Best Feeder Insects for Chameleons: Complete Nutrition Guide

So you got yourself a chameleon. Congrats.

Now you’ve got to figure out what to feed the little tree dragon, and let me tell you — it’s not as simple as tossing in a handful of crickets and calling it a day.

Chameleons in the wild eat a crazy variety of bugs. We’re talking grasshoppers, flies, beetles, butterflies, bees — basically anything that crawls or flies past their face during daylight hours.

In captivity? We can’t replicate that level of variety. But we can get pretty close.

And getting close matters more than you think. A poor diet is one of the leading causes of premature death in captive chameleons. That’s not me being dramatic. That’s just the reality.

Let me walk you through every feeder insect worth knowing about — the good, the bad, and the ones your chameleon will literally refuse to eat anything else after tasting.

The Golden Rule: Variety Is Everything

Before we get into individual bugs, let me get this out of the way.

There is no single “best” feeder insect for chameleons. Period.

The best diet is a varied one. Think of it like your own meals. If you ate nothing but chicken breast every day for a year, you’d survive, but you wouldn’t be thriving.

Aim for at least 3-5 different feeder insects in regular rotation. More is better. Each bug brings something different to the nutritional table, and your chameleon’s body needs all of it.

Now let’s break them down.

Best Staple Feeders (The Everyday Bugs)

These are the insects that can make up the bulk of your chameleon’s diet. They’re nutritious, widely available, and generally safe to feed on a regular basis.

Dubia Roaches — The MVP

If there’s one feeder insect that experienced chameleon keepers almost universally agree on, it’s the dubia roach.

Protein: ~36% | Fat: ~7% | Calcium: 20mg/100g

These guys pack serious protein without loading up on fat. They’re easy to gut-load, meaning whatever nutritious food you feed the roaches gets passed directly to your chameleon.

They don’t climb smooth surfaces. They don’t fly. They don’t smell terrible like crickets do.

The only downside? Some chameleons find them a bit boring since dubias are slow movers. And they’re illegal in a few states like Florida (though you can use discoid roaches there as a legal alternative).

Pro tip: Dust them with calcium powder (my daily dusting pick) before feeding. They don’t have enough calcium on their own.

Crickets — The Classic Starter

Love them or hate them, crickets are the most commonly available feeder insect in the world.

Protein: ~18% | Fat: ~6% | Calcium: 14mg/100g

They’re cheap, they come in every size imaginable from pinheads to full-grown adults, and every chameleon on the planet knows what to do with one.

But here’s the thing. Crickets by themselves are basically nutritional cardboard. They only become a good feeder AFTER proper gut-loading (the gutload I use weekly) with calcium-rich greens like collard greens, mustard greens, squash, and carrots.

Also, crickets stink. Like, really stink. They chirp all night. They escape. And if you leave uneaten ones in the cage overnight, they will bite your sleeping chameleon.

Yeah. The food bites back.

Pro tip: Always feed crickets in the first half of the day and remove any uneaten ones before lights out.

Silkworms — The Nutritional Powerhouse

If dubia roaches are the MVP, silkworms are the secret weapon.

Protein: ~64% (dry matter) | Fat: ~10% | Calcium: 34mg/100g

That protein number isn’t a typo. Silkworms are absolutely loaded with protein on a dry weight basis. They’re soft-bodied, making them super easy for your chameleon to digest.

They’re also packed with moisture (about 76% water), which helps keep your chameleon hydrated — a constant battle for most keepers.

The downsides? They can be tricky to find and more expensive than other feeders. They also require mulberry leaves or special silkworm chow to stay alive, which is an extra step.

But if you can get your hands on them, they’re worth every penny.

Black Soldier Fly Larvae (BSFL) — The Calcium Bomb

Here’s where things get really interesting.

BSFL have up to 50 times more calcium than crickets. Their calcium-to-phosphorus ratio is naturally around 1.5:1 to 2.5:1, which is basically perfect for reptiles.

That means you don’t even need to dust them with calcium supplements. They come pre-loaded.

They’re tiny, which makes them perfect for baby and juvenile chameleons. They don’t smell. They don’t bite. They don’t escape if you put them in a smooth-sided dish.

And here’s the bonus round — if you let them pupate, they turn into black soldier flies. These flies are diurnal (active during the day), and chameleons go absolutely wild chasing them around the enclosure.

BSFL contain lauric acid, a natural compound with antimicrobial properties that may help fight off certain parasites like coccidia.

The main complaint? Some chameleons just don’t care about them since the larvae don’t move a ton. But toss a few adult flies in the cage and watch the chaos unfold.

Locusts/Grasshoppers — The Wild Diet Staple

In the wild, chameleons eat a LOT of grasshoppers and locusts. These are diurnal insects, meaning they match what chameleons would naturally hunt during daylight hours.

Protein: ~20% | Fat: ~6% | Calcium: 35mg/100g

They’ve got solid protein, decent calcium, and their active jumping triggers your chameleon’s hunting instincts in a way that slow-crawling roaches never will.

The availability can be spotty depending on where you live. In the US, they’re harder to come by commercially than in Europe or other regions.

But if you can get them, your chameleon will probably act like it just won the bug lottery.

Best Treat Feeders (Feed These in Moderation)

These feeders are nutritious in their own way, but they come with caveats. Too much of any of these can cause problems.

Hornworms — The Hydration Hero

Hornworms are basically water balloons that happen to be alive.

They’re roughly 85% water, making them the best hydrating feeder on the market. If your chameleon’s urates are coming out yellow instead of white, hornworms can help fix that.

They also grow insanely fast. Like, you’ll order small ones and three days later they’re the size of your pinky finger.

Protein: ~9% | Fat: ~3% | Calcium: 46mg/100g

The protein content is low compared to other feeders, which is why they shouldn’t be a staple. And feeding too many can cause runny droppings because of all that water content.

Also, a heads up — never feed wild-caught hornworms that have been eating tomato or tobacco plants. Those plants contain solanine, and it makes the worms toxic.

Store-bought hornworms raised on commercial chow are perfectly safe.

Superworms — The Addictive Snack

Oh, superworms. Where do I even begin.

Protein: ~20% | Fat: ~16% | Calcium: 10.6mg/100g

They’ve got decent protein but the fat content is high. Think of them as the french fries of the chameleon world.

The real problem? Chameleons can get straight-up addicted to superworms. Like “I will refuse to eat literally anything else for 19 days” addicted. That’s not an exaggeration — chameleon keepers have reported exactly this happening.

Superworms can also bite. Not a huge deal for you, but your chameleon might get nipped and develop a fear of eating them altogether.

And if one escapes into the enclosure and hides for a couple weeks? Congratulations, you now have a darkling beetle living rent-free in your chameleon’s home.

Feed sparingly. Once or twice a week at most.

Waxworms — The Dessert

Fat: ~20% | Protein: ~16% | Calcium: 13mg/100g

Waxworms are basically the candy of the insect world. High fat, relatively low nutrition, and ridiculously tempting for chameleons.

They’re useful for getting a sick or underweight chameleon to eat, because almost nothing refuses a waxworm. But as a regular feeder? No way.

Feed these very occasionally. Think once every week or two at absolute most.

Butterworms — The Controversial One

Butterworms are high in fat but actually have decent calcium (about 43mg/100g). Some keepers use them regularly as occasional treats.

However, some sources — particularly Neptune the Chameleon, a well-known chameleon care resource — recommend avoiding butterworms entirely. The debate is ongoing in the community.

If you do feed them, treat them like waxworms. Occasional only.

Feeder Insects to Avoid (or Strictly Limit)

Mealworms — Just… Don’t

Here’s the deal with mealworms.

They have a hard chitin exoskeleton that’s difficult for chameleons to digest. This is especially dangerous for younger chameleons, where impaction is a real risk.

Their calcium-to-phosphorus ratio is terrible (roughly 0.33:1), meaning they’re actively working against your chameleon’s bone health.

And nutritionally, they just don’t bring much to the table compared to dubia roaches or silkworms.

Can your chameleon survive eating some mealworms? Sure. But there are so many better options that there’s really no good reason to bother.

Wild-Caught Insects — Proceed With Caution

This one is nuanced.

Wild insects CAN be a great source of variety. Grasshoppers, moths, and flies caught from pesticide-free areas are things chameleons would naturally eat.

But the risks include pesticide contamination and, to a lesser extent, parasites.

If you do feed wild-caught bugs, make absolutely sure: the area hasn’t been sprayed with pesticides, you can identify the species, and you’re getting regular fecal exams done for your chameleon.

Many experienced keepers do feed wild-caught insects during summer months with great results and clean fecal exams. But it’s not a beginner move.

Nutritional Comparison Table

Here’s a quick-reference breakdown of the most common feeder insects:

Feeder Insect	Protein	Fat	Calcium (mg/100g)	Moisture	Best Used As
Dubia Roaches	36%	7%	20	61%	Staple
Crickets	18%	6%	14	74%	Staple
Silkworms	64%*	10%	34	76%	Staple
BSFL	17%	9-14%	8,000+ ppm	61%	Staple
Locusts/Grasshoppers	20%	6%	35	62%	Staple
Hornworms	9%	3%	46	85%	Treat/Hydration
Superworms	20%	16%	10.6	59%	Occasional Treat
Waxworms	16%	20%	13	61%	Rare Treat
Mealworms	10-20%	13-14%	3.3	59-61%	Avoid

*Silkworm protein is measured on a dry matter basis. All other values are “as fed.”

Gut-Loading: The Step Most People Skip

Here’s something a lot of new chameleon owners don’t realize.

The insect itself is basically a vehicle. What really matters is what the insect ATE before your chameleon ate it.

This process is called gut-loading, and it’s not optional. It’s critical.

Feed your feeder insects a diet of calcium-rich vegetables 24-48 hours before offering them to your chameleon. The best gut-load ingredients include collard greens, mustard greens, turnip greens, dandelion greens, squash, sweet potato, carrots, and bell peppers.

Some keepers also add commercial gut-load products like Repashy Bug Burger or similar formulas.

What you’re doing is essentially stuffing your chameleon’s food with nutrients it wouldn’t otherwise contain. Skip this step and you’re feeding your chameleon empty calories.

Supplementation: Dusting Matters

Even with gut-loading, captive feeder insects don’t have enough calcium and vitamins on their own.

Here’s a general supplementation schedule that most keepers follow:

• Calcium without D3 — dust at almost every feeding. This is the big one. Chameleons need a ton of calcium for proper bone development, and almost every feeder insect is calcium-deficient.
• Calcium with D3 — dust 2-3 times per month. D3 helps your chameleon absorb the calcium. If your chameleon gets proper UVB lighting, they produce some D3 naturally, so you don’t want to overdo it.
• Multivitamin — dust 2 times per month. This covers vitamins A and E, among others.
• The exception: BSFL don’t need calcium dusting. They’ve already got it covered.

How Often and How Much to Feed

This depends entirely on age.

• Baby and juvenile chameleons (under 6 months): Feed daily. Let them eat as many appropriately sized insects as they want. Growing chameleons need fuel.
• Sub-adult chameleons (6-12 months): Start dialing it back. Feed 5-8 insects every day or every other day.
• Adult chameleons (12+ months): This is where overfeeding becomes a real problem. Feed 2-3 insects every other day. That’s it.

Yes, your chameleon will act hungry. Chameleons in captivity don’t have to hunt for food or escape predators, so they burn way fewer calories than wild ones. Overfeeding leads to fatty liver disease, kidney issues, and shortened lifespans.

The size rule: Never feed insects wider than the space between your chameleon’s eyes. Bigger than that and you’re risking choking.

Cup Feeding vs. Free Range Feeding

There are two main ways to deliver bugs to your chameleon.

Cup Feeding

Put the insects in a tall, smooth-sided cup inside the enclosure. The bugs can’t escape, and you can monitor exactly how much your chameleon eats.

This is the safer option, especially for feeders that might bite (crickets, superworms) or hide in the enclosure.

Free Range Feeding

Release the insects into the enclosure and let your chameleon hunt them down.

This is more enriching and mimics natural hunting behavior. Your chameleon has to move around, stalk, aim, and shoot. It’s basically the difference between eating at a table and going on a treasure hunt for your dinner.

The downside is that some bugs will hide, and crickets left overnight can nibble on your sleeping chameleon.

Most keepers use a combination of both methods.

The Fun Bonus Feeders

Want to really make your chameleon’s day? Try some of these:

Blue bottle flies — Chameleons lose their minds over flying insects. Watching a chameleon track and snipe a fly mid-air is one of the most satisfying things in reptile keeping.

Silk moths — The adult form of silkworms. They can’t fly well, making them easy targets, and they’re packed with nutrients.

Mantises — Some keepers offer small mantises as feeders. Chameleons seem to love the challenge. Just make sure they’re appropriately sized.

Isopods — These little crustaceans (yes, technically not insects) are naturally high in calcium and easy to breed. Many chameleons go absolutely crazy for them.

Final Thoughts

Feeding a chameleon isn’t complicated once you understand the basics. But it does take more effort than tossing some pellets in a bowl.

Variety, gut-loading, and supplementation — those are your three pillars. Get those right and your chameleon will not only survive, it’ll actually thrive.

Start with dubia roaches and crickets as your base. Add in silkworms or BSFL when you can. Throw in hornworms for hydration and the occasional superworm for excitement.

Rotate. Mix it up. Keep things interesting.

Your chameleon didn’t choose captive life. The least we can do is make sure the room service is top-notch.