Early last year, in a colossal U-turn, the NIH's National Institute of Allergy and Infectious Diseases (NIAID) issued updated clinical guidelines advising parents to feed peanuts to infants at an early age to prevent the onset of dangerous allergies. More than a year later, parents - who for years were warned to do the exact opposite - are either unaware of the new guidelines or still wary of the recommendations, according to the latest research.