Is there a connection between latex allergy and foods?

Answer 1

Yes.
The rubber plant that latex is made from is related to many common foods such as banana and kiwi fruit as well as some nuts.
If you have a latex allergy most people are allergic to the other related products and even some food products that are not related.

Answer 2

There can be. People who have allergies to foods like kiwi, avocados and certain nuts (among other things) are more likely to be allergic to latex.