I tend to err on the side of caution. I prefer my grapes to be seedless. My hams and gerbils have had grapes...a small bit, in the past. However, if there are conflicting views about a food, I'd rather be safe and I stop giving it until it is clearly approved. With all the foods hams are allowed, it's no big deal to remove one from their diet. My dwarfs never get fruit...only veggies. Basically, the dwarfs only get broccoli, string beans, romaine and celery. They really don't need more than that.
The Syrians will get carrot, peas, corn and the veggies the dwarf hammies get, along with fruit too.
So basically, I get to eat the grapes all by myself.
