HEALTHY AND SAFE PEOPLE FOODS: With over 50% of dogs in the US overweight which increases their risk of CANCER, diabetes, joint issues and pancreatic issues and more, let's cover PEOPLE FOOD. Schnauzers are at a very high risk.
LIST OF SAFE HUMAN FOODS ACCORDING TO PETMD -- (TREATS) TO FEED OCCASIONALLY TO YOUR DOG.
• carrots a few slices cut up cooked or raw (daily/occasionally)
• salt free green beans raw, cooked or frozen, a few to 1/8 cup chopped up (daily/occasionally)
• fresh spinach cooked, romaine lettuce, zucchini, squash (cooked and chopped up, occasionally)
• bananas raw or frozen (1/8 chopped) (occasionally)
• watermelon, strawberry, blueberries, peeled apple (no seeds or core), or cantaloupe (occasionally)
• boiled egg (entire egg once a week and divided over two days diced)
• 1 TB of 2% cottage cheese (daily)
• 1 TB spoon of plain yogurt use 2% -- not low fat or fat free (daily) <~~~~~ Natural Probiotic
• 1/2 to 1 TB daily of 100% BPA FREE canned pumpkin (daily)
• 2 TB to 1/8 cup white or brown rice (a few times a week)
• boneless skinless chicken breast, ground turkey, duck, venison, salmon (few times a week BAKED/BOIL)
• sweet potato cooked (cubed or mashed) 1/8 cup (occasionally)
• DO NOT FEED YOUR DOGS THESE FOODS: anything with artificial sweeteners (read labels it is being added to a lot of foods now), dark chocolate, coffee, caffeine, grapes, raisins, avocados, garlic, onion, macadamia nuts. Some of these foods destroy the kidney, liver or other organs slowly so you get fooled thinking they are not being harmed or were not harmed until it is too late--acute liver or kidney failure. http://www.vetstreet.com/care/human-foods-that-are-dangerous-for-dogs-and-cats
When your dog gets anything extra then reduce the kibble/wet portion that you feed or go on a 20 to 30 minute walk. A fit and trim dog avoids knee issues later, spinal issues, diabetes, pancreatic issues, and other health risks related to excessive weight such as cancer. Schnauzers have high cholesterol NATURALLY so they do not need any help having even more fat in their bloodstream.