Semi sweet chocolate chips made my Sheltie very sick. He was a real chocoholic and got the odd M&M or two, but he got in a grocery bag and found the dark chips. The dark chocolate is MUCH worse than milk.
I had a long haired chihuahua/Pom mix who ate M&M's every day of his life. Lived to be almost 19. Go figure.
No chocolate is probably best, but that dark kind is the worst.
Never knew about grapes and raisins. Good to know for future reference. Thanks!
I went to a dog show and the handlers were giving the show dogs M&M's . My Maltese won't eat unless he has a couple of them broken up in his dish! :-0