Taking Dried Fruit & Nuts Into England?

Up to 2 kg seems to be permitted of permitted foods from outside the EU. We are not Australia, New Zealand or the US! However if in doubt eat it on the plane, leave it at home or declare to HM Customs. You should be able to get most of what you want in most supermarkets and health food shops this side of the Atlantic.

Among the long list of probing questions that British Immigration officers ask upon entry, I don't remember any relevant agricultural or customs questions. I don't think you'll have a problem, but also don't need to carry more than enough to get you through the first jet-lagged night. Nobody knows whether there are more Pret a Manger or Starbucks shops in London, because there are too many to count.)

Mary,
I would only take what you need for one day. If the package is sealed you are better off than if they are opened. As others have stated, you can find just about anything in the stores of the UK. Shopping in a store in different country is another experience you should not miss. I would rather shop a food type store vs. a clothing store, they can be so much different than what you have in the US. Have fun with your travels.
Judy

In November I flew to London with two large bags of walnuts and dark chocolate chips. I always pack nuts and sometimes dried fruit to eat on the plane, and to have in the hotel (until I have gobbled them all up!) for snacks at night. London is crazy expensive, so I do it both because I am vegan and because I am cheap! :-)

Since you can get bulk nuts for cheap in the USA, you don't lose that much even if someone at the airport tells you to throw them away, and that has never ever EVER happened to me, in 35+ years of traveling.

I did have to throw away a jar of sorghum when I tried to get it on a plane from Iowa to Seattle... but that's another story.