Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Lactobacillus acidophilus is a probiotic bacterium commonly found in the human gut and widely used in fermented foods and supplements. Its use for supporting or treating constipation in adults is based on some scientific evidence, though the quality and consistency of this evidence are moderate at best. Several clinical trials and reviews have evaluated probiotics, including L. acidophilus, for their effects on bowel regularity and constipation symptoms. Some studies suggest that certain probiotic strains can help improve stool frequency and consistency in adults with constipation, potentially by modulating the gut microbiota, enhancing intestinal motility, and producing short-chain fatty acids that can stimulate bowel movements.

However, the evidence specifically for L. acidophilus as a single strain is limited. Most positive studies have used multi-strain probiotic preparations containing L. acidophilus along with other species, making it hard to attribute benefits solely to this bacterium. Systematic reviews (such as one published in Alimentary Pharmacology & Therapeutics, 2017) generally conclude that probiotics may have a small but significant effect in relieving constipation, but emphasize that results are strain-specific and not universally effective. There is also variation in dose, study duration, and patient populations.

In summary, while there is scientific rationale and some supportive evidence for the use of L. acidophilus-containing probiotics in managing constipation, the evidence is not robust or specific enough to warrant strong recommendations, and the benefit, if any, appears to be modest.

More about Lactobacillus acidophilus
More about Constipation (adults)

Other ingredients used for Constipation (adults)

Other health conditions supported by Lactobacillus acidophilus

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