Doubt they'd be bad, but then again I don't know for sure. Some odd random things are toxic to dogs. I found this list of things supposedly dangerous to dogs- Avocado Alcohol Onions/garlic Coffee/tea Grapes and raisins Milk and dairy Macadamia nuts xylitol (sweetener) Chocolate Fat trimmings and cooked bones Peaches and plums Eggs Salt Sugar Yeast dough I find these lists overly cautious though, like if one dog went into one vet as a result of eating one of these things it ends up on the list. And yeah no sunflower seeds so it's probably ok.