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Probiotics

Live beneficial microbes that support digestion, regularity, and immune balance. Effects depend on the specific strain.

Supplements can interact with medications and aren't right for everyone, especially during pregnancy or breastfeeding, or with a chronic condition. Ask your provider before you start.

Studied for

  • Recovery after antibiotics
  • Diarrhea and irregular bowels
  • IBS symptoms (specific strains)
  • Vaginal and urinary health (specific strains)

Found naturally in

  • Yogurt and kefir with live cultures
  • Sauerkraut
  • Kimchi
  • Miso
What variations of probiotics exist?Our top pick, what to skip, and how to read the label

Label red flags

  • Lists only genus and species, with no strain ID (the letters and numbers after the name)
  • CFU guaranteed only 'at manufacture'
  • Unclear storage instructions (refrigerated vs. shelf-stable)

Check with a provider

  • A weakened immune system, central line, or serious illness
  • Suspected SIBO, since some probiotics can worsen bloating
  • Taking antifungal medication (relevant for S. boulardii)

Related conditions

Crohn's disease & ulcerative colitis

Supplements that contain it

14 products in Dr. Lesher's dispensary list probiotics on the label.

Check with your provider before taking any of these, especially if you're pregnant or take medications.

Parts of the body it affects

Explore what each area does and the conditions that can affect it.

Illustration of the large intestine (colon)

Digestive tract

Your stomach and intestines absorb nutrients and hold most of your body's immune tissue, which makes the gut a common target in autoimmune disease.

Illustration of blood cells: red blood cells, four kinds of white blood cell, and platelets

Blood & immune system

Blood carries oxygen and nutrients, and white blood cells defend you from infection. In autoimmune disease, that defense system targets your own tissues.

Illustrations: Servier Medical Art, CC BY 4.0

Dr. Lesher, ND

Ready to find the root cause?

Dr. Lesher is a Naturopathic Doctor who focuses on autoimmune and chronic conditions in women. Since 2020, she's helped hundreds of patients stop managing symptoms and start healing.

Book a consult now