Nutrition for senior dogs: what changes as they age and how to adapt their diet

Nutrition is one of the most important pillars for ensuring a healthy old age for your dog. The nutritional needs of senior dogs are significantly different from those of younger adult dogs, and adapting their diet can make all the difference in their quality of life during their later years.

At what age is a dog considered "senior"?

The age of transition to the senior stage varies according to size:

• Small breeds (less than 10 kg): from the 10-12 years
• Medium breeds (10-25 kg): from the 8-9 years
• Large breeds (25-45 kg): from the 7 years in the Making
• giant breeds (over 45 kg): from the 5-6 years

What changes in the body of an older dog?

• Lower basal metabolic rate: You need fewer calories to maintain your weight
• Progressive loss of Muscle mass (sarcopenia)
• increased risk of arthritis and joint pain
• Kidney and liver function that may deteriorate
• Less efficient immune system
• Poorer nutrient digestibility
• Possible cognitive impairment (cognitive dysfunction syndrome)

Nutritional keys in the diet of the senior dog

Protein: more quality, not less quantity

Contrary to popular belief, healthy older dogs need the same amount of protein, or even more, than younger adults to prevent muscle loss. What changes is the need for high-digestibility, high-quality protein . Only if kidney disease is confirmed will a veterinarian recommend protein restriction.

Controlled calories

A slower metabolism means lower energy expenditure. Many older dogs tend to gain weight if they maintain the same ration as adults. Specialized senior dog foods have a lower calorie density and a higher, adjusted protein-to-fat ratio.

Omega-3 fatty acids

EPA and DHA have an anti-inflammatory effect on the joints and a neuroprotective effect on the brain. They are highly recommended for older dogs, especially those with arthritis or signs of cognitive decline. You can find them in specific omega-3 supplements for dogs.

Antioxidants

Vitamins E, C and beta-carotene help combat oxidative stress associated with aging and strengthen the immune system.

Moderate phosphorus

Excess phosphorus can damage the kidneys in the long term. Well-formulated senior dog feeds control this mineral preventively.

Prebiotic fiber

It promotes intestinal transit (a frequent problem in older people) and maintains a balanced intestinal microbiota.

Dry, wet, or mixed food?

Wet food has advantages for older dogs: greater palatability (many senior dogs lose their sense of smell and appetite), better hydration, and it's easier to chew for dogs with dental problems. Combining dry kibble with quality wet food can be the best option.

Signs you need to review your senior dog's diet

• Weight loss or excessive weight gain
• Dull coat or hair loss
• Lower energy than expected for his health condition
• Frequent digestive problems (vomiting, loose stools)
• Less interest in food

Conclusion

Adapting your dog's diet to their senior years is one of the best investments you can make in their health. A high-quality food specifically formulated for their age and size, combined with appropriate supplements and regular veterinary checkups, can add years of quality to their life.