none of the dogs I have kept over the years have ever eaten vegetables from the plants, they have dug them up though. I remember one time I planted out a load of young plants and I came to water them in the evening and there were plants strewn everywhere, it was so upsetting, especially since I had been planting them out in the heat of the day! [ Only cause I was busy weeding till that time] I remember also one year a neighbours sheep decimated my veg garden, it was terrible and me and my mother were so upset, seeing as we had spent so much time planting, watering and weeding.