7 Best Feeder Insects for Bearded Dragons, From Staples to Treats

Black soldier fly larvae carry about 34 times the calcium of crickets.

That’s 9,340 mg/kg against 275 mg/kg in the nutrient panels published by Reptile Supply, a reptile retailer.

So the best feeder insects for bearded dragons aren’t just the bugs your dragon chases hardest. Dubia roaches, black soldier fly larvae and crickets make the best everyday staples, while silkworms and hornworms rotate in and the fattier worms stay occasional.

Below are 7 picks, ranked from best everyday staple to occasional extra, each with its protein, fat, calcium balance and the one catch to watch.

• Raising a hatchling? Pick #2, black soldier fly larvae, since they’re tiny and naturally calcium-rich.
• If you want one staple that’s quiet and won’t climb out of a tub, #1 dubia roaches fit best.
• A dragon that snubs dusted bugs often perks up for #5, hornworms.
• Mealworms (#7) are the budget pick, but they belong in the treat jar.

The 7 Best Feeder Insects for Bearded Dragons at a Glance

The 7 best feeder insects for bearded dragons are dubia roaches, black soldier fly larvae, crickets, silkworms, hornworms, superworms and mealworms, ranked from everyday staple to occasional treat. The table compares their protein, fat and calcium balance from one veterinary source, so the numbers line up fairly.

All protein, fat and Ca:P figures come from the client feeder guide of Tree of Life Exotic Pet Medical Center, an exotic-animal veterinary hospital.

Ca:P is the calcium-to-phosphorus ratio. Anything below 1:1 means the insect has more phosphorus than calcium, so you dust it before feeding.

How We Ranked These Feeder Insects

Feeder insects on this list are ranked by one measure: how much of a bearded dragon’s insect diet each can safely make up, using a veterinary hospital’s nutrient figures first. Nobody here ran a feeding trial, so the ranking rests on published numbers and the cautions that come with them.

Here’s what decided each spot:

• Nutrition from a veterinary source first. Protein, fat and Ca:P come from the Tree of Life guide, so every pick is measured the same way.
• The retailer’s own panels second. Reptile Supply’s figures add calcium and phosphorus in mg/kg and its suggested daily limits, credited as a seller’s numbers.
• Day-to-day keeping. Noise, smell, escapes and shelf life decide whether a staple works in a real home.
• Availability. Stock and shipping details come from Dubia.com’s live-feeder page as of October 2026.
• Health and safety flags. Biting, parasites and choking risks pushed a few insects down.

Ties went to the insect that does more jobs. That’s why BSFL sit above crickets: both are staples, but BSFL bring natural calcium that crickets lack.

Silkworms land below crickets for the opposite reason. They’re the gentler food for a sick dragon, but they cost more and spoil faster, so fewer owners can use them as a true staple.

One thing trips up a lot of owners. Nutrient numbers for the same insect can differ a lot between sources, so only compare insects within one source.

For example, the vet guide puts silkworms at 15 to 20% protein, while the retailer’s panel shows 9.3%. The retailer’s panel counts the insect’s water (82.7% moisture), and the vet guide doesn’t say which basis it uses, which is why the table above sticks to one source.

Why Calcium Balance Matters More Than Protein

Calcium balance separates feeder insects far more than protein does. In the Tree of Life guide, the 4 staples sit between 15% and 25% protein, but their Ca:P runs from 2.5:1 for BSFL down to about 1:9 for crickets.

That spread is the reason dusting exists. Every insect on this list except BSFL has more phosphorus than calcium, so a calcium powder closes the gap at each meal.

Protein still counts, just less often as the deciding factor. If two insects are close on protein, pick the one with the better Ca:P or lower fat, then dust it anyway.

If you think your dragon is already short on calcium, don’t fix it with bugs alone. The guide to treating metabolic bone disease explains the signs and why that needs a vet.

The 7 Best Feeder Insects for Bearded Dragons, Ranked

These are the best insects for bearded dragons to build a diet around, in the table’s order: who each suits, what it gives your pet and the catch that matters most.

1. Dubia Roaches [Best Everyday Staple]

Dubia roaches are the best everyday feeder insect for most bearded dragons, beating crickets on protein, noise and smell. If you only keep one staple bug, make it this one.

Best for: juvenile and adult dragons that need a staple at most insect meals. Skip it if you can’t find a seller that ships to you right now.

First step: Search “dubia roaches for sale” and pick a size no wider than the space between your dragon’s eyes.

The Tree of Life guide calls dubia roaches an excellent staple, with 20 to 25% protein, 7 to 9% fat and a soft exoskeleton. Compare that with crickets at 6 to 7% fat and you’ll see the two are close on fat, so the real win for dubias is practical.

Reptile Supply’s panel adds detail by size, with extra-small dubias at 21.4% protein and 3.1% fat. Extra-large ones reach 23.4% protein and 7.2% fat, so bigger roaches bring more fat.

Here’s why keepers switch from crickets:

• They’re quiet, especially next to crickets, according to the retailer.
• They have little to no smell when kept properly.
• They can’t climb smooth plastic or fly, so a tote with smooth walls holds them.
• They stay alive easily on egg crates and leftover salad from your dragon’s bowl.

That last point matters because a staple you can keep alive between orders is cheaper than one that dies in the box. If you’d rather order less often, a breeding colony is the next step, and the dubia roach enclosure setup covers the tub, heat and egg crates.

The catch is that dubia roaches still need calcium. The vet guide puts their Ca:P near 1:3 and says it “must be supplemented.”

The retailer’s extra-small panel tells the same story, with 700 mg/kg of calcium against 2,600 mg/kg of phosphorus.

The vet guide also flags one quieter risk. Overfeeding high-protein dubias may contribute to gout if the diet lacks variety, so rotate in a second insect.

Supply can be a real problem too. In October 2026, Dubia.com posted that it had paused all dubia roach sales over supply issues.

It told customers to buy from another supplier rather than wait.

Key Takeaway: Dubia roaches are the best staple you can buy, as long as you dust them and rotate in a second insect.

2. Black Soldier Fly Larvae [Best Natural Calcium]

Black soldier fly larvae, often shortened to BSFL, are the most calcium-rich feeder insect on this list and the best staple for young bearded dragons. They’re the only common feeder with more calcium than phosphorus.

Best for: hatchlings, juveniles and any dragon that needs extra calcium. Skip it as the only staple for a big adult, because the larvae are small.

First step: Search “black soldier fly larvae” or the brand names Phoenix Worms, CalciWorms or NutriGrubs.

The numbers are hard to ignore. Tree of Life puts the BSFL calcium-to-phosphorus ratio at 2.5:1, while dubia roaches sit near 1:3 and crickets near 1:9.

Reptile Supply’s panel shows the same story in raw amounts: 9,340 mg/kg of calcium against 3,560 mg/kg of phosphorus. That’s huge next to the 275 mg/kg of calcium in the retailer’s cricket panel.

What does that mean at feeding time? The vet guide says BSFL don’t require dusting and can cut your reliance on calcium powders.

The retailer adds one important limit. It says BSFL can stand in for a plain calcium powder, but not for one that contains vitamin D3, so keep your D3 dusting schedule on the other insects.

Size is the trade-off. The vet guide says BSFL are too small to be the main feeder for larger reptiles.

The retailer adds that adult dragons often lose interest, and the number of larvae you’d need for a meal gets impractical.

That’s exactly why they shine for babies. The retailer calls them best for young dragons because of their small size, and they’re easy to keep since they stay in the container they came in and don’t need feeding.

Say you bring home a juvenile that’s too small for most dubias. In this hypothetical, BSFL carry most meals, a few small dusted crickets add movement, and your D3 calcium goes on the crickets.

As the dragon grows, you swap the crickets for dubias and keep BSFL in the mix for calcium.

In other words, give a young dragon BSFL as a main staple, then shift an adult toward dubias with BSFL mixed in for calcium.

3. Crickets [Best Cheap Staple for Active Hunters]

Crickets are a cheap staple you can buy almost anywhere, and their jumpy movement gets a dragon hunting. They earn third place because they need heavy calcium dusting and careful handling.

Best for: dragons that respond to moving prey, and owners who can buy fresh crickets nearby. Skip them if you can’t remove leftovers after every meal.

First step: Buy crickets from a pet store or feeder breeder, never a bait shop.

The vet guide calls crickets cheap and easy to find, and it says their movement gets reptiles hunting. It rates them a staple when they’re gut-loaded and dusted.

Their calcium is the weak spot. Crickets have the worst Ca:P among the staples, about 1:9.

Reptile Supply’s panel shows why: 275 mg/kg of calcium against 2,520 mg/kg of phosphorus.

Crickets are also fairly watery, at 77.1% moisture on the same panel, which leaves them at 15.4% protein as fed.

So the math is simple. Without a calcium dusting, a cricket gives your dragon roughly 9 times more phosphorus than calcium, so dusting isn’t optional.

The practical downsides pile up fast, too. The retailer calls crickets notoriously hard to keep: they jump out of containers, chirp, can smell very bad and die easily.

Here’s how to feed crickets safely:

1. Buy from a pet store or feeder breeder, because the retailer warns bait-shop crickets tend to carry more parasites and disease.
2. Gut-load them for 24 to 48 hours, then dust them with calcium right before feeding.
3. Offer only as many as your dragon eats in one sitting, since the vet guide warns crickets can bite reptiles if left in the enclosure.
4. Keep your dragon well hydrated, because the retailer notes cricket hind legs can be hard to digest.

Parasites are the last flag. The same retailer says crickets carry parasites more often than dubias, so it advises a fecal exam every 6 months.

Go sooner if your dragon turns lethargic or stops eating.

If that happens, parasite treatment starts with that fecal test at your vet.

Buying crickets in a store? Ask one quick question before you pay.

Here’s what to say: “Were these crickets bred as feeders, and what have they been eating?” If nobody can answer, buy from a feeder breeder instead.

4. Silkworms [Best Soft-Bodied Staple]

Silkworms are a soft, easy-to-digest staple for bearded dragons that’s low in fat, and they’re a great fit for sick or picky dragons. They rank fourth only because they’re expensive and don’t keep long.

Best for: dragons recovering from illness, picky eaters and owners who want a lean staple. Skip them if you need a feeder that lasts weeks in storage.

First step: Search “silkworms for bearded dragons” and order a small batch to see whether your dragon takes them.

The Tree of Life guide gives silkworms high protein, low fat and a soft, highly digestible body. It calls them a great staple insect when available and singles them out as good for sick or picky reptiles.

Their Ca:P of about 1:2 is still inverted, but it’s closer to even than dubias at 1:3 or crickets at 1:9. You’ll still dust them, just with less ground to make up.

So why aren’t silk worms higher? The vet guide lists two cons: they’re expensive and they have a short shelf life.

The retailer agrees on the cost and adds that they’re hard to find, which makes them impractical as an everyday staple for many owners. Its panel also shows 82.7% moisture and 1.1% fat, so silkworms double as a watery, lean meal.

Say you feed dubias most days and want a softer option twice a week for an older dragon. A small batch of silkworms fills that slot without adding the fat that superworms or waxworms would.

Before you order silkworms, run through this quick checklist:

• Your dragon already eats a main staple, so silkworms are a supplement, not the whole plan.
• You can feed the batch within days, given their short shelf life.
• You have calcium powder ready, since their Ca:P is still about 1:2.
• You’ve budgeted for a pricier bug than crickets or dubias.

Use them up fast, though. With a short shelf life, it’s better to order small batches you’ll finish than a big box that dies before feeding day.

5. Hornworms [Best for Hydration and Picky Eaters]

Hornworms are the best hydration feeder for bearded dragons and a good way to tempt a dragon that’s gone off its food. They rank fifth because they’re low in protein and work as an extra, not a main staple.

Best for: dragons that drink poorly, picky eaters and dragons that need a break from crunchier bugs. Skip them as a main staple.

First step: Order a few small hornworms and feed them within days, before they outgrow your dragon.

Hornworms are mostly water. Reptile Supply’s panel shows 85% moisture with 9% protein, and the vet guide lists the same 9% protein with 3 to 4% fat.

Their minerals line up across both sources too. The retailer’s panel shows 464 mg/kg of calcium against 1,394 mg/kg of phosphorus, close to the vet guide’s 1:3, so hornworms still get dusted.

That’s why the vet guide calls them very hydrating and recommends them as a treat or supplemental feeder, especially for hydration. Their bright color also entices reptiles, which makes them handy when a dragon ignores its usual bugs.

The retailer goes a step further than the vet. It says hornworms can be fed as a staple alongside another staple such as dubia roaches, but never as the only one, because of all that water.

The catch? Hornworms grow fast.

The retailer says they can reach 4 or 5 inches and hit full size within days under the right conditions, and the vet guide warns they can get too large for many pets. Buy small and feed them soon after they arrive.

Too many hornworms cause a different problem. The retailer notes that their high moisture can lead to runny stool if you overdo them, so a few at a time works better than a whole cup.

If your dragon has stopped eating for more than a short spell, hornworms can help, but they don’t replace a checkup. The guide to a bearded dragon not eating explains when appetite loss needs a vet.

6. Superworms [Best Big Treat for Adults]

Superworms are a big, wriggly treat insect for adult bearded dragons, with protein close to dubias but about twice the fat. They’re an occasional extra, not a staple.

Best for: adult dragons that need a larger, active prey item now and then. Skip them for overweight dragons.

First step: Pick up a small cup and keep it as your dragon’s once-in-a-while reward.

Superworms look like giant mealworms, but Reptile Supply points out they’re a different insect. It says superworms have a softer outer shell of chitin than mealworms, which makes them easier to digest.

The retailer even rates superworms nutritionally better than mealworms, which is why they rank one spot higher here.

The vet guide rates them active and enticing to reptiles, and softer than mealworms. It also lists 14 to 15% fat and a Ca:P of about 1:13, then calls them a treat item, not a daily feeder.

The two sources split on how many to feed. The retailer says a dragon can have up to 10 superworms a day alongside a less fatty staple such as dubia roaches.

I’d treat that 10 as a ceiling, not a target, and follow the vet guide’s call that superworms are a treat. At 17.7% fat on the retailer’s own panel, 10 a day adds a lot of fat to any diet.

The retailer also says superworms suit any age as long as they’re size-appropriate. So check the eye-gap rule covered under safety before you offer one to a juvenile.

Note: Superworms are low in calcium, so dust them like any other insect on this list except BSFL.

7. Mealworms [Best Budget Treat]

Mealworms are the cheapest feeder insect on this list and a handy appetite booster, but they’re an occasional treat for adult bearded dragons only. Their low calcium and tough shell keep them at the bottom.

Best for: adult dragons as a cheap, easy-to-find extra. Skip them for hatchlings and juveniles.

First step: Keep a small cup on hand for days your dragon needs coaxing to eat.

The vet guide calls mealworms easy to find, cheap and good for stimulating appetite. It also lists 12 to 13% fat and a very poor Ca:P of about 1:13, and it rates them an occasional treat only.

Their shell is the bigger worry for young dragons, since the vet guide says the tough chitin shell can cause impaction in young reptiles. Reptile Supply goes further and says to avoid mealworms for younger dragons.

Size is easy to misjudge, too. The retailer says mealworms can grow to around 2 inches long, so check each one against the space between your dragon’s eyes.

For adults, the retailer sets a clear limit: no more than 5 to 6 mealworms a day at the most, as part of a varied diet. Its panel shows 169 mg/kg of calcium against 2,950 mg/kg of phosphorus, the widest gap among the 7 picks.

So if mealworms are cheap, why not use them more? Because a cheap bug that needs heavy dusting and adds fat isn’t a bargain as a staple.

If you want the full picture on portions, ages and storage, the dedicated guide to mealworms for bearded dragons goes deeper.

Treat Bugs and Other Feeders Worth Knowing About

Waxworms and butterworms are treat-only worms for bearded dragons, and discoid roaches and locusts are occasional alternatives, so none of the 4 made the top 7. You’ll still see them for sale and in forum threads, so here’s where each fits:

• Waxworms: a rare treat or a way to tempt a dragon that won’t eat. The vet guide lists 18 to 22% fat, and Reptile Supply caps them at 2 to 3 a day and says to avoid them for a dragon with a weight problem.
• Butterworms: a treat or rotation insect that’s aromatic and very appealing, per the vet guide, though imported and sometimes hard to find. The sources disagree on fat, 5 to 7% in the vet guide against 29.4% on the retailer’s panel, so treat them as a rich extra.
• Discoid roaches: another roach species sold alongside dubias. Dubia.com labels them “Florida Legal”; our sources didn’t include a nutrient panel for them.
• Locusts and grasshoppers: natural prey for many lizards and other active hunters, with 17 to 20% protein and 3 to 6% fat in the vet guide. Seasonal supply and high prices in some areas make them an occasional rotation rather than a staple.

Earthworms and bugs from your yard are a separate question. Read up on whether bearded dragons can eat earthworms before you offer any, because wild insects bring their own risks, covered in the safety section.

Dubia Roaches vs. Crickets vs. Mealworms

Dubia roaches beat crickets and mealworms as a bearded dragon staple, with more protein than crickets and far less fat than mealworms in the Tree of Life guide. Crickets come second as a dusted staple, and mealworms stay a treat.

Here’s how the three line up on the numbers that matter most:

• Protein: dubias 20 to 25%, crickets 18 to 21%, mealworms 18 to 20%.
• Fat: crickets 6 to 7%, dubias 7 to 9%, mealworms 12 to 13%.
• Calcium balance: dubias about 1:3, crickets about 1:9, mealworms about 1:13.

Are Dubia Roaches Better Than Crickets?

Yes, dubia roaches are better than crickets for most bearded dragons, because they carry more protein and a calcium balance about 3 times closer to even (1:3 against 1:9). Crickets edge them on fat by a point or two, but that gap is small.

The bigger difference shows up at home. Reptile Supply describes dubias as quiet, nearly odorless and unable to climb smooth walls, while it calls crickets noisy, smelly and quick to die.

Crickets still win in 2 situations. Pick them if your dragon only strikes at fast-moving prey, or if you can’t get dubias where you live.

Are Mealworms or Crickets Better?

Crickets are better than mealworms as a regular feeder for bearded dragons, since crickets carry about half the fat, 6 to 7% against 12 to 13% in the vet guide. Mealworms win only on price.

Age matters here too. Reptile Supply says to avoid mealworms for younger dragons and caps adults at 5 to 6 a day, so mealworms can’t do a staple’s job at any age.

In other words, build meals around dusted crickets and keep a few mealworms for coaxing a slow eater.

How to Build a Weekly Feeder Rotation

The best way to feed bearded dragons insects is to rotate 2 or 3 types: one main staple, one calcium or soft-bodied staple, and an occasional extra. The Tree of Life guide says no single feeder insect provides complete nutrition, so mixing feeders balances protein, fat and minerals.

Here’s a simple rotation that matches the rankings:

1. Pick a main staple. Dubia roaches for most dragons, or crickets if dubias aren’t available where you live.
2. Add a second staple. BSFL for calcium, or silkworms when you can find them, a few times a week.
3. Use one extra. Hornworms for hydration, or a superworm or mealworm as a reward, once in a while.

Here’s a hypothetical example for an adult. Say your dragon has 3 insect meals this week: dusted dubias on day 1, dubias with a few BSFL on day 2, and dubias with one hornworm on day 3.

That’s 1 main staple, 1 calcium staple and 1 extra, which is the whole rotation in practice.

What Bugs Can Bearded Dragons Eat Every Day?

Bearded dragons can eat dubia roaches, crickets, black soldier fly larvae and silkworms every day, because the vet guide classes all four as staple feeders. Hornworms, superworms, mealworms and waxworms belong on fewer days, since they’re either low in protein or high in fat.

How many insect meals a dragon needs depends on its age, and the bearded dragon care guide lays out the insect-to-greens ratio for each life stage.

Rotation also covers the gout risk flagged under dubia roaches. Even a great main staple works better with a second insect beside it.

What Are the Best Insects for Baby Bearded Dragons?

The best feeder insects for baby bearded dragons are black soldier fly larvae and small dubia roaches or crickets, sized no wider than the space between the eyes. Reptile Supply calls BSFL best for young dragons because of their small size.

Calcium matters most while a dragon is growing. BSFL bring a natural 2.5:1 Ca:P in the vet guide, so they help a juvenile get calcium even on days it eats fewer dusted insects.

Skip mealworms for babies, for the shell and impaction reasons covered under pick #7.

Superworms need the same size check, so offer one only when it’s no wider than the space between your dragon’s eyes.

So for a baby dragon, keep it simple: small, calcium-rich BSFL plus a small staple, dusted and offered fresh.

How to Gut-Load and Dust Feeder Insects

Gut-loading means feeding your feeder insects good food 24 to 48 hours before your bearded dragon eats them, so the nutrients pass along. The Tree of Life guide says greens, vegetables and gut-load diets “dramatically” improve an insect’s value.

Here’s the routine, start to finish:

1. Give the insects fresh vegetation such as greens and vegetables, plus a commercial gut-load diet, 24 to 48 hours before feeding day.
2. Right before feeding, dust them with calcium.
3. Offer only what your dragon eats in one sitting, then remove the rest.

For example, if you plan to feed on Saturday morning, start gut-loading on Thursday morning. That lands right inside the 24 to 48 hour window.

The vet guide says most insects need a high-quality calcium dusting, with or without vitamin D3 depending on your dragon’s lighting. It adds that multivitamin powders should follow a schedule your vet recommends.

BSFL are the one exception on this list, since they carry more calcium than phosphorus. Even then, keep D3 on your other insects, as pick #2 explains.

The guide to gut-loading insects covers which foods to use and skip. If dubias are your staple, follow the steps for gut-loading dubia roaches.

Feeder Insect Safety: Size, Leftovers and Wild Bugs

The safest rule for feeding bearded dragons insects is size: never offer an insect larger than the space between your dragon’s eyes. The Tree of Life feeder guide gives that rule to reduce the risk of choking or impaction.

That one rule covers most mistakes. A superworm that’s fine for an adult can be far too big for a juvenile, and a hornworm can outgrow your dragon within days of arriving.

Leftover insects are the next risk. The vet guide warns that crickets can bite reptiles if they’re left in the enclosure, so take out anything your dragon doesn’t eat after each meal.

Can You Feed a Bearded Dragon Bugs From Outside?

No, you shouldn’t feed a bearded dragon bugs from outside. Reptile Supply warns that bearded dragons should never eat wild-caught bugs, because they can carry diseases and parasites that can hurt your dragon.

That rules out the grasshopper on the patio and the moth by the porch light, even though the vet guide lists grasshoppers as a feeder when you buy them. Check the list of what bearded dragons can’t eat when you’re unsure about anything new.

In other words, size, cleanup and variety prevent most feeder-insect trouble before it starts.

Where to Buy Feeder Insects

You can buy feeder insects for bearded dragons from pet stores, online feeder breeders and online reptile retailers. Reptile Supply notes that crickets are widely available at pet stores and online, and that most pet stores stock waxworms too.

Online sellers post prices you can compare before you buy.

Shipping changes the math. Dubia.com charged flat-rate shipping on live orders, though some items shipped free.

That’s why it pays to combine a staple and a second insect in one box, as long as you can use both before they spoil.

Live insects also have to survive the trip. Dubia.com kept its dead-on-arrival rate below 4% in summer 2026, which it called the hottest summer on record.

Still, expect a few losses in hot months.

Availability can change fast. The dubia pause covered under pick #1 is a good reason to know a second seller and keep a backup staple like crickets.

How to Keep Feeder Insects Alive Until Feeding Day

Each feeder insect keeps best in a different setup, and matching it saves you from paying for bugs that die in the box. Here’s what the sources say for each:

• Dubia roaches: a smooth-walled tub with egg crates to hide in and leftover salad to eat, per Reptile Supply.
• Black soldier fly larvae: leave them in the container they came in, since the retailer says they don’t need feeding.
• Crickets: the hardest to keep, because they jump, smell and die easily, so buy smaller batches more often.
• Hornworms: feed them within days, because they can reach full size that fast.
• Silkworms: order only what you’ll use soon, since the vet guide flags their short shelf life.
• Waxworms: the retailer says they keep fine in the container they arrive in.

Whatever you keep, feed the bugs between deliveries. What they eat is what your dragon gets, so gut-loading really starts the day your order lands.

The Bottom Line

Dubia roaches are the best feeder insect for most bearded dragons, with black soldier fly larvae close behind for calcium.

This week, buy one staple and one second insect from the top 4, set up a gut-loading container, and dust every meal except the BSFL.