What Can Crested Geckos Eat?

Apples are non-toxic to crested geckos and safe as a rare treat, but their inverted calcium-to-phosphorus ratio (~0.5:1) and high sugar content (~10 g/100 g) disqualify them from regular rotation. Offer a few small pieces once or twice a month at most, always alongside a balanced commercial CGD paste.

Banana is non-toxic to crested geckos and can be offered as an infrequent treat, but its heavily skewed calcium-to-phosphorus ratio (≈1:4) and high sugar content mean it should never become a dietary staple. Limit servings to once or twice a month alongside a complete crested gecko diet (CGD) base.

Blueberries are non-toxic and safe for crested geckos as an infrequent treat, but their unfavorable calcium-to-phosphorus ratio (roughly 1:2) means they should never replace a complete crested gecko diet (CGD). Limit offerings to once or twice a month and always pair them with a calcium-dusted staple.

Crickets are a safe, nutritious protein boost for crested geckos when properly gut-loaded and calcium-dusted before feeding. They should supplement — not replace — a complete crested gecko diet (CGD) and be offered no more than 1–2 times per week.

Grapes are non-toxic to crested geckos and can be offered as an infrequent treat, but their poor calcium-to-phosphorus ratio (~1:1.7) and high sugar content (≈16 g/100 g) rule them out as a dietary staple. Limit to once or twice a month alongside calcium-dusted insects and a balanced CGD to prevent metabolic bone disease.

Hornworms are safe and nutritious for crested geckos, delivering high moisture and a favorable calcium-to-phosphorus ratio rarely seen in feeder insects. Offer them no more than once or twice a month — excess water intake from overfeeding causes chronic loose stools and masks true hydration status.

Crested geckos can eat mealworms as an infrequent treat, but their high fat content and heavily phosphorus-skewed mineral ratio (roughly 1:7 Ca:P) make them a poor dietary staple. Limit to small juveniles-safe sizes, gut-load beforehand, and dust with calcium to partially offset the imbalance.

Raspberries are non-toxic to crested geckos and can be offered as an occasional treat, but their high natural sugar content and slightly phosphorus-heavy calcium-to-phosphorus ratio (~0.86:1) mean they should appear on the menu no more than once or twice a month. They must never substitute a complete commercial crested gecko diet (CGD).

Strawberries are non-toxic for crested geckos but their inverted calcium-to-phosphorus ratio and high sugar content make them a special treat at most once or twice a month. Always pair with a calcium-dusted staple diet to offset the phosphorus load.

Superworms are safe for adult crested geckos in strict moderation — no more than once or twice a month — due to their high fat content and heavily imbalanced calcium-to-phosphorus ratio. Juveniles under six months should avoid them entirely until they are large enough to handle the prey safely.

Waxworms are not toxic to crested geckos, but their very high fat content (≈22%) and poor calcium-to-phosphorus ratio make them suitable only as an infrequent treat. Offer no more than 1–2 waxworms once or twice a month to avoid obesity and nutritional imbalance.