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Why is my leopard gecko not eating and limping? Could it be MBD?

Updated On September 23rd, 2025

Mushu stopped eating mealworms one day suddenly, and wouldn’t eat for a few days. I had dusted his food a few times with calcium without d3 for the last month but not very much. The other day I got crickets and mushu had one, I got a silkworm but wouldn’t touch it. I purchased calcium with d3 yesterday and gave Mushu dusted crickets, which he ate about 2 of. Mushu has been limping slightly in his tank recently. I also bought a smaller hornworm and Mushu still wouldn’t touch it. What do I do?

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on October 6th, 2019

Check the temps in the enclosure. Low temps can affect activity and appetite in reptiles. Prey should be gut loaded for 24 hours prior to offering to maximize nutritional value. This can be done by feeding them a high protein baby cereal, tropical fish flakes and fresh fruits/vegetables. They should also be dusted with both a calcium supplement and a multivitamin powder. You can feed mealworms, but try to feed only freshly molted ones. They have less chitin and are less likely to cause impactions or constipation. Whatever you choose to feed (mealworms, crickets, dubia roaches, etc), be sure they are appropriately sized, no bigger than the space between the eyes. The limping is cause for concern and could indicate a degree of MBD. You would need to have Mushu physically examined, and maybe x-rayed, by your veterinarian or a vet experienced in treating reptiles for diagnosis and treatment. While leopard geckos don't require UVB lighting, it may be a good idea to get one to promote general health and wellness.

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