Probiotic or prebiotic
Dried Lactobacillus Fermentation Product
Live bacteria named the way labels name them, added as probiotics.
“Dried … fermentation product” is how labels name a microbe grown by fermentation and dried: Lactobacillus, Bifidobacterium and Bacillus are common examples. They’re added as probiotics. Lactobacillus and Bifidobacterium are fragile and easily killed by heat, so they’re usually sprayed on after cooking. Bacillus forms spores and is hardier.
The evidence in dogs and cats is thin and specific to particular strains and doses, which labels rarely state. A list of names doesn’t show that any live bacteria reach your pet or that they do anything there.
Also written as: Dried Lactobacillus Acidophilus Fermentation Product, dried Lactobacillus casei fermentation product, Dried Lactobacillus Plantarum Fermentation Product, Dried Bifidobacterium Longum fermentation product, Dried Bifidobacterium Animalis Fermentation Product, Dried Bacillus subtilis Fermentation Product, Dried Bacillus licheniformis Fermentation Product, Dried Lactobacillus Fermentum Fermentation Product, Dried Lactobacillus Reuteri Fermentation Product, Dried Pediococcus Acidilactici Fermentation Product.
Sources
Updated November 2, 2026. General information, not veterinary advice.