Supreme Grubs Natural Black Soldier Fly Larvae for Chickens, High Protein Grub Treats for Hens, 5 lb Review (2026)

What this treat is for and who needs it

This is Supreme Grubs dried black soldier fly larvae, sold in a 5 pound bag as a high protein treat for backyard hens, ducks, and other birds. It suits keepers looking to support their flock through molting season, when hens need extra protein to regrow feathers, or through cold months when a nutrient dense treat can help supplement energy needs. Black soldier fly larvae have become a popular alternative to dried mealworms among backyard keepers, valued for their protein and mineral content. It is less necessary for keepers whose flocks are already on a high quality balanced feed and not going through molt, since grub treats are meant as a targeted supplement rather than a daily staple.

What is in the bag and how it is made

The product is described as farm grown and GMO free, containing 100 percent dried black soldier fly larvae with no additives or preservatives mixed in. Supreme Grubs states the larvae are fed on organic food sources, which the brand ties to a probiotic rich end product, and markets the larvae as containing significantly more calcium than dried mealworms, an important detail since calcium supports eggshell strength in laying hens. The bag size is 5 pounds, which given typical treat portion sizes should last a backyard flock a good while between purchases, provided keepers stick to treat level feeding rather than using it as a primary protein source.

Feeding it and storing it well

The general approach with grub treats is to offer a small handful scattered in the run or added to a treat dispenser, rather than free feeding large quantities, since even protein and calcium dense treats should stay a minor part of overall daily intake. Feeding too many treats, grub based or otherwise, can crowd out the balanced layer or grower feed hens need for complete nutrition. Once opened, storing the bag in a sealed, cool, dry container helps preserve the dried larvae and keeps pests away, since dried insect treats can attract pantry pests if left in a loosely closed bag. Because there are no added preservatives, proper sealed storage matters more than it would with a preserved treat.

How it compares with grain based scratch treats

Against Manna Pro's 7 grain scratch blend, this grub treat is a concentrated protein and calcium source rather than a carbohydrate heavy foraging treat, so the two serve different purposes in a flock's diet. Keepers focused on molt support, feather quality, or general protein boosting will see more direct benefit from grub treats like this one, while scratch grains are better suited to encouraging foraging behavior and general enrichment. Cost per pound also tends to run higher for grub treats than for grain scratch, which is a reasonable trade-off given the more concentrated nutrition, but worth factoring in for keepers treating a larger flock regularly.

Verdict and who should consider other treats

This is a solid pick for keepers wanting a concentrated, additive free protein treat to support hens through molt, cold weather, or general nutritional variety, with calcium content that specifically benefits laying hens. The 5 pound bag is a practical size given how sparingly grub treats should be fed. Keepers mainly looking for a foraging enrichment activity rather than a nutritional boost may get more mileage from a cheaper grain scratch blend instead, and those on a tight treat budget should watch portion sizes closely given the higher cost per pound of grub based treats. For targeted protein and calcium support, though, this treat does what it promises.

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