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Lactobacillus reuteri

Gut · Bone · Oral health · Infant colic

Tier 2 — Promising

What it is

A versatile probiotic strain with evidence across multiple health areas. The Protectis strain significantly reduces crying time in colicky infants. The ATCC PTA 6475 strain showed a 50 percent reduction in bone loss in postmenopausal women over 12 months. The Prodentis strain reduces gum inflammation and cavity-causing bacteria. One of the few probiotics with strong evidence for bone health. Very safe across all ages.

Efficacy

3/5

Safety

5/5

Research

3/5

Onset

3/5

Cost

3/5

Drug-int.

4/5

Dose

100 million – 10 billion CFU/day; strain-specific: Protectis for colic, 6475 for bone, Prodentis for oral

Time of day & tips

Take with food or a cold drink — heat kills probiotics. Do not mix in hot beverages. Refrigerate if required. Separate from antibiotics by 2 hours.

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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