Pharmaceutical preparations and substances for medical, therapeutic, or prophylactic use for enhancing gastrointestinal, dermatological, and immunological health in children and adolescents; naturopathic, probiotic, and synbiotic microbial preparations and substances for enhancing gastrointestinal, cardiovascular, dermatological, and immunological health in children and adolescents; dietetic preparations and preparations adapted for medical purposes; dietary supplements; probiotic formulations, namely, lyophilized powders for medical purposes, in particular, for producing beneficial metabolites, modulating inflammation, increasing beneficial microbes, and inhibiting pathogens in the human microbiome; probiotic, prebiotic, and synbiotic formulations, namely, capsules and lyophilized powders for the gut microbiome of children and adolescents, for supporting healthy vaginal microbiomes in premenarcheal and postmenarcheal females, and for increasing strains of beneficial bacteria in children and adolescents; pharmaceutical preparations for microbiome dysbiosis resulting from the use of antibiotic medications and consumer health interventions for the restoration of balance to a perturbed human microbiome