Leopard Gecko Nutrition Guide: Optimal Diet and Feeding Schedule
Everything you need to know about feeding your Leopard Gecko, from dietary requirements and portion sizes to supplements and foods to avoid.
BLUF: Leopard geckos are obligate insectivores that do best on a live-insect diet with strict attention to calcium/phosphorus balance and routine supplementation. Feed hatchlings daily, juveniles daily to every-other-day, and adults 2–3 times per week; gut‑load and dust feeder insects, offer clean water, and consult your veterinarian for individualized supplementation and weight‑management plans.
Dietary requirements by life stage: protein, calcium, and calories
Leopard geckos (Eublepharis macularius) require a high-protein, moderate-fat, low-carbohydrate diet composed almost entirely of animal prey. Nutritional needs change with age:- Hatchling (0–3 months): very high growth demands. Feed multiple times per day; protein intake should be maximized for growth. Aim for daily feedings (2× if possible). Growth phase requires additional calcium and vitamin D support.
- Juvenile (3–12 months): still growing quickly. Feed once daily, occasionally twice if the animal is undersized. Continue frequent supplementation.
- Subadult (12–18 months): slowing growth. Feed every other day or continue once daily until consistently maintaining weight.
- Adult (18+ months): maintenance mode. Feed 2–3 times per week for most adults; increase frequency when females are gravid or actively breeding.
- Protein: 50–65% (primary requirement)
- Fat: 10–30% (varies by insect; excessive fat predisposes to hepatic lipidosis)
- Fiber/carbohydrate: minimal — insects provide small amounts
- Calcium:phosphorus (Ca:P) ratio ideally >1.5:1; many keepers target ~2:1 by dusting feeder insects with calcium powder. Imbalanced Ca:P (low Ca or high P) causes metabolic bone disease (MBD).
- Vitamin D3: required for calcium metabolism. If your gecko receives a reliable low-level UVB source (e.g., 2–5% UVB fluorescent tube for several hours daily), you can reduce dietary vitamin D3 supplementation. Without UVB, dietary D3 (via dusting) is more critical. Both deficiency and excess of vitamin D3 can cause health problems — discuss dosing with your veterinarian.
- Average adult leopard gecko resting metabolic needs are small; they can gain weight quickly if overfed fatty prey like waxworms. Monitor body condition (tail thickness is a good fat storage indicator).
- Provide a shallow, always-available water bowl. Leopard geckos typically drink but will also soak occasionally in a humid hide during shedding.
Best feeder insects, gut‑loading, and supplementation strategy
Leopard geckos prefer live prey but will sometimes accept pre-killed feeders. The most common, safe feeder insects and their general pros/cons:| Feeder insect | Typical protein (dry %) | Typical fat (dry %) | Best use / notes |
|---|---|---|---|
| Crickets | ~55–65% | ~10–20% | Staple feeder; readily accepted by all ages; gut‑load well. |
| Dubia roaches | ~55–65% | ~8–12% | Excellent staple: nutritious, low odor, low escape. Great calcium:phosphorus profile. |
| Mealworms (Tenebrio) | ~45–50% | ~30% | High fat; use sparingly, better for adults as occasional feed. Risk of impaction if substrate is loose. |
| Superworms (Zophobas) | ~45–50% | ~20–35% | High-fat and large; only for larger, adult geckos. Can bite and be aggressive. |
| Waxworms | ~40–50% | ~50–60% | Very high fat — treat only (1–2 per week max). Useful for training or weight gain. |
| Silkworms | ~60–65% | ~8–12% | Excellent lean option; highly digestible; great for juveniles. |
| Hornworms / Calciworms | ~15–25% (wet) | low | High water content, easy to digest, low fat; good occasional feeder. Phoenix/calciworms often have higher Ca content. |
| Black soldier fly larvae (BSFL/Calciworms) | ~35–45% | ~15–25% | High calcium and easy to digest; growing in popularity. |
Dusting (supplement powder application):
- Juveniles/hatchlings: dust feeder insects with a calcium powder (no D3 if you use UVB) at every feeding OR use calcium + D3 2–3×/week if you do not provide UVB. Add a multivitamin dust (A, D, E, trace minerals) 1–2×/week.
- Subadults: dust with calcium (no D3 if using UVB) at 3–5×/week; multivitamin 1–2×/week.
- Adults: dust with calcium (no D3 if using UVB) at 2–5×/week; multivitamin 1×/week. Use calcium + D3 1×/week if no UVB is provided.
Portion sizes, feeding schedules, and practical routines
Practical feeding is guided by age, individual appetite, and body condition. Use prey size rules and adjust frequency by life stage.Prey-size rule:
- Offer prey no larger than the width of the gecko’s head (or roughly the space between the eyes). For tiny hatchlings, use pinhead crickets/BSFL; for adults, use medium-to-large crickets, dubia roaches, or appropriately sized mealworms/superworms.
| Life stage | Age | Frequency | Typical prey per feeding (examples) | Supplement routine |
|---|---|---|---|---|
| Hatchling | 0–3 months | 2×/day | 6–12 pinhead crickets or 8–15 BSFL total/day | Dust every feeding with calcium (if no UVB, include D3 2–3×/week); multivitamin 1–2×/week |
| Juvenile | 3–12 months | 1×/day | 6–12 small crickets or 8–10 silkworms | Dust with calcium at each feeding or at least 3–5×/week; multivitamin 1–2×/week |
| Subadult | 12–18 months | Every other day or 4–5×/week | 6–10 medium crickets/dubia or mixed feeders | Dust calcium 3–5×/week; multivitamin 1×/week |
| Adult | 18+ months | 2–3×/week | 4–8 medium insects per feeding | Dust calcium 2–4×/week; multivitamin 1×/week; limit high-fat insects to treats (waxworms ≤1–2/week) |
- Feeding time: Many leopard geckos are crepuscular/nocturnal — offer food in the evening or under their active lighting schedule.
- Live prey: Remove leftover live insects after 30–60 minutes to prevent stress or injury to your gecko.
- Pre-killed prey: Some geckos accept pre-killed, but live prey more reliably stimulates feeding response.
- Monitor weight weekly for juveniles and monthly for adults. Track tail fat: a thick tail is a sign of healthy fat stores; a thin tail can indicate underfeeding or illness — consult your veterinarian.
- Impaction risk: Avoid small substrate that can be ingested (loose sand or small gravel) during feeding; use paper towel, reptile carpet, or a feeding dish.
Foods to avoid, hazards, and how to spot nutrition-related problems
Unsafe foods and items- Fireflies (lightning bugs): highly toxic to reptiles — NEVER feed.
- Wild-caught insects from pesticide-treated areas: risk of secondary poisoning — avoid.
- Agricultural pests from rodenticide areas or sprayed lawns: dangerous.
- Avocado, dairy, fruits and vegetables: not appropriate as staple foods for insectivores — may cause digestive upset.
- Rodent/pet food (dog/cat food): formulated for omnivores/carnivores and contains inappropriate balance of vitamins/minerals and heat-treated textures — not suitable.
- Small abrasive substrate during feeding: can result in impaction if swallowed with prey.
- Weight loss or a visibly thin tail — implies inadequate calories or illness.
- Lethargy, poor righting reflex, tremors — possible calcium deficiency (MBD) or severe illness.
- Swollen limbs, soft jaw, rubbery bones — signs of advanced metabolic bone disease.
- Chronic constipation or lack of feces for >10–14 days (in an adult) with appetite loss — possible impaction; monitor enclosure temperature first (cold temperatures can slow digestion) and consult your veterinarian.
- Excessive fat deposits, very fat tail — overfeeding or too many fatty feeders (waxworms, mealworms).
- Use a reliable supplement routine and gut‑load all insects.
- Consider low-level UVB (2–5% or appropriate fluorescent) to support vitamin D3 metabolism; it reduces the need for frequent D3 dusting and can improve overall wellbeing. Note: UVB use should be discussed with your veterinarian to balance D3 dosing.
- Maintain correct enclosure temperatures (warm side 88–92°F/31–33°C; cool side 75–80°F/24–27°C); cold temperatures reduce appetite and digestion and increase impaction risk.
- Quarantine new feeders for 24–72 hours to check for mites or parasites; buy feeders from reputable sources.
- If you suspect nutritional deficiency or illness, bring a fresh fecal sample and a recent weight record to your veterinarian.
Key Takeaways
- Feed leopard geckos life-stage‑appropriate live insects: hatchlings 2×/day, juveniles daily, adults 2–3×/week; follow the prey-size rule (no larger than head width).
- Gut‑load feeder insects 24–72 hours and dust with calcium and a multivitamin on a schedule tailored to age and UVB exposure; target a dietary Ca:P >1.5:1 (commonly ~2:1).
- Use insect variety: crickets and dubia roaches as staples; save high‑fat feeders (waxworms, mealworms) for occasional treats.
- Avoid fireflies, wild-caught pesticide-exposed insects, and inappropriate human foods; prevent substrate ingestion during feeding to reduce impaction risk.
- Monitor weight and tail condition regularly and consult your veterinarian for tailored supplementation, suspected metabolic bone disease, or other health concerns.
Frequently Asked Questions
How often should I feed my leopard gecko at different life stages?
Hatchlings should be fed daily, juveniles daily to every other day, and adults about 2–3 times per week, adjusting frequency based on body condition and appetite. Smaller, more frequent meals support growth in young geckos while adults need fewer feedings to avoid obesity. (Long-tail variations: how often to feed a leopard gecko per week, feeding schedule for leopard gecko hatchling)
What insects are best for a leopard gecko and which foods should I avoid?
Feed gut‑loaded, dusted feeder insects such as crickets, dubia roaches, mealworms and occasional superworms, with waxworms as an occasional high‑fat treat. Avoid wild‑caught or pesticide‑exposed insects, fireflies, centipedes and any toxic or spiny prey items that can harm your gecko. (Long-tail variations: is waxworm dangerous for leopard gecko, are wild caught insects safe for leopard gecko)
How should I supplement my leopard gecko with calcium and vitamins?
Regularly gut‑load feeder insects and dust them with calcium; many keepers dust juveniles at most feedings and dust adults several times per week, while offering a reptile multivitamin about once weekly. Because vitamin D3 dosing and Ca:P balance are important and individual needs vary, consult your veterinarian for a tailored supplementation plan. (Long-tail variations: how much calcium does a leopard gecko need, is vitamin D3 dangerous for leopard gecko)
How do I determine appropriate portion sizes and monitor my leopard gecko's weight?
Offer prey no larger than the width of the gecko’s head and adjust quantity by life stage—more prey for growing juveniles, fewer for adults—and track body condition rather than fixed counts. Weigh your gecko regularly (weekly to monthly) to catch weight loss or gain early and consult your vet for a weight‑management plan. (Long-tail variations: how many crickets does a leopard gecko eat per day, what should a leopard gecko weigh)
References & Citations
Parts of this article reference data from allpets.ai.
Reviewed by: AllPets Veterinary Advisory Board on July 2, 2026