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probiotic

Lactobacillus acidophilus

Also known as: L. acidophilus
General evidence: C

What it is

A bacterial genus/species used in probiotics.

Why it's used

Marketed for digestive support. Effects depend on strain and CFU.

Evidence by claim

ClaimEvidence grade
Improves stool quality in healthy dogsC

Cited studies

  • Developing Gut-Healthy Strains for Pets: Probiotic Potential and Genomic Insights of Canine-Derived Lactobacillus acidophilus GLA09.
    Microorganisms · 2025
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  • Safety and efficacy of a feed additive consisting of Enterococcus faecium NBIMCC 8270, Lactobacillus acidophilus NBIMCC 8242, Lactobacillus helveticus NBIMCC 8269, Lactobacillus delbrueckii ssp. lactis NBIMCC 8250, L. delbrueckii ssp. bulgaricus NBIMCC 8244 and Streptococcus thermophilus NBIMCC 8253 (Probiotic Lactina®) for cats and dogs (Lactina Ltd.).
    EFSA journal. European Food Safety Authority · 2022
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  • Preparation and application characteristics of microencapsulated Lactobacillus acidophilus as probiotics for dogs.
    Pakistan journal of pharmaceutical sciences · 2015
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Products containing Lactobacillus acidophilus

Educational information only. Not veterinary advice. Always talk to your vet before starting a new supplement.