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Top 5 Feeder Insect Diets & Gutloads in Canada (2025) — Expert Guide to Boost Protein, Calcium & Vitamin Levels

Published on Thursday, August 21, 2025

Specialized feeder insect diets and gutload formulations are designed to raise the nutritional value of live prey by enriching protein, calcium and essential vitamins before feeding them to reptiles, amphibians and insectivorous birds. In Canada, pet owners and breeders prioritize products that balance nutritional science with practical needs: shelf stability for varied shipping windows, formulations that work across common feeder species (crickets, mealworms, roaches), and options that fit budgets and sustainability goals. Consumers often choose between dustable powders for quick top-dressing, meal-based gutloads for long-term enrichment, and dust-plus-meal routines for targeted nutrients. The category appeals because it directly addresses common health problems—calcium deficiency, poor growth, and low reproductive performance—while offering straightforward routines that reduce veterinary risk and improve animal vitality.

Quick Menu

1. Best Complete Powdered Gutload

2. Best Commercial-Grade Gutload

3. Best High-Calcium Gutload

4. Best Natural Blend for Crickets

5. Best Hydration & Vitamin Boost

1
BEST COMPLETE POWDERED GUTLOAD

Repashy Superload

Repashy Superload

Repashy SuperLoad is a best-in-class, highly concentrated gutload powder that reliably boosts the macronutrient and micronutrient content of feeder insects, making it a top choice for breeders and hobbyists needing precision. Its technical strength is a dense, low-dosage formula that delivers consistent nutrient ratios and better cost-efficiency per nutrient compared with whole-food or single-nutrient options like Josh's Frogs or Fluker's. Users select SuperLoad when they need predictable, measurable improvements in insect nutrition for sensitive or breeding animals.

4.6
★★★★☆
  • High-cal boost

  • Micronutrient punch

  • High-cal boost

  • Micronutrient punch

Review Summary

92%

"Users praise Repashy SuperLoad for its high nutrient density and consistent results when gut-loading or dusting feeder insects; some buyers note it’s pricier than basic feeds but worth it for improved feeder health."

  • Mix-and-go magic

  • Concentrated powdered formula delivering a broad spectrum of vitamins and minerals formulated for gut-loading feeder insects.

  • Mix-and-go magic

  • Concentrated powdered formula delivering a broad spectrum of vitamins and minerals formulated for gut-loading feeder insects.

Increased Safety & Security

Time-Saving Convenience

Repashy SuperLoad is a best-in-class, highly concentrated gutload powder that reliably boosts the macronutrient and micronutrient content of feeder insects, making it a top choice for breeders and hobbyists needing precision. Its technical strength is a dense, low-dosage formula that delivers consistent nutrient ratios and better cost-efficiency per nutrient compared with whole-food or single-nutrient options like Josh's Frogs or Fluker's. Users select SuperLoad when they need predictable, measurable improvements in insect nutrition for sensitive or breeding animals.

  • High-cal boost

  • Micronutrient punch

  • Mix-and-go magic

  • Concentrated powdered formula delivering a broad spectrum of vitamins and minerals formulated for gut-loading feeder insects.

  • High in bioavailable nutrients including calcium and vitamin D to improve feeder quality for reptiles and amphibians.

  • High-cal boost

  • Micronutrient punch

  • Mix-and-go magic

  • Concentrated powdered formula delivering a broad spectrum of vitamins and minerals formulated for gut-loading feeder insects.

  • High in bioavailable nutrients including calcium and vitamin D to improve feeder quality for reptiles and amphibians.

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From 134.95$
2
BEST COMMERCIAL-GRADE GUTLOAD

Mazuri Better Bug Gut-loading Diet

Mazuri Better Bug Gut-loading Diet

Mazuri Better Bug is a market-leading, commercial-grade gutloading diet prized for consistency and scalability, which makes it the practical choice for large-scale insect producers and pet stores. Its financial advantage is availability in bulk and competitive pricing compared with boutique or small-batch premium products, while technically it focuses on steady protein and energy provision for mass rearing rather than ultra-concentrated micronutrient delivery like Repashy. For keepers producing insects in volume, Mazuri balances cost and predictable performance better than many niche alternatives.

4.3
★★★★☆
  • Balanced formula

  • Zoo-grade reliability

  • Balanced formula

  • Zoo-grade reliability

Review Summary

86%

"Mazuri Better Bug Gut-loading Diet is commonly lauded for balanced nutrition and large packaging suitable for routine gut-loading; a minority report occasional clumping or prefer alternate textures."

  • Kibble-like crunch

  • Pelleted, high-protein gut-loading diet designed for large-scale or continuous feeder colony maintenance.

  • Kibble-like crunch

  • Pelleted, high-protein gut-loading diet designed for large-scale or continuous feeder colony maintenance.

Increased Safety & Security

Time-Saving Convenience

Mazuri Better Bug is a market-leading, commercial-grade gutloading diet prized for consistency and scalability, which makes it the practical choice for large-scale insect producers and pet stores. Its financial advantage is availability in bulk and competitive pricing compared with boutique or small-batch premium products, while technically it focuses on steady protein and energy provision for mass rearing rather than ultra-concentrated micronutrient delivery like Repashy. For keepers producing insects in volume, Mazuri balances cost and predictable performance better than many niche alternatives.

  • Balanced formula

  • Zoo-grade reliability

  • Kibble-like crunch

  • Pelleted, high-protein gut-loading diet designed for large-scale or continuous feeder colony maintenance.

  • Formulated by animal nutrition specialists to provide consistent macro- and micronutrient profiles for feeders.

  • Balanced formula

  • Zoo-grade reliability

  • Kibble-like crunch

  • Pelleted, high-protein gut-loading diet designed for large-scale or continuous feeder colony maintenance.

  • Formulated by animal nutrition specialists to provide consistent macro- and micronutrient profiles for feeders.

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$20-35 CAD

3
BEST HIGH-CALCIUM GUTLOAD

Fluker's High-Calcium Cricket Diet

Fluker's

Fluker's High-Calcium Cricket Diet is a budget-friendly, calcium-forward gutload specifically formulated to address one of the most common nutrient gaps for insect-fed reptiles. Its technical advantage is a straightforward, high-calcium profile that delivers an efficient and inexpensive way to raise dietary calcium in feeders, which makes it simpler and cheaper for owners whose primary need is calcium rather than a full-spectrum gutload. While less comprehensive than multi-nutrient options like Repashy or Reptanicals, it is an effective add-on when calcium is the primary concern.

4
★★★★☆
  • Calcium-rich punch

  • Low-dust feeding

  • Calcium-rich punch

  • Low-dust feeding

Review Summary

80%

"Fluker's High-Calcium Cricket Diet is frequently recommended for affordable calcium enrichment and decent cricket conditioning, though some users report variability in pellet size and occasional dustiness."

  • Shell-strength boost

  • Specifically fortified with elevated calcium levels to help prevent metabolic bone disease in insect-eating pets.

  • Shell-strength boost

  • Specifically fortified with elevated calcium levels to help prevent metabolic bone disease in insect-eating pets.

Increased Safety & Security

Time-Saving Convenience

Fluker's High-Calcium Cricket Diet is a budget-friendly, calcium-forward gutload specifically formulated to address one of the most common nutrient gaps for insect-fed reptiles. Its technical advantage is a straightforward, high-calcium profile that delivers an efficient and inexpensive way to raise dietary calcium in feeders, which makes it simpler and cheaper for owners whose primary need is calcium rather than a full-spectrum gutload. While less comprehensive than multi-nutrient options like Repashy or Reptanicals, it is an effective add-on when calcium is the primary concern.

  • Calcium-rich punch

  • Low-dust feeding

  • Shell-strength boost

  • Specifically fortified with elevated calcium levels to help prevent metabolic bone disease in insect-eating pets.

  • Designed for direct feeding to crickets and other feeders so they carry extra calcium to the predator.

  • Calcium-rich punch

  • Low-dust feeding

  • Shell-strength boost

  • Specifically fortified with elevated calcium levels to help prevent metabolic bone disease in insect-eating pets.

  • Designed for direct feeding to crickets and other feeders so they carry extra calcium to the predator.

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-15%6.78$
Suggested Price: 7.99$
4
BEST NATURAL BLEND FOR CRICKETS

Josh's Frogs Cricket Food

Josh's Frogs

Josh's Frogs Cricket Food is a premium, whole-food-style gutload focused on natural ingredients and palatability, appealing to hobbyists who prioritize ingredient quality and visible feeder health. Its advantage is ingredient transparency and small-batch appeal that often comes at a higher price but yields lively, well-conditioned insects compared with industrial formulations like Mazuri or concentrated powders like Repashy. Keepers who want a more 'natural' gutload regimen typically choose Josh's Frogs over budget and bulk alternatives.

4.5
★★★★☆
  • Protein-dense mix

  • Probiotic support

  • Protein-dense mix

  • Probiotic support

Review Summary

90%

"Josh's Frogs Cricket Food receives strong praise for palatability and ingredient quality, with many users reporting healthy, active feeders and good value for regular use."

  • Frog-fan favorite

  • Blend emphasizes natural and high-quality ingredients to promote gut health and palatability for crickets and roaches.

  • Frog-fan favorite

  • Blend emphasizes natural and high-quality ingredients to promote gut health and palatability for crickets and roaches.

Increased Safety & Security

Time-Saving Convenience

Skill Development & Mastery

Josh's Frogs Cricket Food is a premium, whole-food-style gutload focused on natural ingredients and palatability, appealing to hobbyists who prioritize ingredient quality and visible feeder health. Its advantage is ingredient transparency and small-batch appeal that often comes at a higher price but yields lively, well-conditioned insects compared with industrial formulations like Mazuri or concentrated powders like Repashy. Keepers who want a more 'natural' gutload regimen typically choose Josh's Frogs over budget and bulk alternatives.

  • Protein-dense mix

  • Probiotic support

  • Frog-fan favorite

  • Blend emphasizes natural and high-quality ingredients to promote gut health and palatability for crickets and roaches.

  • Balanced vitamin and mineral profile to improve the nutritional value of feeder insects for amphibians and reptiles.

  • Protein-dense mix

  • Probiotic support

  • Frog-fan favorite

  • Blend emphasizes natural and high-quality ingredients to promote gut health and palatability for crickets and roaches.

  • Balanced vitamin and mineral profile to improve the nutritional value of feeder insects for amphibians and reptiles.

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From 78.26$
5
BEST HYDRATION & VITAMIN BOOST

Reptanicals Dragon Fuel Insect Gutload

Reptanicals Dragon Fuel Insect Gutload

Reptanicals Dragon Fuel is positioned as a specialty gutload that targets omnivorous reptiles, aiming to deliver balanced vitamins and minerals along with usable energy to uplift feeder insect nutrition. Technically it sits between concentrated formulas and single-focus feeds by offering a tailored micronutrient profile that can be more specifically targeted than generalist diets like Mazuri, while often remaining competitively priced next to other premium gutloads. For keepers tending to dragons and similar species who want a focused but not overly concentrated solution, Dragon Fuel offers a middle ground.

4.4
★★★★☆
  • Omega-enriched

  • Rapid gutload action

  • Omega-enriched

  • Rapid gutload action

Review Summary

88%

"Reptanicals Dragon Fuel Insect Gutload is well-regarded for a high-quality, nutrient-rich formula that visibly improves feeder condition; a few customers mention a higher price and slightly powdery texture."

  • Dragon-sized flair

  • Offers a hydration-friendly gut load with added vitamins and electrolytes to keep feeders plump and nutritious.

  • Dragon-sized flair

  • Offers a hydration-friendly gut load with added vitamins and electrolytes to keep feeders plump and nutritious.

Increased Safety & Security

Time-Saving Convenience

Reptanicals Dragon Fuel is positioned as a specialty gutload that targets omnivorous reptiles, aiming to deliver balanced vitamins and minerals along with usable energy to uplift feeder insect nutrition. Technically it sits between concentrated formulas and single-focus feeds by offering a tailored micronutrient profile that can be more specifically targeted than generalist diets like Mazuri, while often remaining competitively priced next to other premium gutloads. For keepers tending to dragons and similar species who want a focused but not overly concentrated solution, Dragon Fuel offers a middle ground.

  • Omega-enriched

  • Rapid gutload action

  • Dragon-sized flair

  • Offers a hydration-friendly gut load with added vitamins and electrolytes to keep feeders plump and nutritious.

  • Powdered formula that mixes easily and is designed to rapidly elevate insect nutrient content before feeding out.

  • Omega-enriched

  • Rapid gutload action

  • Dragon-sized flair

  • Offers a hydration-friendly gut load with added vitamins and electrolytes to keep feeders plump and nutritious.

  • Powdered formula that mixes easily and is designed to rapidly elevate insect nutrient content before feeding out.

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$15-28 CAD

What the Research Says About Gutloading and Feeder Diets

Scientific studies and extension literature indicate that gutloading and appropriate supplement strategies reliably increase the nutrient density of feeder insects and reduce incidence of nutrition-related disorders in captive insectivores. Research highlights that nutrient transfer occurs when insects consume fortified diets or receive topical supplements, and that balanced calcium-to-phosphorus ratios and fat-soluble vitamin control are key to safe enrichment. Evidence supports combining gutload meals with periodic dusting for best results, and shows that product form (meal vs. powder) affects how long nutrients remain available to the insect and thus how soon the prey should be fed to the animal.

Gutloading (feeding insects nutrient-rich diets 24–72 hours before feeding) increases micronutrient content available to predators, improving dietary calcium and vitamin levels compared with non-gutloaded feeders.

Studies and veterinary guidance emphasize correct calcium:phosphorus ratios and vitamin D3 availability to reduce metabolic bone disease in reptiles.

Dusting with powdered supplements provides an immediate nutrient boost but is best used alongside meal-based gutloads to avoid inconsistent dosing.

Protein and amino acid content in gutloads influence growth and body condition of feeder insects, which in turn affects digestible protein available to the predator.

Formulation stability matters: meal-based gutloads keep nutrients bioavailable longer inside the insect, while dustable products are effective for last-minute supplementation.

Safety note from research: over-supplementation of fat-soluble vitamins or excessive mineral levels can be harmful; follow label recommendations and veterinary advice.

In the Canadian 2025 market the top options—Repashy Superload, Mazuri Better Bug Gut-loading Diet, Fluker's High-Calcium Cricket Diet, Josh's Frogs Cricket Food, and Reptanicals Dragon Fuel Insect Gutload—cover the full range of customer needs from heavy-duty meal-based gutloads to quick dustable supplements. For most hobbyists and breeders seeking an all-around, research-backed solution that balances nutrient profile, ease of use, and broad species compatibility, Repashy Superload stands out as the best choice among these five. We hope you found what you were looking for; use the site search to refine by animal species, ingredient preferences, or price, or expand your search to compare seed-to-shelf sourcing and local Canadian retailers.

Discover More
  • Live Feeder Insects
  • Prepared Feeder Insects
  • Supplements and Fortified Dusts
  • Feeding Tools and Trays
  • Hydration Gels and Water Supplements
  • Sustainably Farmed Feeder Insects

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