A lot of people say to me "How can I prevent my next baby from developing allergies?" And people have gone through all sorts of measures, there's not a lot that's been shown to make much difference.

There's an interesting study that's going on called the LEAP study which is being run in London. And what they're trying to do, this relates to peanut allergies, is actually give children exposure to the allergen at an early age rather than the conventional wisdom which is to hold back until he's four or five but giving peanuts to babies who are perhaps five or six months of age so that they're introduced to early into the body so the body recognizes them as not a bad substance.

So that may be one area we need to think about; a more widespread earlier introduction of foods may help matters.