Probiotics are live microorganisms that provide health benefits when consumed in adequate amounts. In dog food, they're added to support digestive health and overall wellness.
Common Probiotic Strains
- Lactobacillus acidophilus: Supports intestinal health
- Bifidobacterium animalis: Aids digestion and immune function
- Enterococcus faecium: Promotes healthy gut flora
- Lactobacillus casei: Supports digestive balance
- Bacillus coagulans: Spore-forming, survives processing better
Benefits for Dogs
- Digestive health: Help maintain balanced gut bacteria
- Immune support: 70% of immune function is in the gut
- Nutrient absorption: Healthy gut bacteria aid nutrient uptake
- Diarrhea prevention: Can help prevent antibiotic-associated diarrhea
- Allergy support: May help with some food sensitivities
How They Work
Probiotics work by:
- Competing with harmful bacteria for resources
- Producing substances that inhibit pathogens
- Supporting the intestinal barrier
- Modulating immune responses
Considerations for Dog Food
Viability is key: Probiotics must be alive to work. The heat and pressure of kibble manufacturing can kill many strains. Look for:
- Probiotics listed after "guaranteed analysis" (added after processing)
- Spore-forming strains like Bacillus that survive better
- CFU counts (colony forming units) guaranteeing live cultures
Wet foods may preserve probiotics better than dry kibble.
When Probiotics Help Most
- During or after antibiotic treatment
- Times of stress (travel, boarding, new home)
- Digestive upset or irregular stools
- Transitioning to new foods
- Supporting overall wellness