Latest research on black soldier flies as pet feed.Black soldier fly larvae have been proposed as a protein-rich feed ingredient to support the growing demand for meat. BSFL also has promise for use as a protein source in pet foods, and as such, it has been studied for palatability, nutritional quality, and health effects in dogs and cats. Black soldier fly larvae meal is an alternative, sustainable and nutritious pet food ingredient. Research suggests that BSFL powder is a suitable alternative ingredient in extruded dry cat food and may have a prebiotic effect on the gut microbiota. And BSFL testing shows it is a palatable source of ingredients that can maintain stool quality and digestibility in adult dogs.