Lemons & Limes

To start off, good luck with getting your furry friend to even get near a lemon; there are plenty of hilarious videos on the internet about dogs showing their disgust for them. Regardless, consuming any part of a lemon or lime — from the rind to the flesh to the juice — is very toxic for dogs.  If your dog happens to consume either of these fruits, he or she might experience side effects like diarrhea, throwing up and even unusual light sensitivity.