Question arises, do we biologically change the functioning of brain by altering the composition of intestinal bacteria using probiotics? Animal studies certainly demonstrate this phenomenon, but is it true in humans as well.
As much as 300 mg of antibiotics is used in production of every kilogram of meat and eggs. Wow!
This use of subtherapeutic doses of antibiotics not only has the potential to alter the meat itself but also what comes along with, i.e. antibiotic resistant bacteria. By the way, small amounts of antibiotics can still be detected in the meat that is ready for you to buy and then eat!
These chemicals transferred to fetus and its developing brain may include maternal antibodies as a result of infection, abnormal neurochemical signals due to altered brain-gut-bacteria communications in mother, absorbed bacterial toxic products with their antibodies as well as potentially noxious semi-digested food products.
Probiotic use during pregnancy and early breast-feeding period is safe and effective in reducing the risk of skin eczema rash or atopic dermatitis in early childhood.
Authors speculated that maternal use of probiotics modulates immune structure/function via the fetus-placental unit during pregnancy. Maternal use of probiotics does impact on gene expression in the placenta as well as the gastrointestinal system of growing fetus.
Microbial transfer and contact of the mother with the growing baby in uterus as well as during delivery and breastfeeding cannot be ignored. In fact early exposures have affect the long term bacterial finger-print of the individual also termed as microbiological programming.