How to Feed Insects to Pet Hedgehogs: Mealworms, Crickets & More — Practical Guide

Practical guide to feeding insects to hedgehogs and other small mammals — nutrition, safe species, feeding schedules, storage, and risks like obesity and calcium deficiency.

Why insects matter for hedgehogs and small insectivores

Hedgehogs are obligate insectivores by ancestry — they thrive on a diet that includes high‑quality animal protein and chitin. Live and dried feeder insects (crickets, mealworms, superworms, waxworms, roaches) provide enrichment, exercise and concentrated nutrients. But not all insects are equal: species, life stage and preparation change protein, fat and calcium availability. This guide gives practical feeding rules, safety checks and storage tips for owners of African pygmy hedgehogs and similar small mammals.

Nutritional profile (typical values and what they mean)

Feeder insect nutrient content varies by species and life stage (larva vs adult) and whether values are given on an "as‑fed" or "dry matter" basis. Below are representative ranges (as‑fed) used by exotic vets and feeder insect studies.

• Mealworms (Tenebrio molitor, live): protein ~18–25% (as‑fed), fat ~12–25%, Ca 0.02–0.07% — Ca:P ratio very low (<0.1–0.3:1).
• Crickets (Acheta domesticus, live): protein ~18–22%, fat ~5–8%, Ca 0.05–0.10% — Ca:P ratio low (~0.1–0.3:1).
• Superworms (Zophobas morio, live): protein ~15–20%, fat ~15–25%, very energy‑dense; Ca still low.
• Waxworms (Galleria mellonella, live): protein ~11–14%, fat ~30–60% (very high), low Ca — these are high‑fat treats.

Key nutrient targets for captive hedgehogs (common recommendations used by exotic vets and rescue groups):

• Protein: 30–35% of dry matter (adult maintenance)
• Fat: 10–20% of dry matter (varies with age/activity)
• Calcium:Phosphorus (Ca:P) ratio: target ~1.0–1.5:1 for bone health

Sources: Rumpold & Schlüter 2013 (nutrient ranges); exotic veterinary manuals and rescue group guidance (see citations below).

Which insect species are best for hedgehogs and similar small mammals

• Crickets: Good staple insect — moderate protein, lower fat than larvae, lively (encourages foraging). Dust or gut‑load for calcium.
• Mealworms: Common and accepted, but larval stage is relatively high in fat — use sparingly. Good for occasional training treats and variety.
• Superworms: Larger and fattier than crickets; useful as treats or for larger hedgehogs but can promote weight gain.
• Roaches (Dubia): Balanced nutrition, low odor, hardy; excellent staple feeder when available.
• Waxworms & Butterworms: Very high in fat — reserve as high‑value treats only (risk of obesity).

Feeding guidelines — how often, how much, how to prepare

General principles

• Insects should typically make up 10–30% of calories for an adult hedgehog if you feed a commercial hedgehog/cat base diet. If you feed mostly insects (not recommended long‑term), ensure supplementation to correct Ca:P and micronutrients.
• Treat insects (mealworms, waxworms, superworms) should be limited. Aim for <10% of weekly calories from high‑fat larvae.

• Staple insects (crickets, Dubia roaches): 2–4 times per week as part of daily evening feeding; offer a portion equivalent to ~10–20% of the hedgehog’s meal that night.
• Mealworms: 5–10 as a training/treat item, 2–3 times per week. For obese pets, reduce to 1–2 times/week or eliminate.
• Waxworms/superworms: Reserve for special rewards (once every 1–2 weeks at most).

• Gut‑load: Feed feeder insects nutrient‑rich diets 24–48 hours before offering (e.g., fresh vegetables, commercially formulated gut‑load) to increase their internal calcium and vitamins.
• Dusting: Lightly dust insects with a high‑calcium powder (CaCO3 or calcium gluconate) before feeding. Use a multivitamin powder with vitamin D3 only if your hedgehog has limited UV exposure or on vet recommendation.
• Avoid: Wild‑caught insects (pesticide/parasite risk) and insects fed on unknown/contaminated materials.

• Offer live insects in a shallow dish for enrichment and exercise, or pre‑kill and mix into wet or dry food for picky eaters.
• Supervise feeding if you’re concerned about injury to small hedgehogs (rare with typical species). Remove uneaten live insects after an hour to prevent stress.

Safety considerations

Parasites & disease

• Wild‑caught feeders may harbor parasites or have pesticide residues. Buy from reputable breeders or retailers with biosecure production.
• Quarantine new live feeders (or purchase from established suppliers) when integrating into your regular supply.

• Avoid suppliers that feed insects kitchen scraps or unknown materials. Reputable breeders use stable, traceable substrates/feeds.

• Gut‑loading significantly improves the nutrient value of insects (especially calcium). Offer gut‑load food 24–48 hours before using insects as feed.
• Dust with calcium (without phosphorus) for every feeding of insect‑only meals; use a multivitamin with D3 only as directed by your vet. Over‑supplementation of vitamin D can cause toxicity.

• Mealworms and waxworms are high in fat and calories. Regular, unregulated feeding leads to weight gain and related health problems (fatty liver, joint issues, reduced lifespan).
• Monitor body condition (feel the hips and spine — they should be palpable under a small fat cover) and adjust insect portions accordingly.

• Live crickets can sometimes injure small or weak animals with sharp limbs — offer pre‑killed insects to frail or very young hedgehogs.

Which species benefit (and which to avoid)

Best suited:

• African pygmy hedgehogs (Atelerix albiventris) — typical captive hedgehog, benefits from a mix of commercial diet + insects.
• European hedgehogs in rehabilitation — insects are essential for rewilding/training (but with vet supervision).
• Small insectivorous mammals kept as pets (e.g., some shrews, hedgehogs) — adjust portion by size.

• Small rodents kept as primarily granivores (mice, rats) — insects can be enrichment but not a staple.
• Very small or young hedgehogs: use soft, easily chewed insects and pre‑kill if necessary.

Storage and maintenance — keeping feeder insects healthy

Mealworms (Tenebrio molitor)

• Temperature: 7–12°C (cool storage) slows development and extends shelf life. For breeding/raising, keep warmer (20–25°C).
• Substrate: Oats or bran as bedding/feed; provide slices of carrot/potato for moisture (change regularly to avoid mold).
• Keep in breathable containers and avoid condensation.

• Temperature: 26–32°C for active crickets and breeding; lower temps slow their metabolism but can kill them if too cold.
• Humidity: Moderate (50–70%); provide moisture sources like water gel (not open water to prevent drowning) and fresh veggies.
• Housing: Vertical space helps adults climb; remove dead crickets daily to prevent ammonia build‑up.

• Cleaner and quieter than crickets; keep warm (25–30°C), with shallow water or gel and a dry, fibrous substrate.

• Clean enclosures weekly, remove frass and mold, and rotate substrate. Avoid scented chemicals near feeders.

Alternatives if your feeder insect isn't available

• Commercial hedgehog diets or high‑quality kitten/ferret foods (as dietary base)
• Freeze‑dried insects (crickets, mealworms) — good for storage and ease, but often lower in bioavailable calcium; still dust before use.
• High‑protein frozen foods (chicken, turkey baby food with no onion/garlic) used sparingly and mixed into the diet under vet guidance.
• Roach species (Dubia) — excellent substitute for crickets where legal/available.

Monitoring and adjusting

• Weigh your hedgehog monthly and track body condition visually and by touch.
• If your pet gains weight, reduce high‑fat insects first (mealworms, waxworms). If losing weight, increase protein/caloric density under vet guidance.
• Consult an exotic‑trained veterinarian for supplement plans (calcium, vitamin D) and long‑term diet design.

Key takeaways

• Insects are valuable for hedgehogs for protein, enrichment and natural behavior, but they are supplements — not a complete diet unless carefully balanced.
• Crickets and Dubia roaches are good staple feeders; mealworms and waxworms are higher in fat and should be limited to treats.
• Gut‑loading and dusting with calcium are essential because most feeder insects are low in calcium and have an unfavorable Ca:P ratio.
• Buy from reputable suppliers, avoid wild‑caught insects, and store/maintain feeders properly to reduce disease risk.
• Monitor body condition and work with an exotic vet to tailor insect use for life stage, health and weight goals.

References and further reading

• Rumpold, B. A., & Schlüter, O. K. (2013). Nutritional composition and safety aspects of edible insects. Food Chemistry. [Review of insect nutrient ranges]
• Reptiles Magazine — Feeder Insect Nutrition and Care (practical supplier/keeping guidance).
• Merck Veterinary Manual — Hedgehogs (care and clinical notes).
• British Hedgehog Preservation Society — captive diet and rehabilitation notes.

Frequently Asked Questions