01 Sep 2021 --- Swedish probiotics company Probi is reporting that two of its probiotic strains – Lactiplantibacillus plantarum HEAL9 and Lacticaseibacillus rhamnosus 271 – are well tolerated in newborns’ gut microbiomes. The Nature-published study showed supplementing with the strains increased infants’ levels of lactobacilli in the intestine and their microbiota was positively affected by the intake of the probiotics.