Providing a balanced diet is crucial to prevent this crippling disease.
Note that while a crested gecko suffering from MBD can be brought back to health, any deformities in the bone are permanent. Prevention is the best way to avoid crested gecko MBD!
Frugivorous reptiles like crested geckos are especially susceptible to MBD because of improper supplementation and the use of baby food. Many new keepers are told that babyfood is an acceptable diet and so they don’t supplement and they might not feed anything else. Most fruits are high in phosphorus and low in calcium, which will create a calcium deficit and result in MBD over time. Dusted insects can help, but it’s not going to fix the problem.
Feeding homemade diets or babyfood is not recommended and should be used only as a treat (once a month or so).
Breeding females are susceptible to a “calcium crash” as their available calcium is used for producing eggs. Crested geckos have calcium sacs in their mouths to store calcium. Checking them is a good idea if you are acquiring a new crested gecko or have a breeding female. Proper diet again will keep females from a calcium crash which can lead to crested gecko MBD over time.