What Do Bearded Dragons Eat? Complete Food & Diet Guide

Getting the bearded dragon diet right is the single most impactful thing you can do for your beardie’s long-term health. I have been keeping bearded dragons for over 15 years, and the most common problems I see — metabolic bone disease, obesity, fatty liver — almost always trace back to diet errors that could have been prevented. This guide covers everything: safe insects, vegetables, fruits, protein sources, what to avoid entirely, and how the ratios change as your beardie grows from hatchling to adult.

Diet Ratio by Age — The Most Important Thing to Get Right

The ratio of insects to plant matter changes dramatically as bearded dragons grow. Getting this wrong in either direction causes real problems — juveniles fed like adults grow too slowly, and adults fed like juveniles develop obesity and fatty liver. This table is the foundation everything else builds on.

Expert Tip: The transition from juvenile to adult ratios around 12 to 18 months is where most owners make their biggest diet mistake. Draco went through this phase and I noticed him slowing down and gaining condition — that is the signal to start tipping the balance away from insects toward vegetables. Continuing the high insect ratio into adulthood is the primary driver of fatty liver disease in captive bearded dragons.

Feeder Insects

Bearded dragons are active hunters and live insects are the cornerstone of the protein component of the diet. All feeder insects should be gut-loaded for 24 to 48 hours before offering — the nutritional content of the insect at the moment of feeding is what your beardie receives. Never feed insects caught in the wild or garden; these carry pesticide, herbicide, and parasite risks that captive-bred insects do not.

Size rule: no feeder insect should be larger than the distance between your beardie’s eyes. This applies at every age. Oversized prey is the most common cause of impaction from insect feeding.

Crickets and Dubia roaches are the two most practical staples for most keepers. Dubia roaches have the edge nutritionally — better Ca:P ratio, no odour, cannot jump or climb smooth surfaces, and are easy to breed at home if you want a sustainable supply. Crickets are more widely available and many beardies have a stronger hunting response to their movement, which is useful for young or reluctant feeders.

Vegetables and Greens

For adult bearded dragons, vegetables and leafy greens are the backbone of the diet — 70 to 80% of total food intake. The key principle is rotating between calcium-rich staple greens daily and using occasional vegetables as variety rather than staples. Avoid light greens like iceberg lettuce, which offer essentially no nutritional value.

The best daily staple greens are collard greens, turnip greens, dandelion greens, mustard greens, arugula, and endive. These all have strong calcium-to-phosphorus ratios and no significant antinutrient concerns at normal feeding frequencies. Rotate between three or four of these daily rather than relying on a single green.

Kale, cabbage, and broccoli are nutritious but contain goitrogens — compounds that can suppress thyroid function in large amounts — so limit these to 1 to 2 times per week rather than offering them daily. Spinach and beet greens contain oxalates that bind calcium; spinach in particular should be avoided entirely given how many better alternatives are available. For a full breakdown of every common vegetable with Ca:P ratios and exact feeding frequencies, see our complete bearded dragon vegetables guide.

Always wash vegetables before serving, chop into pieces no larger than the space between the beardie’s eyes, and offer raw where possible — cooking reduces water-soluble vitamins. Mix the salad bowl with at least two or three greens rather than offering a single vegetable.

Fruits

Fruit should make up roughly 10 to 20% of the plant portion of the diet — offered as a topping or treat on top of the vegetable salad rather than a main component. Most fruits are relatively low in calcium and high in sugar, which limits how much should be fed. They add variety and are useful for encouraging reluctant feeders to eat their greens when used as a small reward component.

Safe fruits include strawberries, blueberries, raspberries, blackberries, mango, papaya, peach, pear, melon, grapes, and apple. Citrus fruits should be avoided — the high citric acid content can cause digestive irritation. Avocado is toxic and should never be offered. For a full safe and avoid list with sugar content guidance, see our complete bearded dragon fruits guide.

Other Protein Sources

Eggs

Bearded dragons can eat eggs, and the question comes up often enough to address directly. Scrambled or hard-boiled egg (plain, no seasoning, no oil) is safe and accepted by most beardies. The egg white provides protein and the yolk provides fat-soluble vitamins. That said, eggs are higher in fat than most feeder insects and offer nothing nutritionally that a good insect staple does not already provide. They are a reasonable occasional addition for adult bearded dragons — perhaps once a week or fortnight — but not a necessary part of the diet. Always cook eggs before feeding; raw egg white contains avidin, which interferes with biotin absorption. Small pieces only, and always served warm rather than cold from the fridge.

Chicken

Yes, bearded dragons can eat small amounts of plain cooked chicken occasionally. It is not toxic. However, it is also not a useful or recommended food — chicken is high in phosphorus and fat relative to the best feeder insects, and there is no nutritional gap in a properly managed insect-based diet that chicken fills. If your beardie shows interest in a small piece of plain boiled or cooked chicken breast during handling or preparation, that is fine in the same way an occasional waxworm treat is fine. As a deliberate dietary addition it is unnecessary. Never offer raw chicken (salmonella risk), never offer seasoned or processed chicken, and never offer bones. Keep pieces very small if you do offer it.

Mice (Pinkies)

Pinky mice — newborn, unweaned mice — are occasionally recommended as a protein source for adult bearded dragons. They are not toxic and beardies will eat them, but they are high in fat and not nutritionally superior to the best insect staples. Some breeders offer pinkies to gravid females needing additional protein before and after egg-laying. Outside of that specific context, pinkies are not a recommended regular addition to the diet. If you do offer them, use frozen-thawed rather than live, limit to once a fortnight at most for adults, and never offer adult mice — these are too large and too fatty.

Foods to Avoid

Some of these are simply nutritionally poor choices that displace better options; others are genuinely toxic. The toxic ones are non-negotiable — if your beardie accidentally ingests any of these, contact a reptile vet immediately.

Supplementation

Calcium supplementation is essential for all life stages. The specifics differ by age but the principle is consistent: bearded dragons in captivity cannot maintain adequate calcium levels through diet alone, and metabolic bone disease from deficiency is one of the most preventable serious health conditions in captive beardies. For a detailed breakdown of calcium types, D3 considerations, and the full supplementation schedule, see our bearded dragon calcium guide.

In brief: dust feeder insects with calcium powder (without D3 if UVB is provided; with D3 if not) at most feedings for juveniles and 3 to 4 times per week for adults. Add a reptile multivitamin once a week. Do not combine both supplements on the same feeding — alternate them. Check the vitamin A source in your multivitamin: preformed vitamin A (retinol, retinyl acetate) accumulates differently to beta-carotene, which affects how conservatively you should feed high-beta-carotene vegetables like carrots.

Water and Hydration

Bearded dragons come from arid Australian environments and are adapted to low water availability, but they still need consistent hydration in captivity. Most of their water intake comes from the vegetable content of the diet — another reason why the plant component of the adult diet matters so much. Provide a shallow water dish at all times and change it daily. Many beardies do not drink visibly from the bowl but will soak in it, which contributes to hydration through skin absorption. A brief warm bath twice a week — 10 minutes at around 90°F — stimulates drinking, aids shedding, and supports digestion. Do not be alarmed if your beardie defecates during a bath; this is normal.

Expert Tip: Turn basking lights on 30 to 60 minutes before feeding time. Bearded dragons need to be warm to have an active appetite and to properly digest after eating. A beardie fed while cold will eat poorly and may suffer impaction from food sitting undigested. Keep lights on for at least 60 minutes after a meal for the same reason.

Feeding Tips

Feed insects in the enclosure rather than a separate container — hook training resolves feeding-response bite risk more effectively than moving the animal. Use tongs or long forceps to present live insects and give the beardie a hook touch before opening the enclosure during non-feeding sessions, which signals handling rather than feeding time.

Remove uneaten insects after 10 to 15 minutes. Crickets left in the enclosure overnight can bite sleeping beardies and cause skin wounds. Offer the vegetable salad separately from insects — many beardies will preferentially eat insects and ignore vegetables if both are offered simultaneously. Presenting the salad first, or on alternating days from the main insect feeding, helps ensure adequate vegetable intake.

A feeding bowl positioned on the substrate prevents accidental substrate ingestion during feeding, which is the main cause of impaction in young bearded dragons. Tile or paper towel substrate eliminates this risk entirely for the feeding area if you prefer not to use a bowl.

Frequently Asked Questions