That's a good question, I'll do some double-checking....TECHNICALLY, if you open up a wolf and open up a dog their entire insides are more or less identical. But that doesn't necessarily mean anything at all---a pig's insides are almost identical to a human's, and a lemur's are actually damn close too--taking into account size variance, of course. BUT, how they work, how they digest things, may or may not be exactly the same. No matter how identical they are or aren't built, you have to take into account how they LIVE.
For instance, a wolf leads a very active life. Hunting burns SOOOO many calories and so much energy. They travel lots, wander sometimes for no real reason, and really put a lot of miles on those big ol' paws. When they do take down their prey, they consume almost the whole carcass. Let's say a wolf pack takes down a whitetail doe. That doe probably ate loooots of grass, maybe some berries or other small fruits, maybe some apples if they were lucky enough to come across an apple tree, acorns.....a diet largely consisting of roughages and grains. So her digestive system contained a lot of partially digested grains, fruits, etc. So to say that anything of the canine species doesn't necessarily NEED grains doesn't make much sense. (To other readers: Please no attacks on this. This is merely an observation and I started this post to LEARN and get input, not attacks, from other members. So please be respectful.) Along with consuming these partially digested grains, etc, the wolf consumes quite a bit of meat and then may spend quite a bit of time gnawing on the bones of the animal. SOOO, what did that wolf just consume?
-A very high amount of protein
-Partially digested grains/fruits/veggies
~If the doe consumed WHEAT, wheat is known for regulating digestion. Very easy on the tummy.
-BASICALLY, all the nutrients it needs.
Now then, think of the average dog's life. He doesn't burn thousands of calories scarfing down his dinner in his cute little designer bowl. He didn't run 20 miles to Petsmart to get it and then drag it home and rip it open. Lol! You buy it, you tote it home, pour some in a bowl and he munches it down in 10+ minutes or so. No large amounts of calories burned there. If he's lucky enough to have an active owner(which in your case is true) he might get several walks a week, maybe some jogs. But on average, most dogs might be lucky to burn a few calories with a game of fetch. So would you feed your domesticated dog a diet with 40% OR HIGHER protein???? Absolutely not!! This could cause a wide variety of health problems.
But, it IS good, in many aspects to model a dog's diet after a wolves, in this sense: NATURAL diets. Artificial fats, flavors, colors, pfft. No need. Wolves do not INTENTIONALLY go out and eat corn, and even if they do digest some it is already partially digested by whatever ate it first. With "bad" dog foods, often corn may even be the first or second ingredient. Natural, high grade meats are something to shoot for in your dog's diet.
As for the grass....he could have some tummy upset, or he could just be munching grass. Some dogs who are allergic to something in their foods might eat grass--or eat their own poop. NOT that all grass or poop-eating dogs have allergies, that's not the point. Puppies eat grass a lot. If he eats a large amount of grass then you can guarantee something is going to be coming out of one or both ends, and he's either sick or got into something. But munching a little grass once in a while isn't necessarily a sign of illness, sometimes it's even just boredom.
Lol, think I got carried away... :dogwub: