I wonder if nut allergies are more about the way nuts are processed than the actual nut itself. I know some nuts like cashews use quite a lot of chemicals to get them out of their shell and peanuts are planted in the same fields as crops with heavy pesticide use.
And that's when I realized I wasn't wearing any pants. Maybe this tiny ad has pants:
Edible Landscaping With A Permaculture Twist/ Second Edition - Kickstarter