Bearded dragons, as hardy reptiles native to the arid landscapes of Australia, are adapted to survive in conditions with infrequent availability of food. As such, an adult bearded dragon can go up to two weeks without eating. However, this should not be interpreted as an ideal or normal situation because regular feeding is important in keeping them healthy.
Their ability to go without food for this length of time ties with their metabolic processes. When food is scarce, bearded dragons can slow down their metabolism, a state known as brumation, which is similar to hibernation in mammals. During this phase, energy requirements drop significantly, which is why they can survive without feeding.
However, it is essential to note that while bearded dragons may be able to survive without food for an extended period of time under stress or unfavorable conditions, this does not mean it is healthy for them. Bearded dragons should have regular access to food. Their diet should consist of a mix of insects, fruits, vegetables, and commercial bearded dragon food. Without regular feeding, they can become malnourished and suffer from various health problems including weight loss, lethargy, and potentially life-threatening conditions.
Juvenile bearded dragons need more frequent feedings due to their rapid growth. They require daily feedings and may even eat multiple times a day. If a juvenile bearded dragon is not eating, it is more concerning than an adult not eating and should be immediately brought to the attention of a vet.
Although bearded dragons may resist food due to various reasons like relocation stress, sickness, or brumation, it is important to consult with a veterinarian if a bearded dragon continues to refuse food for more than a few days. The vet can rule out any underlying health issues causing the lack of appetite and give advice on how to stimulate the bearded dragon's hunger.
In summary, though adult bearded dragons can survive without food for up to two weeks, regular feeding is vital for their well-being. If a bearded dragon has not been eating for several days, a check-up with a vet is highly recommended to rule out potential health issues.