LactoSpore®

The short answer

LactoSpore is Bacillus coagulans, a spore-forming probiotic. The spore is the point: it survives stomach acid and bile, germinates in the intestine, and does not need refrigeration or an enteric coating to arrive alive.

The form, and why it matters

A spore former rather than a Lactobacillus or Bifidobacterium strain. That distinction matters, because the common gut bacteria in yoghurt are largely killed by stomach acid unless the product is specially protected, and the spore is a structural answer to that problem.

Typical dose

Probiotic doses are given in colony forming units, not milligrams. LactoSpore products are typically standardised to a CFU count per serving; Keel carries 166 mg of the standardised preparation, and the CFU count is on the supplier's specification sheet.

What the research shows

Probiotic research is strain-specific, which is the honest caveat: a result for one Bacillus coagulans strain does not automatically apply to another. The general finding across strains is support for gut comfort and regularity rather than a treatment for anything.

Who should be careful

People who are severely immunocompromised or have central venous catheters should talk to a clinician before taking any probiotic, because rare cases of bloodstream infection have been reported in that group.

Where it sits in our formulas

Sources

• Majeed et al., Bacillus coagulans MTLK-11 supplementation, a review of clinical applications

Figures checked against the sources above on 21 September 2026.