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The Best Grub Treats for Chickens

The short answer

Grubbly Farms Grubblies is the best grub treat for chickens right now: it publishes a full guaranteed analysis including a calcium figure, its origin claim held up everywhere we checked, and its store is actually open. We ranked five dried black soldier fly larvae products, Grubbly Farms, Small Pet Select, Mile Four, GrubTerra, and FLYGRUBS, on four checks anyone can repeat: published guaranteed analysis, verifiable origin, price per pound, and availability. No independent grub-vs-grub comparison existed anywhere when we looked, which is why this page does. GrubTerra is the cheapest per pound in bulk at $6.79, and FLYGRUBS is the most-reviewed with 8,014 Amazon ratings, but both give up ground on transparency.

Updated · every claim sourced below

#1

Grubbly Farms Grubblies

Most transparent

Grubbly Farms is one of only two brands on this list printing a calcium figure, 1.0 to 1.5% alongside 34% minimum protein and 26% minimum fat, and the only one pairing a full guaranteed analysis with an origin claim we found no contradiction against and a store you can buy from today. You pay for that: at $19.99 per pound for the 1 lb bag down to $9.00 per pound at 20 lb, it is the most expensive dried grub here.

Price
$19.99 (1 lb) to $179.99 (20 lb)
Per pound
$19.99 (1 lb) down to $9.00 (20 lb)
Guaranteed analysis
34% protein, 26% fat
Calcium
1.0 to 1.5% (one of two brands publishing one)
Origin
USA and Canada, per its product page
See at Grubbly Farms →
#2

Small Pet Select Chicken Grub Bugs

Best for small flocks

Small Pet Select publishes a guaranteed analysis of 36% minimum protein and 26% minimum fat, labels its Grub Bugs U.S. sourced, and we confirmed the bag in stock at its own store on August 30, 2026. The limits are range and detail: it sells one 2 lb size at $21.99, about $11 per pound, with no bulk option and no published calcium figure. For a small flock working through a bag at a time, that trade reads fine.

Price
$21.99 (2 lb, the only size)
Per pound
about $11.00
Guaranteed analysis
36% protein, 26% fat
Calcium
not published
Origin
U.S. sourced, per its product page
See at Small Pet Select →
#3

Mile Four Black Soldier Fly Larvae

Best bulk buy with a nutrition label

Mile Four publishes a 36 to 42% protein range and sells the cheapest bags that come with any guaranteed analysis at all: $49.95 for 5 lb and $79.95 for 10 lb, which works out to $9.99 down to about $8.00 per pound. It loses ground on origin, because the sourcing copy on its own pages is internally inconsistent and appears to share wording verbatim with GrubTerra's, so we could not pin down where the larvae are raised. No calcium figure is published either.

Price
$49.95 (5 lb), $79.95 (10 lb)
Per pound
$9.99 down to about $8.00
Guaranteed analysis
36 to 42% protein
Calcium
not published
Origin
unclear: its own sourcing copy is inconsistent
See at Mile Four →
#4

GrubTerra Black Soldier Fly Larvae

Best value in bulk

GrubTerra is the price leader of the five in bulk: $18.99 for 1 lb up to $339.95 for 50 lb, which works out from $18.99 per pound at 1 lb down to $6.79 per pound at 50 lb, the cheapest bulk rate we found. It publishes no guaranteed analysis, and its origin is unclear: the GrubTerra site says its larvae never come from China, while its own Amazon listing states they are sourced from Mexico. If you feed by the scoop and can live without a nutrition label, the bulk math is hard to beat.

Price
$18.99 (1 lb) to $339.95 (50 lb)
Per pound
$18.99 (1 lb) down to $6.79 (50 lb), cheapest of the five in bulk
Guaranteed analysis
none published
Origin
unclear: site and Amazon listing disagree
Amazon ratings
1,033
See at GrubTerra →
#5

FLYGRUBS Black Soldier Fly Larvae

Most reviewed

FLYGRUBS is the category's most-reviewed product, with 8,014 ratings on its Amazon listing, and its label carries a 36 to 42% protein range plus a 2 to 5% calcium range, the highest calcium figure any of these brands prints. It sits last on availability: flygrubs.com returned a store error when we checked on August 30, 2026, leaving Amazon as the only place to buy it, and we could not verify a current price, so we print none.

Price
not listed: we could not verify a current price
Guaranteed analysis
36 to 42% protein
Calcium
2 to 5%
Availability
Amazon only; the brand's own store was down when checked August 30, 2026
Amazon ratings
8,014, the most-reviewed grub treat in the category
See on Amazon →

How we ranked them

No independent grub-vs-grub comparison existed anywhere when we searched; the closest things were brand pages ranking their own product first and generic treat lists. That gap is why this page exists. We ranked five dried black soldier fly larvae products on four checks, in this order: whether the brand publishes a guaranteed analysis, whether its stated origin holds up across its own listings, price per pound, and whether you can actually buy it today. The checks interact: FLYGRUBS prints a fuller analysis than two brands ranked above it, but its own store is closed and its price unverifiable, and a product you cannot reliably buy at a known price cannot rank above ones you can. Every price on this page came from the brand's own store, checked August 2026, and where we could not verify a number we say so instead of printing one. One more thing worth stating plainly: we earn nothing from these rankings. No link on this page is an affiliate link, no brand paid for placement or saw the ranking before publication, and if that ever changes we will disclose it here.

How much grub treat to feed

Keep grubs, like all treats, less than 10% of the daily diet. That limit comes from Texas A&M's School of Veterinary Medicine, and it exists because every mouthful of treat displaces a mouthful of complete feed, which is where the balanced nutrition lives. In practice that means a small scattered handful for a backyard flock, not a filled feeder. The exception where grubs earn a bigger role is molt, when hens are rebuilding feathers that are mostly protein and a 36% or better protein treat pulls the diet in the right direction; see our guide to molt feeding for how that works. And if you are weighing grubs against the other bag at the feed store, our BSFL vs mealworms comparison covers which insect wins for laying hens and why.

Buying notes: origin claims, calcium gaps, and per-pound math

Three things to watch before you order. First, origin claims do not always line up, and we report the mismatches rather than settle them: GrubTerra's site says its larvae never come from China while its own Amazon listing says sourced from Mexico, and Mile Four's sourcing copy is internally inconsistent and appears to share wording verbatim with GrubTerra's. Grubbly Farms (USA and Canada) and Small Pet Select (U.S. sourced) are the two whose origin statements we found no contradiction against. Second, calcium is mostly a blank: Grubbly Farms prints 1.0 to 1.5% and FLYGRUBS prints 2 to 5%, while Small Pet Select, Mile Four, and GrubTerra publish no calcium figure at all. Third, do the per-pound math on the bag you would actually buy, because the spread is wide: the same category runs from $6.79 per pound (GrubTerra's 50 lb bag) to $19.99 per pound (Grubbly Farms' 1 lb bag), and small bags always cost more per pound than bulk.

Quick answers

Which grub treat has the most protein?

FLYGRUBS and Mile Four both print a 36 to 42% protein range, Small Pet Select prints 36% minimum, and Grubbly Farms prints 34% minimum. GrubTerra publishes no guaranteed analysis, so its protein content is unknown. Ranges and minimums are not directly comparable, which is part of why we rank a full published analysis so highly.

Are any of these grubs raised in China?

Every brand here that addresses it says no, but the paper trail varies. Grubbly Farms states USA and Canada and Small Pet Select states U.S. sourced, with no contradictions we could find. GrubTerra's site says never China while its own Amazon listing says sourced from Mexico, and Mile Four's sourcing copy is internally inconsistent, so we list both origins as unclear rather than take a side.

How many dried grubs can I feed my chickens per day?

Keep all treats, grubs included, less than 10% of the daily diet, per Texas A&M's School of Veterinary Medicine. A small scattered handful for the flock is plenty, with the complete feed carrying the other 90% or more.

Why is there no price listed for FLYGRUBS?

Because we could not verify one. The brand's own store at flygrubs.com returned an error when we checked on August 30, 2026, leaving Amazon as its only storefront, and we only print prices we confirmed directly. Its nutrition numbers and its 8,014 Amazon ratings are published, so those appear.

Are black soldier fly larvae better than mealworms for chickens?

For laying hens, dried black soldier fly larvae generally win on calcium while mealworms win on protein percentage, and both belong under the 10% treat limit. Our BSFL vs mealworms comparison works through the published feed-table numbers behind that verdict.

Sources