Floating frozen cultures

Strains or species?

A quick guide on what to look for in probiotics

Strain over species

Probiotics are identified at three levels: Genus, species and strain. Studies show that physiological benefits are strain-specific and only rarely apply to species. Therefore you need to look for strain names. An example of a probiotic strain is: Lactobacillus acidophilus (LA-5®). If we zoom in, you can see the three levels:

  • Lactobacillus = genus
  • acidophilus = species
  • (LA-5®) = strain trademark1

Documented probiotics

Next, you need to make sure that the probiotic strain is supported by clinical documentation. That way you can find out what positive effect it may have and decide whether that particular probiotic area is relevant for you. 

As a global probiotics manufacturer, we continue to lead the industry in promoting probiotics backed by science. We are constantly working to provide a deeper understanding and further clinical substantiation for the probiotic strains that we offer. We also welcome initiatives leading to stricter quality requirements for probiotics from regulatory bodies and industry associations. 

Want to learn more?

Please contact us for more information. We can help guide you to the right probiotic strain for your product.

What to choose – strains or species? Choosing a probiotic can be difficult if you do not know what to look for, so here is our guide. 


1 LA-5® is a registered trademark of Chr. Hansen A/S

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