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Limosilactobacillus reuteri DSM 17938

Infant colic · Gut health · Bone density

Tier 2 — Promising

What it is

One of the most studied probiotic strains in paediatrics. Cochrane reviews confirm L. reuteri DSM 17938 significantly reduces crying time in breastfed infants with colic. Also improves functional constipation in children and adults. Note: widely-cited "bone density" findings in older women come from a different L. reuteri strain (ATCC PTA 6475, Nilsson 2018) and should not be attributed to DSM 17938.

Efficacy

4/5

Safety

5/5

Research

3/5

Onset

3/5

Cost

3/5

Drug-int.

5/5

Dose

100 million to 1 billion CFU/day; established for infant colic, functional GI disorders, and emerging bone density data

Time of day & tips

For infant colic, give drops directly or mix into expressed breastmilk. For adults, take with or without food. Strain-specific — other L. reuteri strains do not have the same evidence.

Sensitive populations: This supplement's evidence base touches pregnancy, pediatric, or other sensitive populations. Confirm any change with your healthcare provider before use.

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