What Do Bearded Dragons Eat? Complete Diet Guide
What bearded dragons eat at every age: the insect-to-greens ratio, staple feeders and greens, supplements, and a feeding chart to keep your dragon healthy.
Bearded dragons are omnivores, which means a healthy diet combines live feeder insects with fresh leafy greens and vegetables. Getting that balance right is one of the most important things you do as a keeper, because diet drives growth, bone health, and lifespan. The single most useful rule to remember is that the ratio changes with age: young dragons eat mostly insects to fuel rapid growth, while adults eat mostly plants to stay lean and avoid organ strain. Below is the full picture, from staple foods to supplements to a feeding chart you can follow.
Diet Staples for a Bearded Dragon
Dubia Roaches 100 Large Dubia Roaches
$23.00 on Amazon
The cleanest, most nutritious staple feeder insect.
Josh's Frogs Live Banded Crickets (500 ct)
$26.99 on Amazon
Classic staple feeder, active prey that triggers feeding response.
Fluker's Reptile Calcium Without D3
$4.79 on Amazon
Dust insects with this at nearly every feeding for strong bones.
Fluker's Buffet Blend Veggie Diet
$9.99 on Amazon
Dried veggie variety to supplement fresh greens for adults.
The two halves of a bearded dragon diet
Every bearded dragon meal plan is built from two food groups. The first is animal protein, delivered through live feeder insects. The second is plant matter, mostly leafy greens with smaller amounts of other vegetables and the rare fruit treat. A wild bearded dragon eats whatever it can catch and whatever grows in its desert and scrubland range, and that diet naturally shifts as the animal ages. We copy that shift in captivity.
Feeder insects: the protein source
Insects supply the protein, fat, and chitin that growing dragons need. The best staples are dubia roaches and crickets, because they have a good protein-to-fat ratio and a reasonable calcium balance once gut-loaded. Other insects rotate in as treats or variety: black soldier fly larvae are naturally high in calcium, while superworms, hornworms, and waxworms are richer and fattier, so they stay occasional. The golden safety rule is that no insect should be larger than the space between your dragon's eyes. A feeder that is too big is the leading cause of impaction, a dangerous blockage.
Greens and vegetables: the plant source
Leafy greens are the foundation of an adult's diet and should be offered fresh every day at every age. The best staple greens have a favorable calcium-to-phosphorus ratio and low oxalate content: collard greens, mustard greens, dandelion greens, turnip greens, and escarole. You can add color and variety with squash, bell pepper, grated carrot, and green beans. Keep spinach and beet greens occasional, because they bind calcium, and skip iceberg lettuce entirely since it is mostly water with almost no nutrition.
How the diet changes with age
This is the part new keepers most often get wrong. The insect-to-plant ratio is not fixed. It flips as your dragon matures, and feeding an adult like a baby is a fast track to obesity and fatty liver disease.
| Life stage | Age | Insects vs plants | Insect feedings |
|---|---|---|---|
| Baby | 0 to 5 months | ~80% insects / 20% plants | 2 to 3 times daily |
| Juvenile | 5 to 12 months | ~60 to 70% insects | 1 to 2 times daily |
| Sub-adult | 12 to 18 months | Shifting toward plants | Once daily to every other day |
| Adult | 18+ months | ~80% plants / 20% insects | 2 to 3 times weekly |
Notice that greens are offered daily at every stage. Even a hungry baby that ignores its salad should have fresh greens in the enclosure, because dragons learn to eat what they see consistently. Many keepers find their dragon starts nibbling greens around the juvenile stage once the habit is established early.
Supplements: calcium and vitamins
A captive diet cannot fully match wild nutrition, so supplements close the gap and prevent metabolic bone disease (MBD), the most common nutritional illness in pet dragons. There are two products to understand.
- Calcium powder. Lightly dust feeder insects at nearly every insect feeding. Choose calcium without D3 if your dragon has a strong T5 HO 10.0 UVB bulb, since UVB lets the body make its own D3. Choose calcium with D3 if your UVB is weak, old, or absent, to ensure calcium is actually absorbed.
- Multivitamin. Dust feeders with a reptile multivitamin once or twice a week to supply vitamin A precursors, trace minerals, and other micronutrients.
Just as important as dusting is gut loading: feeding your insects nutritious food for 24 to 48 hours before they go to your dragon. A gut-loaded, dusted insect is a complete meal. A starved, undusted insect is mostly empty shell.
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A simple weekly feeding routine
Here is what a healthy routine looks like in practice for an adult dragon. Adjust the insect frequency upward for babies and juveniles.
- Every morning: Offer a fresh salad of chopped greens and a little vegetable variety. Remove uneaten salad in the evening before it wilts or attracts insects.
- Insect days (2 to 3 per week for adults): Offer calcium-dusted, gut-loaded insects, as many as your dragon eats in about 10 to 15 minutes. Remove any uneaten crickets afterward so they cannot nip your dragon overnight.
- Once or twice a week: Swap the calcium dust for a multivitamin dust.
- Occasionally: Offer a few bites of fruit or a fatty treat insect like a hornworm or superworm for variety and enrichment.
- Always: Provide a shallow dish of clean water, and never feed insects bigger than the gap between the eyes.
Foods to avoid
A few foods are genuinely dangerous and should never be offered. Avocado is toxic to reptiles. Rhubarb, onion, garlic, and chives are harmful. Fireflies and any glowing insect can be fatal. Wild-caught bugs may carry pesticides or parasites. Among plants, treat spinach, beet greens, and chard as rare extras because of their calcium-binding oxalates, and skip iceberg lettuce because it offers almost nothing nutritionally. Stick to the staples, dust and gut-load your insects, and your dragon will get everything it needs to thrive for many years.
Frequently Asked Questions
What do bearded dragons eat?
Bearded dragons are omnivores that eat a mix of live feeder insects and leafy greens, plus a small amount of other vegetables and the occasional fruit. The balance shifts with age: babies and juveniles eat mostly insects for growth, while adults eat mostly greens. Staple insects are dubia roaches and crickets, staple greens include collard, mustard, and dandelion greens, and every insect feeding is dusted with a calcium supplement.
What is the ratio of insects to greens for a bearded dragon?
It depends on age. Babies and juveniles eat roughly 80 percent insects and 20 percent plants because they need protein to grow. Adults flip that ratio to about 80 percent plants and 20 percent insects, since too much protein in an adult strains the organs and causes obesity. Fresh greens should be available daily at every life stage, even for insect-hungry babies.
Can bearded dragons eat fruit?
Yes, but only as an occasional treat, a few small bites once or twice a week at most. Fruit is high in sugar and often has a poor calcium to phosphorus ratio, so it should never replace leafy greens. Good choices include berries, melon, and small amounts of mango or papaya. Skip citrus and avocado, which can upset the gut or are toxic.
What can bearded dragons not eat?
Avoid avocado, rhubarb, and onion family plants, which are toxic. Skip iceberg lettuce and spinach as staples, since iceberg is nearly all water and spinach binds calcium. Do not feed fireflies or any wild-caught insects, which may carry pesticides or parasites. Insects larger than the space between your dragon's eyes risk impaction, so size feeders carefully.
How often should I feed my bearded dragon?
Babies eat insects two to three times a day, juveniles once or twice a day, and adults are fed insects only two to three times a week. Fresh greens are offered every single day at all ages. Always dust feeder insects with calcium powder and gut-load them first, so each meal delivers real nutrition rather than empty protein.
Do bearded dragons need supplements?
Yes. Captive diets cannot match wild nutrition, so you dust feeder insects with a calcium supplement at nearly every insect feeding, and add a reptile multivitamin once or twice a week. Whether your calcium includes vitamin D3 depends on your UVB setup: with strong T5 HO UVB, use plain calcium most days; with weak or no UVB, you need calcium with D3 to prevent metabolic bone disease.
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