Dean Hochman / Flickr

A group of allergy researchers in Seattle is releasing new recommendations that mark a complete turnaround from the conventional wisdom on when to introduce peanut products to babies. The guidelines come in the wake of a recent major study.

Doctors used to say parents shouldn’t let kids even try peanuts until age three. The American Academy of Pediatrics dropped that advice after incidence of peanut allergy continued to climb, quadrupling between 1997 and 2010.

Josh Kenzer / Flickr

Peanut allergies have been rising dramatically – enough so that many elementary classrooms have banned peanuts. About four times as many children have peanut allergies today as 20 years ago.

The severe form of peanut allergies can be deadly, which is why thousands of people must carry around an adrenaline shot (called an epinephrine pen, or "epi-pen").

Now, allergy doctors are debating whether they should offer an experimental allergy treatment. It was a topic this past weekend, at the 2012 Northwest Allergy Forum in Seattle.