Buff Clucks GrubFuel Black Soldier Fly Larvae for Chickens
Fuel natural foraging with 100% dried black soldier fly larvae—a flock-favorite source of protein, calcium and healthy fats with nothing extra added.
100% Dried BSFL
Naturally Protein Rich
Natural Calcium
USA Raised
A Nutrient-Dense Treat Chickens Love
GrubFuel contains one simple ingredient: dried black soldier fly larvae (Hermetia illucens). These shelf-stable grubs provide naturally occurring protein, calcium, fat and amino acids while encouraging chickens to scratch, peck and forage.
Buff Clucks states that its larvae are sustainably raised in the USA without added hormones, antibiotics, pesticides, fillers or preservatives.
Why Add Black Soldier Fly Larvae?
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Natural Protein
Protein supplies amino acids used throughout the body and is especially valuable during normal feather growth and molt.
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Natural Calcium
Black soldier fly larvae contain substantially more calcium than conventional dried mealworms, complementing a balanced layer diet.
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Foraging Enrichment
Scatter feeding encourages natural scratching and pecking behavior and can make routine flock observation easier.
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Sustainably Raised
Black soldier fly larvae are an efficient insect-protein source requiring fewer resources than many conventional proteins.
Keep Treats Balanced
No more than 10% of the daily diet
GrubFuel is a treat or supplemental protein source—not a complete poultry feed. At least 90% of the flock’s diet should remain an age-appropriate, nutritionally complete poultry ration.
Feeding approach: Offer a small amount a few times per week and adjust for flock size, body condition, season and the rest of the diet. Avoid unlimited access to high-fat treats.
Three Easy Ways to Serve
Scatter & Forage
Toss a modest amount over a clean, dry run so the flock can scratch and hunt naturally.
Training Reward
Use a few larvae to encourage birds into the coop, reward handling or perform a quick health check.
Feed Topper
Sprinkle a small amount over a complete poultry ration without allowing treats to displace balanced feed.
Feeding by Life Stage
Adult Chickens & Laying Hens
Serve as an occasional treat, foraging reward or temporary protein boost while maintaining a complete poultry diet and appropriate free-choice calcium for laying hens.
Chicks Over Two Weeks
The manufacturer permits small crushed pieces for chicks over two weeks old. Offer only tiny amounts alongside complete chick starter and provide age-appropriate chick grit when feeding anything beyond formulated starter feed.
Molting Birds
A modest protein-rich treat can complement the flock’s complete ration during normal feather replacement.
Mixed Poultry Flocks
Buff Clucks markets GrubFuel for chickens and ducks. Confirm label directions for other poultry species and use treat portions appropriate for each bird.
Ingredient, Package and Storage
Single Ingredient
100% dried black soldier fly larvae.
Package Size
1 lb (16 oz / 454 g) resealable bag.
No Refrigeration Needed
Dried larvae are shelf stable when protected from heat and moisture.
Storage
Reseal after opening. Store in a cool, dry place away from direct sunlight, moisture and pests.
Analysis note: Nutrient levels in a natural single-ingredient product can vary. Use the package’s guaranteed analysis—not general black soldier fly larvae averages—for exact product values.
Frequently Asked Questions
Is GrubFuel a complete chicken feed?
No. GrubFuel is a treat or supplemental food. Chickens still require an age-appropriate complete poultry ration as the foundation of their diet.
How much GrubFuel should I feed?
Keep GrubFuel and all other treats combined to no more than approximately 10% of the flock’s total daily diet. Offer modest portions rather than free-choice access.
Are black soldier fly larvae the same as mealworms?
No. They are different insect species. Dried black soldier fly larvae generally provide much more naturally occurring calcium than dried mealworms, while both are protein-rich treats.
Can chicks eat GrubFuel?
Buff Clucks permits small crushed pieces for chicks over two weeks old. Keep portions tiny, maintain complete chick starter as the primary diet and provide age-appropriate grit when chicks receive foods beyond formulated starter.
Can I feed GrubFuel during molt?
Yes, it can be used as a modest protein-rich treat during molt. It should complement rather than replace a nutritionally complete ration.
Does GrubFuel replace oyster shell for laying hens?
No. Although black soldier fly larvae naturally contain calcium, laying hens should still receive a complete layer ration and an appropriate free-choice calcium source when recommended for the flock.
