Nut allergies are common, affecting families across the world – and doctors will tell you to avoid them all to be safe.
Now, a new study out finds half of those who think they're allergic to all nuts aren't.
The research from the American College of Allergy, Asthma and Immunology examined 109 people known to be allergic to a specific nut. Despite blood or skin prick tests that showed sensitivity to other nuts, 50 percent of those patients had no reaction whatsoever.
Very few of those diagnosed with a peanut allergy in the study ended up clinically allergic to tree nuts.
This past January, the National Institute of Allergy and Infectious Diseases said most children by age six months should have a little taste of peanut butter or another food with peanut in it.
Research shows babies exposed to peanut by then are 80 percent less likely to develop a peanut allergy.