If you have ever watched your bearded dragon stare down a wriggling cricket or chomp into a pile of collard greens, you know they take eating seriously. But figuring out what to feed them most often can feel confusing, especially with so much conflicting advice online. The short answer is this: baby and juvenile bearded dragons need mostly live insects (about 70 to 80 percent of their diet), while adult bearded dragons should eat mostly plants (about 80 percent vegetables and greens, with only 20 percent insects). Let us break down exactly what that looks like day to day, so you can feed your beardie with confidence.
The Staple Insects: What They Eat Most as Babies and Juveniles
For the first 12 to 18 months, your bearded dragon’s body is growing fast, and that requires a lot of protein. The insects they eat most often are crickets and dubia roaches. Crickets are affordable and widely available, but they can be smelly and noisy. Dubia roaches are quieter, more nutritious, and less likely to escape, making them a favorite among experienced owners. You should also offer black soldier fly larvae (sometimes called CalciWorms) because they are naturally high in calcium. Feed your juvenile as many insects as they can eat in a 10 to 15 minute session, two to three times per day. Always dust the insects with a calcium supplement (without vitamin D3) at most feedings, and a multivitamin once or twice a week. If you need a safe way to transport your dragon to the vet or outside for natural sunlight, a good reptile carrier makes trips much less stressful for both of you.
The Staple Greens: What They Eat Most as Adults
Once your bearded dragon reaches adulthood (around 18 months old), their diet flips. The foods they eat most become dark leafy greens and vegetables. The absolute best daily staples are collard greens, mustard greens, turnip greens, and dandelion greens. These are high in calcium and low in oxalates, which means they do not block calcium absorption. You should offer a fresh salad every morning, chopped into bite-sized pieces. Other excellent vegetables to mix in include butternut squash, bell peppers (red or orange are best), and shredded carrots. Avoid spinach, kale, and Swiss chard as daily staples because they can bind calcium over time, though an occasional small amount is fine. A good rule is to provide a pile of greens roughly the size of your dragon’s head each day.
Bearded dragons have a natural instinct to eat moving prey, which is why they often ignore a bowl of dead crickets. To get them interested in greens, try placing a few live insects on top of the salad. The movement will trigger their hunting drive, and they will accidentally eat the greens too.
Safe Fruits and Occasional Treats
Fruits should never be what your bearded dragon eats most, but they make wonderful occasional treats. Offer fruits like blueberries, strawberries, mango, or papaya once or twice a week, in very small amounts (no more than a few small pieces). Fruits are high in sugar and can cause obesity or dental issues if overfed. You can also offer hornworms and silkworms as juicy treats, but avoid mealworms and superworms for daily feeding because their hard exoskeletons are difficult to digest and can cause impaction, especially in young dragons. When you take your dragon out for some exploration time, a reptile leash can help keep them safe while they hunt for dandelions or clover in the yard.
Foods to Avoid Completely
Some foods are dangerous for bearded dragons and should never be part of their diet. Avocado is toxic and can cause heart failure. Fireflies (or any wild-caught insects from outdoors) are poisonous. Iceberg lettuce has almost no nutritional value and can cause diarrhea. Rhubarb and onions are also toxic. Avoid feeding any insects caught in the wild because they may carry pesticides or parasites. Stick to commercially raised insects from pet stores or reputable online breeders. Also, never feed your dragon dog or cat food, human junk food, or dairy products. Their digestive systems are simply not built for it.
“A healthy bearded dragon eats a rainbow of greens and bugs, not just one or two favorites. Variety is the secret to a long, active life.”
Supplements and Hydration: What They Need Alongside Food
Even if you feed your bearded dragon the best staple foods, they still need supplements to thrive. Calcium powder without vitamin D3 should be dusted on insects at almost every feeding for juveniles, and three to four times a week for adults. A multivitamin powder (with beta-carotene, not preformed vitamin A) should be used once a week. For hydration, bearded dragons mostly get water from their food, but you should still provide a shallow water dish and mist their greens lightly. Some dragons enjoy a warm soak once a week, which encourages drinking through their vent. If you are keeping your dragon in a tank, proper heating is critical for digestion, so a reliable small reptile heat lamp under 50 can help maintain the basking spot at 100 to 110 degrees Fahrenheit.
How to Build a Perfect Weekly Feeding Schedule
To make things simple, here is a sample weekly feeding plan for an adult bearded dragon. Every morning, offer a fresh salad of collard greens, shredded butternut squash, and a few bell pepper strips. On Monday, Wednesday, and Friday, add three to five dusted dubia roaches or crickets. On Tuesday and Thursday, offer a few black soldier fly larvae. On Saturday, give a tiny fruit treat like a single blueberry. Sunday can be a lighter day with just greens. For juveniles, increase the insect feedings to twice daily and reduce the salad portion. If you need to transport your dragon to the vet for a checkup on their diet, an insulated reptile carrier keeps the temperature stable during the trip, which reduces stress. Always adjust portions based on your dragon’s activity level and body condition, and ask your vet if you notice sudden weight loss or gain.
