I see you're in Kuwait, so you may not have access to the same things I do, but here's a list of food regularly given to my dog
chicken: leg quarters, wings, backs and necks, half and whole chickens, gizzards, hearts.
Turkey, mostly just gizzards and hearts, and ground turkey
Beef: hearts, kidneys, liver, ground, rib bones, knuckle bones, marrow bones, tongue.
Venison, hearts, kidney, various cuts of meat, I also get other wild game from various hunters and family members that they're getting rid of,( moose, bear, elk, etc.
Pork: necks and hearts.
fish, mostly canned salmon and mackerel
cottage cheese, yogurt, fish oil vitamin E supplement, raw eggs (shell and all), i've never fed "balls", but that hurts just thinking about it.