If your dog constantly sheds, scratches, or chews at sore spots on his skin, allergies may be to blame—and his diet could be playing a major role. What a dog eats directly influences skin health, coat condition, overall wellness, and even long-term quality of life. In today’s post, we’ll explore how dog nutrition affects the skin and coat and why dietary adjustments may help relieve common problems.
Roughly one in four veterinary visits for dogs involves concerns related to skin and coat health. Some of the most frequently diagnosed conditions include:
-
Allergies, including reactions to flea bites
-
Skin cancers
-
Bacterial skin infections
-
Seborrhea
-
Parasitic conditions such as mange
-
Food intolerance or hypersensitivity
-
Immune-related skin disorders
-
Hormone-related skin conditions
Poor nutrition has a significant impact on a dog’s skin and hair. Nutritional deficiencies often develop in dogs fed homemade diets that are not properly balanced over long periods. Over time, these dogs may lack essential vitamins and minerals needed for healthy skin. Deficiencies can also occur when dogs are fed low-quality commercial dry dog food that contains poor protein sources or insufficient nutrients.
Dogs have different dietary requirements depending on their life stage, which is an important factor when selecting food. Puppies need more nutrients to support growth and higher activity levels, while adult dogs require balanced maintenance diets. Senior dogs, whose metabolism and activity levels often slow, need formulas that support aging joints, digestion, and skin health.
If you notice changes in your dog’s coat or skin, it’s best to consult your veterinarian. A dietary adjustment may be recommended if your dog experiences any of the following:
-
Thinning, brittle, or dull hair with split ends
-
Hair that grows slowly or fails to regrow after trimming
-
Dry, flaky skin or dandruff
-
Persistent sores or hot spots
-
Changes in coat color or unexplained hair loss
Nutrition-related skin problems often stem from:
-
Insufficient fat content in food
-
Low-quality or poorly digestible protein
-
Nutrients that are difficult for the body to absorb
-
Excessive amounts of certain nutrients that interfere with zinc absorption, which is essential for skin health
Protein and calories are critical for maintaining a healthy coat. When a dog’s diet lacks adequate protein or fat, hair loss may occur, and coat color may fade. A nutritionally poor coat often appears dry, lifeless, and fragile. Adult dogs should generally consume food containing 25–30% protein and 10–15% fat on a dry matter basis.
Puppies have slightly higher nutritional demands. Their food should contain 30–35% protein and 15–30% fat on a dry matter basis, and they should be able to digest more than 80% of the nutrients in their diet to support proper growth.
Dogs also require essential fatty acids (EFAs), which their bodies cannot produce on their own. EFAs must come from the diet. When a dog is deficient in these fats, symptoms may include dry, flaky skin, excessive matting, reduced skin elasticity, and frequent ear infections. Ensuring the diet contains linoleic acid, which should account for just over 1% of total food intake, can help resolve many of these issues.
Minerals also play a vital role in coat and skin quality. A lack of copper may result in a dry, patchy, or faded coat. Zinc deficiencies can lead to hair loss, thickened or cracked skin, ulcers, and irritation around the joints or paw pads.
Even if your dog’s skin problems aren’t solely caused by diet, proper nutrition can still offer relief. Dogs with itchy or inflamed skin may benefit from Omega-3 fatty acids, particularly those derived from fish. Omega-3s help reduce inflammation, which can lessen itching and scratching.
For dogs with allergies, Omega-3 fatty acids may also reduce the need for antihistamines. When selecting a supplement, choose one sourced from cold-water marine fish. Always consult your veterinarian to determine the correct product and dosage for your dog.
When it comes to your dog’s health—especially nutrition—your veterinarian is your most valuable resource. If you have concerns about skin issues, allergies, or diet, professional guidance ensures your dog receives the nutrients needed for a healthy coat and a comfortable, happy life.
This post is brought to you by Rocky Mountain Pooper Scoopers. They proudly serve the Greater Salt Lake City area, including Sandy, West Jordan, and Taylorsville, offering dependable and affordable pet waste removal services. Call (385) 392-0791 today for your free estimate—weekly rates start at just $18.00. Visit their website at rockymountainpooperscoopers.com to read reviews and learn more.
Happy Tails!
