Poor nutrition can cause or contribute to a range of common dog illnesses, including obesity, pancreatitis, diabetes, gastrointestinal issues, heart disease, cancer, and skin conditions. A balanced, nutritious diet is essential for keeping dogs healthy, supporting a strong immune system, healthy bones, normal cell function, and a shiny coat.
Seven conditions linked to diet
Pure Pet Food, a West Yorkshire-based brand, highlights these seven conditions on its blog, urging owners to be aware of the risks.
Obesity
Obesity is one of the most common and preventable health problems in pets. It occurs when a dog carries too much body fat, leading to a shorter lifespan and increased risk of diabetes and heart disease. Unhealthy diet, overfeeding, and lack of exercise are typical causes. Regular physical activity and a high-quality diet in appropriate amounts can help prevent and manage obesity.
Pancreatitis
High-fat and high-carbohydrate foods can make the pancreas work harder, increasing the risk of pancreatitis. Dogs recovering from this condition need a carefully monitored diet, avoiding high-fat foods and treats to prevent flare-ups. Symptoms often include vomiting, reduced appetite, painful abdomen (sometimes shown by a prayer position), diarrhoea, and weight loss.
Diabetes
Diabetes mellitus, the most common type in dogs, occurs when the body doesn't produce enough insulin. A poor diet is often a contributing factor. Dogs with diabetes may need lifelong insulin treatment, and a high-quality diet can help stabilise blood sugar levels. Early symptoms include increased thirst, increased hunger, peeing more, weight loss, and lethargy.
Gastrointestinal illnesses
Diet is often a major factor in digestive issues such as stomach upsets, colitis, gastroenteritis, and gastritis. Feeding highly digestible, good-quality food can help treat and prevent these problems. Symptoms of gastroenteritis may include diarrhoea, vomiting, reduced appetite, lethargy, abdominal pain, and blood or mucus in the stool.
Heart disease
Like humans, dogs can develop heart disease when fatty deposits build up in arteries, often linked to poor diet and lack of exercise. While age, breed, and past infections also increase risk, good nutrition and regular exercise are crucial for prevention. Symptoms include coughing, breathlessness, lethargy, exercise intolerance, heart murmur, collapse, weight loss, and abdominal swelling.
Cancer
Cancer is common in dogs, and while causes vary, a healthy, balanced diet can help lower risk. Maintaining a healthy weight is also important, as obesity increases cancer risk. Some studies suggest diet may affect cancer progression and improve quality of life after diagnosis. Common cancers include skin, mammary, testicular, bone, and immune system cancers.
Skin and fur conditions
Nutrient deficiencies often show in a dog's skin and coat, leading to dull, dry, brittle fur, itching, thinning fur, or hair loss. Poor diet is a major cause of recurring skin problems, but nutritious food can strengthen the skin barrier and reduce allergen irritation. Food allergies can also trigger skin issues, so avoiding problem ingredients is essential.
