Leopard Gecko Diet Guide: Best Insects, Supplements, and Feeding Schedule

Leopard geckos do best on a varied diet of live insects. Good staple choices include crickets, dubia roaches, and silkworms, with mealworms used commonly as part of the rotation. Superworms and waxworms are usually better as occasional treats rather than everyday staples because they are fattier and can make it easier for a gecko to become selective about food.

Variety matters. Rotating feeder insects helps balance nutrition and keeps many geckos interested in eating. Insects should be commercially raised, not collected outdoors. Wild insects may carry parasites or pesticide residue, and some species can be toxic.

Nutrition is not only about the insect itself. Feeder insects should be gut-loaded before feeding so they contain more usable nutrients. Authoritative reptile care sources also recommend dusting prey with a phosphorus-free calcium powder, and many geckos also need a reptile multivitamin and a calcium product that includes vitamin D3, depending on lighting and husbandry. Because supplement plans vary by age, enclosure setup, and health history, your vet can help tailor the safest routine.

Fresh water should always be available in a shallow dish. Leopard geckos are insectivores, so fruit, vegetables, and most human foods are not appropriate parts of the diet.

A safe feeding amount depends mostly on age, body condition, and activity level. In general, hatchlings and young juveniles are fed daily or every 1-2 days, while adults are often fed 2-3 times per week. A common rule is to offer prey items that are no larger than the width of your gecko's head to reduce the risk of choking or impaction.

Instead of focusing only on a fixed insect count, watch your gecko's body condition over time. Many pet parents start with a short feeding session or a modest number of appropriately sized insects, then adjust with their vet if the gecko is gaining too much weight, losing weight, or leaving food consistently. Adults often do well with several insects per meal, while growing juveniles usually need more frequent access to food.

Supplements also need moderation. Too little calcium or vitamin support can contribute to nutritional disease, but too much supplementation can create problems too. Many reptile care references suggest routine calcium dusting and periodic multivitamin use, with vitamin D3 use adjusted to the gecko's lighting setup and your vet's recommendations.

If your leopard gecko is a poor eater, is breeding, is recovering from illness, or has a history of metabolic bone disease, the safest feeding plan may be different. That is a good time to review the exact schedule, insect rotation, and supplement routine with your vet.

Diet-related problems in leopard geckos can show up gradually. Common warning signs include poor appetite, weight loss, a thinning tail, weak growth in juveniles, trouble shedding, constipation, or visible preference for only fatty treat insects. Some geckos also become overweight from frequent waxworms or oversized meals.

More serious nutrition problems can affect the bones and muscles. Low calcium intake, poor supplementation, or inadequate vitamin D3 and UVB support may contribute to tremors, weakness, a soft or misshapen jaw, bowed limbs, difficulty walking, or fractures. These signs can point to metabolic bone disease and need prompt veterinary attention.

Digestive trouble can also follow feeding mistakes. Oversized prey, dehydration, low enclosure temperatures, or too many hard-bodied insects may contribute to regurgitation, bloating, or infrequent stools. A gecko that stops eating after a husbandry change may be reacting to stress, temperature issues, illness, or pain rather than being "picky."

See your vet promptly if your leopard gecko has not eaten for an unusual length of time, is losing weight, seems weak, has swelling or deformity, or is straining to pass stool. Reptiles often hide illness until they are quite sick, so early changes in appetite and body condition matter.

If your current feeding routine relies heavily on one insect, a safer alternative is usually a better rotation rather than a complete overhaul. Crickets and dubia roaches are common staples, while silkworms can add variety. Mealworms can fit into the plan, but many geckos benefit from not making them the only feeder long term.

If you have been offering waxworms often, consider saving them for occasional use. They are highly palatable, but frequent feeding can encourage food selectivity and excess weight gain. Superworms are also better used thoughtfully, especially for smaller geckos.

If supplementation feels confusing, ask your vet to help you build a simple schedule using a phosphorus-free calcium powder, a calcium product with vitamin D3 when appropriate, and a reptile multivitamin. This is often safer than guessing or switching products often. A shallow dish of plain calcium may also be recommended in some setups.

For pet parents who want a lower-mess routine, buying healthy feeder insects from reputable breeders, gut-loading them before use, and rotating two to four staple species is usually more practical than trying unusual prey items. Avoid wild-caught insects, fireflies, and non-insect foods marketed online without veterinary backing.