoises are long-lived, slow-metabolising herbivores whose captive diets are very often too rich — too much fruit, too many pellets, not enough coarse fibrous weeds and grasses. Getting the fibre and calcium right prevents the shell and organ problems that plague pet tortoises.
How much should a tortoise eat?
Reptile feeding depends far more on life stage and diet ratio than on a single calorie number. The schedule below shows how the insect-to-plant ratio and feeding frequency change as the animal grows.
| Life stage | Diet ratio & feeding frequency |
|---|---|
| Hatchling / juvenile (under 2 years) | Feed daily — high-calcium greens essential |
| Adult — active season | Feed daily or every other day during active months |
| Pre-hibernation (winding down) | Reduce food 4–6 weeks before hibernation |
What to feed
Most common pet tortoises (Hermann's, Russian, leopard, sulcata) are herbivores that thrive on high-fibre weeds, grasses and leafy greens, with calcium supplementation and limited or no fruit. Grassland species especially need grass and hay, not fruit or protein.
How often to feed
Tortoises are typically fed daily or almost daily on a large volume of low-energy, high-fibre plants — they graze rather than eat rich meals. Feeding rich foods causes fast, lumpy shell growth (pyramiding).
Common feeding mistakes
- Feeding fruit and sugary foods, especially to grassland species.
- Too many pellets or protein, causing shell pyramiding.
- Inadequate calcium, leading to soft shell and bone.
- Low fibre, disrupting the tortoise's gut.
Weight & health
Shell pyramiding, bladder stones and metabolic bone disease all trace back to diet and hydration. A coarse, high-fibre, calcium-rich, low-fruit diet with proper hydration and UVB keeps a tortoise's shell smooth and body sound.
Frequently asked questions
What do tortoises eat?
Mostly high-fibre weeds, grasses and leafy greens with calcium supplementation. Grassland species (Russian, sulcata, leopard) especially need grass and hay; fruit should be limited or avoided.
Can tortoises eat fruit?
Only sparingly, and grassland species are best given none. Sugary fruit disrupts gut flora and contributes to health problems in most common pet tortoises.
How often should I feed a tortoise?
Most are fed daily or almost daily on a large volume of low-energy plants, mimicking natural grazing. Portion by variety and fibre rather than rich meals.
What causes shell pyramiding in tortoises?
Overly rich, high-protein diets, overfeeding and low humidity drive the lumpy, raised scutes called pyramiding. A high-fibre plant diet, correct hydration and UVB keep the shell growing smoothly.