By KATE MURPHY, MAY 9, 2015
The theory that there might be such a thing as “too clean” food stems from the hygiene hypothesis, which has been gaining traction over the last decade. It holds that our modern germaphobic ways may be making us sick by harming our microbiome, which comprises all the microscopic beasties — bacteria, viruses, fungi, mites, etc. — that live in and on our bodies.
Research so far has focused primarily on the detrimental effects of cesarean births and not breast-feeding, which may inhibit the formation of a robust microbiome, and the use of antibacterial soaps and antibiotics, which diminish the microbiome once it is established.
A result is an immune system that essentially gets bored, spoiling for a fight and apt to react to harmless substances and even attack the body’s own tissues. This could explain the increasing incidence of allergies and autoimmune disorders such as asthma, rheumatoid arthritis and inflammatory bowel disease.