Skip to content
DE
Bacteria

Lactobacillus casei

Lactobacillus casei, now named Lacticaseibacillus casei, is a lactic acid bacterium found in the human gut and used in fermented milk drinks and cheese.

Also listed as Yakult, Lacticaseibacillus casei

What it is studied for

The strongest rated effects first. Bars show the size of the effect, the letter grades the evidence, and each rating lists the studies behind it.

Microbiome healthGut HealthModerateA3 studies
Bloating & gas reliefGut HealthModerateBNo linked study
Immune SupportModerateBNo linked study
All 7 rated effectsGrouped by health goal, with the publications behind each rating

Key studies

The most recent publications linked to Lactobacillus casei's ratings.

All 10 studiesEvery publication linked to Lactobacillus casei

Why people take it

Gut Health25.7%
Immune Support25.5%
Essential Health23%
Detox10.6%
Energy6.2%
Women's Hormones2.7%

SuppCo community snapshot, 2026-09-28. Reasons for use are not evidence that it works.

Sources

  1. SuppCo · Lactobacillus casei nutrient profile