Leopard Gecko Dietary Basics
Leopard geckos are insectivorous reptiles. Their diet must consist primarily of live insects. Unlike some other reptiles, they do not require plant matter. A balanced diet is crucial for their health, growth, and longevity. This guide covers everything from recommended food items to feeding frequency and essential supplements.
Recommended Food Items
The staple diet for leopard geckos should include gut-loaded and dusted insects. Below are common feeders with their nutritional profiles.
| Insect | Protein (%) | Fat (%) | Calcium:Phosphorus Ratio |
|---|---|---|---|
| Crickets | 20-25% | 6-8% | 1:7 |
| Mealworms | 14-20% | 15-20% | 1:10 |
| Dubia Roaches | 23% | 6% | 1:3 |
| Superworms | 15-20% | 17-20% | 1:12 |
| Waxworms | 14% | 22% | 1:15 |
Gut-loading is feeding insects a nutritious diet before offering them to your gecko. Insects should be fed high-calcium foods like carrots, sweet potatoes, or commercial gut-load diets for 24 hours prior. Dusting involves coating insects with a calcium and vitamin D3 powder immediately before feeding.
Feeding Frequency and Portion Size
Portions vary by age and size. Use this table as a guide.
| Age | Feeding Frequency | Number of Insects per Feeding |
|---|---|---|
| Hatchling (0-4 months) | Daily | 5-7 small crickets or equivalent |
| Juvenile (4-12 months) | Every other day | 6-10 medium insects |
| Adult (12+ months) | Every 3-4 days | 8-12 large insects |
Insects should be no larger than the space between the gecko's eyes to avoid impaction. Feed in the evening when they are most active. Offer as many insects as they can eat in 15-20 minutes, then remove leftovers.
Daily Caloric Needs
Leopard geckos have low metabolic rates. An adult of 40-60 grams requires approximately 30-50 calories per week. Most feeder insects provide 10-20 calories per gram of dry weight. Adjust portions based on body condition: a healthy gecko should have a thick tail (stores fat) but not be overweight.
Essential Nutrients
Protein and Fat
Insect protein is essential for growth and repair. Fat provides energy and supports skin shedding. A varied diet with different insects ensures balanced amino and fatty acids. Avoid high-fat waxworms as a staple; use as treats.
Calcium and Vitamin D3
Leopard geckos require calcium for strong bones and egg production (females). Metabolic bone disease is common without proper supplementation. Dust insects with calcium powder (no D3) at every feeding for adults, and with D3 twice a week for juveniles and breeding females. Phosphorus in insects can bind calcium; a calcium:phosphorus ratio of 2:1 is ideal. Gut-loading with calcium-rich foods helps.
Vitamins and Minerals
A multivitamin supplement once a week provides vitamins A, E, and B complex. Preformed vitamin A is preferred over beta-carotene as geckos may not convert it efficiently. Lack of vitamin A can cause eye and shedding issues.
Harmful Foods and Items to Avoid
Never feed leopard geckos any fruits, vegetables, or human food. Their digestive systems cannot process plant matter. Avoid wild-caught insects (may contain pesticides, parasites) and fireflies (toxic). Also avoid foods high in oxalates or goitrogens. Do not feed dead insects (they dry out and lose nutrition).
Water Requirements
Provide a shallow dish of fresh, chlorine-free water at all times. Change daily. Leopard geckos often drink from water droplets; misting the enclosure can encourage drinking. Ensure humidity levels (40-60%) by misting once daily.
Supplements
Essential supplements include:
- Calcium powder (without D3) for daily use
- Calcium with vitamin D3 (2-3 times per week for adults, more for juveniles)
- Reptile multivitamin powder (once a week)
Some keepers add bee pollen or probiotics, but these are not necessary if diet is balanced.
Age-Specific Feeding Differences
Hatchlings and Juveniles
Need more protein and calcium for growth. Feed daily with insects dusted with calcium+D3 at every feeding. Provide small insects (pinhead crickets, small mealworms). Juveniles can eat larger prey as they grow.
Adults
Feed every 3-4 days. Monitor weight; tail thickness is a good indicator. Reduce portions if tail becomes too plump. Continue calcium supplementation but reduce D3 frequency.
Seniors (5+ years)
May have reduced appetite. Feed soft-bodied insects like waxworms or butterworms in moderation. Ensure easy access to food and water. UVB lighting is not required but can help with vitamin D synthesis if used appropriately.
Signs of Healthy vs. Poor Diet
A healthy leopard gecko has:
- Plump, thick tail (fat storage)
- Clear, bright eyes
- Soft, smooth skin
- Regular shedding (complete sheds)
- Active behavior
Signs of poor nutrition:
- Thin tail or visible ribs (starvation or parasites)
- Bent bones or jaw (metabolic bone disease)
- Eye problems (vitamin A deficiency)
- Stuck shed (low humidity or poor diet)
- Lethargy or weight loss
If you notice these signs, consult a reptile veterinarian. Adjust diet and supplementation accordingly.
Conclusion
A proper diet is the foundation of leopard gecko health. Provide live, gut-loaded, and dusted insects, avoid toxic foods, and adjust feeding frequency for age. With the right nutrition, your gecko can live 15-20 years in captivity. Remember to always research new food items and consult experts when in doubt.