Vitamin D3 stands out as the most crucial vitamin in reptile nutrition. In the wild, reptiles synthesise vitamin D3 through the skin’s exposure to ultraviolet rays from the sun. It’s also present in the liver and kidneys of vertebrates. However, as most captive reptiles are housed indoors and aren’t fed substantial amounts of whole vertebrates, they depend on their keepers to supply a balanced source of vitamin D3.
For lizards like Bearded Dragons, enhancing their diet with a Calcium with vitamin D3 supplement becomes vital. This ensures that they receive the essential vitamin D3 they might lack due to limited exposure to sunlight.
