I am aware that it is dangerous for dogs to eat grapes (and chocolate and there are other no-nos), but what is the safe limit for inclusion in dog and cat food? Is this the same limit as established in other countries?
Why would you want to add something that are, or could possibly be dangerous for dogs? Limits vary on different dangerous ingredients. I cover chocolate, Macadami nuts and onions in my booklet, "Bad Eats: The big three foods that are dangerous for your dog". http://tinyurl.com/26ax7fx
I'll be creating a second volume with more dangerous items for dogs soon.
A supplier is suggesting it in small amounts for the health benefits of grapes, especially the anti-oxidants they contain. I question the benefit/risk involved, which is why I posted the question on the safe limits. My inclination is that consumers would resist just seeing the ingredient listed on a label. Do you have information on a safe level for dogs and cats for dehydrated grapes? Does AAFCO have a limit?
I've recently gotten questions about resveratrol for dogs...so far there isn't any definitive research on how many raisins or grapes are dangerous, if there is an individual or breed sensitivity, or even what the toxic agent is or where it is in the grape (pulp, seeds, skins). Whether there's a legal limit or not isn't all that relevant (and that's not something AAFCO would do, anyway).
Just because something is good for humans does not mean it is good for dogs. David gives some great examples, and of course there are many more. If you want antioxidants, there are hundreds of choices that don't involve potential toxins! I agree with David...the only *safe* level is zero.
(Hey David, are you going to have an edition of your book that doesn't require Kindle?)