62
SCORE
Lactobacillus fermentum
Gut · Immunity · Women's health
Tier 2 — Promising
What it is
A probiotic found in fermented foods. The ME-3 strain uniquely produces glutathione, the body's master antioxidant, directly in the gut. Small trials show reduced oxidative stress and improved cholesterol in elderly subjects. Also studied for vaginal health. Less evidence than LGG or S. boulardii but an emerging strain.
Efficacy
2/5
Safety
5/5
Research
2/5
Onset
3/5
Cost
3/5
Drug-int.
5/5
Dose
1–10 billion CFU/day; ME-3 strain uniquely produces glutathione in the gut
Time of day & tips
Take daily with a small meal. Refrigerate for freshness. Allow 4–6 weeks of consistent use to assess benefits. Look for the ME-3 strain specifically.
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