Source dependent

The source or production method of Lactobacillus acidophilus can vary, so it is not always vegan.

Names you may see on a label

bakterie Lactobacillus acidophilusL. acidophilusbakterie Lactobacillus acidophilus LA-5Lactobacillus acidophilus LA-5Ацидофильная палочкаkultur av lactobacillus acidophilus

How to verify it

Look for a vegan certification or a manufacturer statement identifying the original source. The ingredient name alone does not settle it.