Here is an excerpt from Harbingers of a New Age (HOANA), with the link below:

HOANA …you say the bark came back on your older dog?

Mary: Yes! It’s the weirdest thing as I was telling my oil man. In fact she saved our home. We have this finished basement and she was barking and the water was coming out of our pipes everywhere all over the basement. I mean, she saved us from a real disaster.

HOANA: Before this, she couldn’t bark?

Mary: She could not bark. Telling this to the oil man, he said, “What kind of a dog is it?” And I said “vegetarian.” And he just looked at me. To me it’s the only thing different. She didn’t bark for two years. She wasn’t eating vegetarian before, just the canned dog food.

Bambi Got Her Bark Back (mixed Whippet, 15 years old)  (upon opening, click back button to view picture)