What Do Millipedes Eat?
Complete Feeding Guide for Healthy, Long-Lived Millipedes
If you’re searching for what millipedes eat, what to feed pet millipedes, or how to properly supplement a millipede enclosure, this complete feeding guide will walk you through everything you need to know.
The most important thing to understand is this:
Millipedes do not primarily eat vegetables.
They eat the forest.
Understanding that distinction changes everything about long-term millipede success.
What Do Millipedes Eat in the Wild?
Millipedes are detritivores.
That means they consume:
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Decaying hardwood
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Fungal-infused organic matter
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Rotting plant debris
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Microbially active forest floor material
They are ecosystem recyclers.
Their digestive systems are designed to process lignin-rich, fungus-conditioned plant material — not fresh produce.
In natural ecosystems, millipedes play a crucial role in breaking down forest debris and cycling nutrients back into the soil.
The Foundation of a Millipede Diet: Substrate
In captivity, the primary food source for millipedes is not a food dish.
It is the substrate itself.
A proper millipede substrate must contain:
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Decayed hardwood (white-rot preferred)
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Aged leaf litter
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Organic structure
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Active microbial communities
Millipedes graze continuously within their enclosure.
If the substrate lacks nutritional value, they slowly decline — even if vegetables are provided.
For a full breakdown of substrate composition, see our in-depth millipede natural history guide.
Do Millipedes Eat Vegetables?
Yes — but vegetables are supplemental.
In captivity, millipedes may eat:
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Yellow Squash
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Zucchini
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Carrot
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Sweet potato
However, vegetables should never replace a nutritionally complete substrate.
Think of vegetables as enrichment, not primary nutrition.
Should You Feed Sweet Sugary Fruit to Millipedes?
Sweet Fruit can be offered occasionally, but caution is important. I NEVER use it.
High-sugar fruits may:
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Increase mold growth
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Attract mites
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Promote anaerobic substrate conditions
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Raise moisture levels too quickly
If offering fruit:
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Use small portions
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Remove within 24–48 hours
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Avoid overly watery options like melon
Low-moisture vegetables are best.
How Often Should You Feed Supplemental Food?
Supplemental feeding frequency:
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Every 7–10 days
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Small portions only
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Remove leftovers promptly
Millipedes are slow eaters.
Overfeeding creates substrate imbalance.
Do Millipedes Need Protein?
Millipedes occasionally benefit from small protein sources.
Options include:
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Leaf litter naturally containing microbial protein
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Decomposing wood infused with fungal growth
The Role of Fungi in Millipede Nutrition
Fungal activity is critical.
White-rot fungi partially break down hardwood, making it digestible.
Millipedes consume both:
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The softened wood
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The fungal tissue itself
Sterile substrates lack this natural nutrient pathway.
Biologically active substrate is healthier long term.
What NOT to Feed Millipedes
Avoid:
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Citrus
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Highly acidic foods
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Salty foods
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Processed foods
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Moldy vegetables
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Pine or cedar wood products
Softwoods contain resins that may be harmful.
Always use decomposed hardwood.
Signs Your Millipede Is Eating Properly
Healthy millipedes will:
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Burrow regularly
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Maintain full-bodied appearance
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Produce small, compact waste pellets
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Show consistent growth between molts
If they remain only at the surface seeking food, substrate quality may be insufficient.
Feeding Based on Species Size
Smaller species:
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Prefer finely broken substrate
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May consume softer vegetable pieces
Large tropical millipedes:
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Require deeper substrate
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Benefit from thicker hardwood fragments
Depth and structure matter.
Moisture Balance & Feeding
Feeding affects moisture.
Watery foods increase substrate hydration through waste.
If substrate becomes:
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Compacted
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Sour-smelling
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Anaerobic
Reduce supplemental feeding immediately.
Stable moisture gradients prevent collapse.
Bioactive Enclosures & Feeding
In bioactive millipede setups:
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Springtails
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Micro-fungi
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Decomposer organisms
Help process leftover food and prevent mold outbreaks.
However, bioactive does not eliminate the need for portion control.
Balance remains critical.
Common Feeding Mistakes
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Relying only on vegetables
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Using sterile soil instead of hardwood substrate
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Overfeeding fruit
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Leaving food too long
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Saturating substrate after feeding
Most millipede failures trace back to substrate imbalance.
The Forest Floor Model
Millipedes evolved in hardwood forests layered with:
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Leaf litter
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Decomposing wood
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Fungal networks
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Stable moisture gradients
Replicating this system is more important than providing frequent vegetables.
Supplement lightly.
Build substrate deeply.
Maintain oxygen flow.
The ecosystem feeds the millipede.
Final Thoughts: Feed the Ecosystem, Not Just the Animal
Millipede care is ecosystem care.
If the substrate is correct, feeding becomes supplemental.
If the substrate is wrong, no amount of vegetables can compensate.
Before choosing what to feed, build the enclosure correctly.
If you’re setting up a new habitat, explore our properly formulated millipede substrate and browse available Millipedes for Sale to start with a stable biological foundation.
For complete enclosure guidance, read our full millipede care guide and natural history breakdown.
Replicate the forest.
Maintain balance.
Intervene minimally.
That is how millipedes thrive for years.
