I did quite abit of research on this very subject prior to spending money on a hunting dog. I wanted to be sure and get it right and make no stupid mistakes. What I found was that a dog can eat basically everything but not all the time. Veggies are great for a dog and welcome at any time. Peanutbutter and Jelly sandwiches for hunting energy. Aviod raisins, onions (I dont think a dog would eat them anyway), grapes, oranges and grapefruit. Watch out for what your dog may be chewing on when in the field. Maybe that flower will turn out to be toxic and there is always loco weed (not marijauna) to contend with in certain areas. This stuff has killed cows and horses, tastes great to them, so they'll want to investigate when/if found. I try and catch everything my dog puts in her mounth, doesnt always work, but I try. We had a Lab that once consumed 32 oz of oil base paint, 12 oz JB weld and hardener, and a 2 oz vile of Crazy Glue, then washed it all down with a 1 lb bag of M&M's. This all went down within 10 minutes! When I realized what had happened I told my kids they had better play with him now because he'd be dead in a couple hours. Damn hound never batted an eye and ran around like nothing even happened. That was three years ago and he's still kickin today. You just never know I guess.