Leopard Gecko Feeding Schedule: How Often, What Size, and When to Worry

Leopard geckos are more willing feeders than most reptiles — strike response is reliable, they rarely go on extended fasts without reason, and they tell you quickly when something is wrong. The feeding schedule for leos is one of the simpler aspects of their care, but the supplement protocol trips up a lot of new keepers.

Here's everything you need.

Feeding Frequency by Age

Young geckos are building bone and muscle rapidly. Hatchlings genuinely need daily feeding to support proper growth. An adult leopard gecko eating 2-3 times per week is receiving more than enough food — overfeeding adults leads to obesity, fatty liver disease, and shortened lifespan.

How to Tell if You're Feeding the Right Amount

A healthy adult leopard gecko should have:

• A moderately thick tail (fat is stored in the tail — it should look round, not skeletal, but not grotesquely swollen)
• Visible hip bones when viewed from above (appropriate leanness)
• No visible spine ridges (underweight indicator)
• Active hunting behavior at feeding time

If the tail is extremely bulbous or the gecko has fat deposits visible behind the head, reduce feeding frequency. If the tail is thin or you can see the spine clearly, increase frequency temporarily.

Prey Size Guide

The standard rule: no larger than the distance between the gecko's eyes.

How many insects per feeding?

• Juveniles: 5-10 appropriately-sized insects per session
• Adults: 5-8 insects per session, 2-3 times per week

Feed until the gecko shows disinterest — slowing down, walking away from prey. Don't leave live crickets in the enclosure overnight; they can bite sleeping geckos.

Feeder Options: Nutrition Comparison

The ideal rotation: Primary staple (dubia or crickets) 80% of meals, rotating secondary (BSFL, hornworms) 15%, treats (waxworms) 5%.

Gut-Loading: The Hidden Variable

Feeder insects are only as nutritious as what they've eaten. Crickets purchased from a pet store and fed immediately have minimal nutritional value. Gut-loading — feeding your feeders nutritious food for 24-48 hours before offering them to your gecko — dramatically increases their value.

What to gut-load with:

• Leafy greens (collard greens, dandelion leaves, kale)
• Squash, sweet potato, carrot
• Commercial gut-load products (Bug Burger, Repashy Bug Burger)
• Avoid citrus, spinach, and iceberg lettuce

What not to use: Cat or dog food as a gut-load base — the protein density and fat content creates a poor nutritional profile for your gecko.

Supplement Schedule

This is where most leopard gecko keepers either over-supplement (causing vitamin toxicity) or under-supplement (causing deficiencies). Here's the correct protocol:

How to dust: Place a few insects in a small plastic bag or container with a pinch of supplement powder, shake gently until insects are lightly coated, then offer immediately. A "light dusting" looks like frosted, not snowed-on.

D3 overdose is real. Vitamin D3 is fat-soluble and accumulates in tissue. Too frequent D3 supplementation causes hypercalcemia — excess calcium deposits in organs, kidney damage, and death. Follow the "every 10-14 days" guideline for adults and don't use D3-containing supplements more than recommended.

The calcium dish: Place a small bottle cap or shallow dish of pure calcium carbonate powder (no D3) in the enclosure permanently. Geckos will lick it when they feel they need it. This self-regulation is the safest form of calcium supplementation and prevents both deficiency and overdose.

Troubleshooting: Why Your Gecko Won't Eat

In Shed

The gecko's eyesight is impaired during the pre-shed "blue phase" (eyes look cloudy). It will usually refuse food until after the shed is complete. This is normal — skip feedings and resume 24 hours after shed.

Temperature Issues

If the warm side of the enclosure is below 85-88°F, the gecko can't digest food properly. Before assuming there's a health problem, verify temperature at the basking surface with a digital probe thermometer.

Post-Purchase Adjustment

New geckos often refuse food for 1-2 weeks while settling in. Give them a dark hide, minimal handling, and offer food every other day. Don't force interaction. Most new geckos begin eating by the end of the second week.

Winter Slowdown

Many leopard geckos naturally reduce food intake in late fall and winter, mimicking their natural seasonal cycle. This is most pronounced in geckos kept near windows where natural light cycles affect them. Reducing feeding frequency in winter (2 times per week for adults) is fine.

When to See a Vet

• Juvenile hasn't eaten in 3+ weeks despite proper setup
• Adult has lost significant tail mass (thin, wrinkled tail)
• Food refusal accompanied by lethargy, unusual posture, or discharge
• History of previous illness

A stool sample check for parasites is worth doing annually for any leopard gecko fed live insects — pinworms are common in cricket-raised geckos and can suppress appetite.

Feeding Log

Tracking meals takes 30 seconds and saves significant worry:

Date | Feeder | # offered | # eaten | Supplement | Notes
2026-04-09 | Dubia M | 6 | 6 | Calcium | Ate eagerly
2026-04-13 | Crickets L | 5 | 3 | — | Left 2, picked them out
2026-04-16 | BSFL | 8 | 8 | Multivit | In pre-shed, ate anyway

A 3-month log gives you clear data on your gecko's seasonal patterns, preference cycles, and baseline appetite — making deviations much easier to spot.