Care and Feeding

Giant-breed puppies grow at a remarkable rate, often reaching approximately half of their eventual adult weight by around five months of age. During this period, they may increase in height by about 2 cm every two weeks until roughly eight months old. Because of this accelerated development, correct weaning practices are essential to support strong, healthy growth.

Nutrition plays a critical role in managing growth speed and preventing issues such as excessive weight gain and joint stress. Diets for giant-breed puppies should provide controlled energy and moderate fat levels, rather than overly rich formulations. Adequate support for bone development, joint strength, and immune function is vital during this stage.

Although physical growth slows after the first year, full maturity is only reached between 18 and 24 months, with most dogs achieving around 90% of their adult size by 18 months. Careful monitoring of body condition and growth patterns throughout this time is essential for long-term soundness.

Studies of natural canine populations, such as wolves, show very low rates of hip dysplasia. This is believed to be linked to natural movement patterns, limited access to excessive food, and the ability to regulate activity levels freely. Encouraging steady, natural exercise and allowing dogs to move at their own pace can positively influence joint health and overall well-being.

Nutritional anemia in dogs is more common than many owners realise and is frequently underdiagnosed. Iron deficiency is one of the leading causes and can occur when diets lack sufficient bioavailable nutrients. Proper red blood cell production depends not only on iron, but also on adequate protein, vitamins, and minerals such as folates and vitamin B complexes. Iron from animal-based sources is absorbed far more efficiently than iron from plant ingredients.

Iron is primarily stored in haemoglobin and ferritin within the body, making high-quality protein intake essential. Growing puppies, pregnant females, and lactating mothers have increased iron requirements, and deficiencies during these stages can have lasting effects. Puppies are especially vulnerable, as their iron reserves decline rapidly during the first months of life, particularly if the mother’s diet was inadequate during pregnancy.

Many commercial dog foods rely on lower-quality, non-heme iron sources derived from inexpensive ingredients. Compounds such as phytates and phosphates, commonly found in processed foods, can further reduce iron absorption. Including vitamin C–rich ingredients may help improve iron uptake, while a diet based on biologically appropriate ingredients supports optimal blood health.

Iron deficiency may present subtly, but it can affect learning ability, energy levels, and behaviour over time. For this reason, owners should remain aware of the potential limitations of commercial diets and consider natural, nutrient-dense food sources when aiming for truly balanced nutrition.

Vitamin D is another essential nutrient, responsible for regulating calcium and phosphorus balance in the body. However, unlike many vitamins, excess vitamin D can be extremely dangerous. Surplus amounts are stored in fat tissue and may lead to serious complications, including kidney failure. Dogs can ingest excessive vitamin D through certain foods, supplements, or accidental exposure to rodenticides containing cholecalciferol.

Symptoms of vitamin D toxicity may include vomiting, increased thirst, appetite changes, and weight loss. Immediate veterinary attention is critical if toxicity is suspected. Diagnosis often involves reviewing dietary history, evaluating food labels, and monitoring calcium and phosphorus levels. In recent years, several dog food recalls have occurred due to excessive vitamin D levels, highlighting the importance of vigilance and proper reporting.

To enhance dietary quality and increase protein intake, natural foods such as eggs, fish, meat, and small amounts of cheese can be added where appropriate. Eggs provide complete protein with essential amino acids that support muscle development and energy. Fish offers valuable omega-3 fatty acids that benefit skin health, coat condition, and inflammation control. Meats such as beef, chicken, turkey, lamb, or duck align with a dog’s carnivorous nature and contribute to strength and vitality. Cheese can supply fats and calories but should be fed cautiously, especially in dogs sensitive to lactose.

A balanced canine diet may also include carbohydrates and supportive ingredients such as rice, potatoes, oats, sunflower oil, yoghurt, fruits, vegetables, and herbs. When thoughtfully combined, these ingredients can support muscle development, immune health, and overall condition. Nutrition works best alongside regular, appropriate exercise, ensuring dogs develop both physically and mentally in a healthy, sustainable way.