HOW TO MAKE THE FOOD YOU FEED BETTER
Omega 3’s (how to choose)
Vegetables (which vegetables)
Eating an adequate diet is not the same as eating an optimal diet. Eating less processed foods and more fresh foods is better for both us and our dogs. “Dogs, like people, need some fresh whole foods.” “many long-term studies have shown that vitamins, minerals, and antioxidants from whole foods are more nutritious than the synthesized or refined forms found in most dog foods.”  “Dry dog foods have two significant nutritional limitations, both of which are easy to correct: they contain unbalanced and, at times, rancid fats, and they require the addition of fresh foods for “complete” nutrition.” 
“Dog owners need to be aware that the meat used in most modern dog foods almost always comes from commercial feedlot animals.” “Even most dogs fed homemade diets do not eat the proper balance of fats because modern feedlot animals have different amounts and balance of fats than do wild prey animals. Poorly balanced fats are one of the major weaknesses of almost all commercial and most homemade dog foods. Fortunately, it’s easy to correct.” 
Research is showing that when dogs have fresh foods (vegetables) added to their diet it improves their microbiome. “The gut microbiota of dogs is significantly influenced by diet type (i.e., natural diet and commercial feed). Specifically, dogs fed a natural diet have more diverse and abundant microbial composition in the gut microbiota than dogs fed a commercial feed.”  (See studies listed below)
Adding fresh vegetables to a dog’s bowl three day a week has been shown to reduce cancer risk between 70-88% in one study.
Since the goal is to rotate and feed a variety of differing proteins and brands of food over time to help correct for any excesses, insufficiencies, or imbalances. Select several quality foods with a with a similar protein, fat, and calorie content to compare and make a decision on what to feed. With the Pet Food Math Cheat Sheet you can run the math to analyze and compare any type of pet food. Dry kibble, canned food, baked kibble, freeze-dried, raw, etc. You can get a free copy of the Pet Food Math Cheat Sheet here.
Rotation & Variety
Since the goal is to rotate and feed a variety of differing proteins and brands of food over time to help correct for any excesses, insufficiencies, or imbalances. Select several quality foods with a with a similar protein, fat, and calorie content to compare and make a decision on what to feed.
With the Pet Food Math Cheat Sheet you can run the math to analyze and compare any type of pet food. Dry kibble, canned food, baked kibble, freeze-dried, raw, etc. You can get a free copy of the Pet Food Math Cheat Sheet here.
Watch the video below to see how to improve both dry kibble and raw/fresh food diets.
Steve Brown - Recommendations to add to food.
Fresh & Raw Frozen
Kelp (just a pinch)
Dry Food (kibble)
I would select a high protein, low carb food with quality ingredients and then supplement it with these recommendations. Evaluate foods with the Pet Food Math Cheat Sheet.
Sardines (water or olive oil)
Dog’s Weight 3.75-oz can sardines
5 lbs 1/4 can per week
15 lbs 1/2 can per week
25 lbs 5/8 can per week
50 lbs 1 can per week
100 lbs 1 3/4 cans per week
A 3.75-ounce can of sardines has about 200 calories, so reduce the amount of dry food given on “sardine days” accordingly. Rule of thumb: One can of sardines in water has about the same number of calories as ½ cup of most dog foods
Dr. Karen Shaw Becker -
Inexpensive recommendations to add to dry food. (Video)
Dry Food (kibble)
Eggs 1 large
Calories from Fat 45
Dogs were grouped by how often they consumed the following vegetables: green beans, broccoli, cabbage, cauliflower, brussels sprouts, carrots, corn, peas, celery, various squashes, cucumbers, zucchini, sweet potatoes, spinach, kale, turnip or mustard greens, iceberg or head lettuce, romaine or leaf lettuce, green peppers, garlic (fresh or powdered), and tomatoes.
“study detected no distinctions between consumption of raw or cooked vegetables”
“Evaluation of the effect of dietary vegetable consumption on reducing risk of transitional cell carcinoma of the urinary bladder in Scottish Terriers”
CANCER REDUCTION 70% - 78% - 88%
Most dogs do not eat balanced fat diets, and consume little, if any, docosahexaenoic acid (DHA), probably the most important fat for the brain and eyes. Even most dogs fed homemade diets do not eat the proper balance of fats because modern feedlot animals have different amounts and balance of fats than do wild prey animals. Poorly balanced fats are one of the major weaknesses of almost all commercial and most homemade dog foods. Fortunately, it’s easy to correct. 
150 mg epa/dha day per 10 lbs
Phospholipid 90-95% absorption
Triglyceride 80-90% absorption
Ethyl Esters 60-70% absorption
Eggs have only a small amount of EPA/DHA; a 50lb dog eating 1500 kcal day would need to eat to meet min requirement:
5 grocery store eggs
2.5 free range eggs
2-5 tsp phytoplankton
¼ - 1 tsp algae oil
Glass (Amber) (not plastic)
Oxygen degrades oil
Exposed to air will go bad in 7-days
Choose a product that uses 3rd party testing – especially for pet grade. Consider using a human grade product recommended by ConsumerLabs.com
“some dry foods, most often premium puppy foods, do include fish oils, a primary source of omega-3 DHA. The problem is that DHA is very fragile—think fish kept at room temperature. Although the original DHA content of the food is listed on the bag, it is not necessarily the amount of DHA that is in the food when you feed it to your dog.” 
Don’t over dose; more is not better.
“Side effects to consider,” says Dr. Linder “include diarrhea and, in extremely high doses, bleeding problems” because omega-3s “thin” the blood. Admittedly, the occurrence of such problems is on the rare side, but to insure your dog stays safe, give omega-3 supplements to your dog with your vet’s knowledge so she can monitor her for any untoward effects. Tufts Cummings School’s HeartSmart website advises that for every 10 pounds of body weight, a dog should get one gram of fish oil that contains 180 milligrams of EPA (eicosapentaenoic acid) and 120 milligrams of DHA (docosahexaenoic acid). The site also advises choosing a brand from ConsumerLabs.com, which does testing for quality. Don’t give your dog fish oil in the form of cod liver oil. It can be tox
ABC Plan One Day A Week
Steve Brown offers a simple ABC plan to feed your dog one day a week a fresh foods and skip the kibble in his book “See Spot Live Longer the ABC Way.”
Research & Studies
“This study found that over half of the supplements did not meet their label claims for EPA and DHA, and a quarter exceeded recommended limits for peroxide value.”
“Median life span was significantly longer for dogs in which food was restricted. The onset of clinical signs of chronic disease generally was delayed for food-restricted dogs.”
 Brown, Steve. See Spot Live Longer the ABC Way. Dogwise Publishing.