Question about feeding hens mixed nuts...

[TumbleweedChick]

This might sound weird, but I was wondering if I feed my hens some mixed nuts would I need to warn my cousin when I give her eggs...she has an allergy to Brazil nuts??? I didn't know if any of the "nuttiness" would end up in the egg or not

 

[Sir Birdaholic]

I heard cashews aren't good for dogs, so I'd be hesitant about it.