Nursing mothers that supplemented with the probiotic Lactobacillus reuteriis for 3 weeks were twice as likely as a placebo to reduce crying by 50% in colicky babies who are exclusively breastfed.

This new study is in line with another recent study that also showed mothers who supplemented with the probiotic Visbiome during late pregnancy and, while nursing, lowered inflammatory biomarkers in the breastmilk and improved symptoms of colic in their newborns as a downstream effect of that.

I am actually taking 1 sachet of Visbiome (no affiliation) a day while I’m breastfeeding. One sachet contains 450 billion live probiotic bacteria (6 different strains). It’s important to realize that store-bought probiotics have almost certainly been impacted by the deteriorating effects of the supply chain that it took to get them on the shelf in the store… and even if that weren’t the case, usually they have only a VERY small fraction of the dose that clinical strength probiotics like Visbiome and VSL#3.

Visbiome study link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5133065/