GrubTerra sells dried black soldier fly larvae as a treat for backyard chickens, ducks, and wild birds, with the product page showing 2,232 customer reviews at the time of writing — a fairly substantial sample size for a niche pet/livestock treat.
GrubTerra uses tiered bulk pricing: a 5lb bag runs $49.95 ($9.99/lb), a 10lb bag is $99.90 discounted to $79.95 ($7.99/lb, saving $19.95), a 20lb bag (marked "Most Popular") is $199.80 discounted to $139.96 ($6.99/lb, saving $59.84), and a 50lb bag (marked "Best Deal") is $499.50 discounted to $339.95 ($6.79/lb, saving $159.55). The brand also offers a "GrubSub" promo code for 20% off a first subscription order.
GrubTerra states its larvae contain roughly 75 times more calcium than mealworms and markets the treats as supporting egg production, stronger shells, and reduced molting time — these are brand-stated benefits rather than independently verified claims, so buyers should treat them as marketing framing. The company also says its larvae are raised in the USA, Canada, Costa Rica, and Indonesia, explicitly stating "never from China," and markets the product as free of additives or preservatives, along with a sustainability angle around diverting food waste.
Among the testimonials on the page, reviewers Jay C. and Lisa C. described their egg production increasing from roughly 1-2 eggs per day to 4-5 eggs per day after switching their flock to GrubTerra — a notable result, though it's a single household's anecdotal account rather than a controlled comparison, and results will vary by flock, breed, and existing diet.
For backyard poultry keepers looking for a calcium-boosting treat with a well-reviewed track record and flexible bulk pricing, GrubTerra's dried larvae look like a reasonable option to try, keeping in mind that egg-production benefits will vary by household and flock.
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