Lactobacillus plantarum

Tier 2 — promising · Gut health · Immunity · IBS

One of the most well-studied probiotic strains available today. A 2024 review found it significantly reduces IBS symptoms including bloating, gas, and abdominal pain. Also supports immune function by strengthening the gut barrier. The 299v and LP01 strains have the strongest clinical evidence. Very safe with no serious side effects reported.

Dose: 10–20 billion CFU/day; strain-specific evidence strongest for 299v and LP01