“That is the equivalent of preventing 10,000 out of the roughly 13,000 cases of peanut allergy each year.”
Start peanut between four and six months and allergies drop 77%. Wait until age one and the cut is only 33%. Families were once told to avoid peanut until age three, and one in 50 UK children now has the allergy. Decades of official caution helped build the problem it was meant to prevent.