# Strain Notes Lab
> A primer on L. paracasei, a bacterium found in some fermented foods and supplements, with honest notes on what research does and does not show.

## Guides
- [Fermented Foods Where L. paracasei Turns Up](https://lactobacillus-paracasei-primer.pages.dev/lactobacillus-paracasei-foods/): L. paracasei is associated with some fermented foods, particularly certain cheeses and fermented dairy or plant products, but a food rarely tells you which.
- [Reading L. paracasei on a Supplement Label](https://lactobacillus-paracasei-primer.pages.dev/lactobacillus-paracasei-supplement-label/): A supplement label that mentions L. paracasei should also give a strain designation, an amount and a full ingredient list.
- [Why the Letters After a Strain Name Matter](https://lactobacillus-paracasei-primer.pages.dev/paracasei-strain-designation/): The letters and numbers after a species name identify one specific strain, and strains of the same species can behave differently.
- [What Studies on One Strain Can and Cannot Tell You](https://lactobacillus-paracasei-primer.pages.dev/paracasei-research-limits/): A result from one strain does not carry over to another strain, another dose or another product, so paracasei research limits matter every time a label or.
- [Species vs Strain: A Five-Minute Explainer](https://lactobacillus-paracasei-primer.pages.dev/probiotic-species-vs-strain/): A species is the broad group, such as Lactobacillus paracasei, while a strain is one specific, individually identified line within it, and the difference is.

## About
- [About Strain Notes Lab](https://lactobacillus-paracasei-primer.pages.dev/about/): not medical advice, how the site is funded and how guides are made

## Optional
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