Bifidobacterium longum BB536

Tier 2 — promising · Gut health · Immunity · Allergy

One of the most researched Bifidobacterium strains with over 200 published studies. Multiple trials confirm BB536 improves seasonal allergy symptoms, reduces respiratory infections in elderly care facilities, and normalises bowel habits. A 2024 trial found 10 billion CFU/day significantly reduced cedar pollen allergy scores. Also supports bone mineral density in postmenopausal women.

Dose: 2–10 billion CFU/day; well studied for allergies, immunity, and bowel regularity