Hi everyone! Thank you so much for the replies and apologies for this late response.
When I first got the puppy I was aware he was a cross between a ACD and *something*. He didn't look like a pit until he started growing a few weeks after adopting him and I did a DNA test. I grew up with a pit/lab and love pits so it was no problem. I was forewarned about how active he would be but the rest of his littermates were adopted by people in the city. I live in the suburbs, have a big back yard, a decent sized house, great parks around to bring him to--I figured if the other adopters were doing it while living in city apartments with no/or tiny backyards, keeping him happy and active would be no problem for me.
Since my OP, the muzzle arrived and I put it on him once. He actually calmed down quite a bit but I do worry about him hurting himself so I will likely never use it again. If I'm going out for less than 2 hours I'll usually crate him but if I'll be gone for longer, I don't have the heart to leave him locked up and give him free range of the kitchen area. Plus he is LOUD when he wants to get out and I have very petty, retired neighbors who I can see giving me a hard time if he starts barking. It's just been rough because I never know what mess I'll come home to. You could leave him in a completely empty room and he'd still find a way to destroy it. I went to the doctors yesterday about 45 mins away from my house. I left the dogs in the kitchen after playing with them all day, new high gates locked, petcam on, food away, anything in reach away, garbage can closed and weighted, etc. I came home about 3-4 hours later and he had jumped up about 6 feet to a small plastic bag hanging on a hook in the kitchen, ripping it open, letting the contents (some extra garbage) onto the floor and then ripping that up. Not a big deal and it was my fault for leaving the bag out, but my gosh, what am I doing wrong? Before leaving, I stuffed kongs, put treats in a ball maze, took out a new bone, along with leaving all their toys out.
I've since put the dogs in a doggie daycare for when I'm at work and that seems to help quite a bit. The puppy came home exhausted his first day. I'm not stressed about whats happening to the house and they can play with other dogs. Getting rid of him is not an option and I'll do everything I can to accommodate his energy level.
To answer the food question---the boys get Whole Earth Farms Grain-Free dry food. I change up the flavor once in a while from beef to salmon, but mainly it's their chicken/turkey recipe. They have WEF wet food once in a while. They also eat a lot of fresh fruit (mainly bananas, apple slices and blueberries) and fresh vegetables (mainly carrots) between meals. I also blend in coconut oil with plain yogurt/bananas for stuffing their kongs. I was concerned with natural/healthy foods but good point, jagger, I didn't even consider that. I will definitely look into the amount of protein/carbs/etc they are getting.
Thanks everyone, every response was appreciated.