Unlucky Company Names

In the 60's and 70's there was a dietetic candy called Ayds.
Users were supposed to chew a couple of the little caramel candies and drink something hot before meals and they'd swell up and decrease your appetite.
Their slogan was, "Lose weight with Ayds!"
Now comes another product.
"Hey Karen, did you get any Spam today?"
"Tons, but I deleted it."
Those poor Spam makers in Minnesota now have their somewhat good name sullied by association with junk e-mail. Who can they sue? Who started it?
I'd feel sorry for them if Spam the food wasn't some horrible mystery treyf swine I'd rather die than eat.