Nursing mothers that supplemented with the probiotic Lactobacillus reuteriis were 2x as likely as a placebo to reduce crying by 50% in colicky babies.
“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.”