Why older dogs have different nutritional needs
Changing your dog’s diet to meet their evolving needs mean you’ll maintain their quality of life, mobility, and muscle mass.
Most breeds of dog are considered to be senior from around ten years of age. As your dog gets older their body naturally changes, so you need to make sure you cater for their needs, such as:
- Need for more high-quality protein
- Alterations to metabolism
- Managing their joint health
- Potential changes to brain and cognitive ability
- Reduced digestion capacity
- Increased hydration needs
- Changing dental needs
As dogs age, their metabolism, activity levels, body composition, and digestive efficiency can change. Many older dogs become less active and need fewer calories, while at the same time they may lose muscle mass, a process known as sarcopenia. This creates the challenge of maintaining muscle without promoting unhealthy weight gain.
7 dietary changes you should make as your dog ages
These are crucial dietary changes to consider when caring for an older dog:
1. The importance of high-quality protein
We generally emphasise maintaining adequate, high-quality protein intake to help preserve lean muscle mass in healthy senior dogs. Protein restriction is typically only appropriate when recommended by a vet for specific medical conditions, such as advanced kidney disease.
2. Managing weight in older dogs
Obesity is one of the most common nutritional concerns in senior pets. Reduced activity levels can lead to weight gain, which increases strain on joints and may worsen mobility problems. Some senior dogs experience the opposite issue and lose weight because of muscle loss, poor appetite, or underlying disease. If in doubt, speak to your vet or nurse about your dog’s individual needs.
3. Joint-supporting nutrients
Many senior dog foods include ingredients such as glucosamine, chondroitin, and omega-3 fatty acids. These nutrients are often added to support joint health and mobility, which are common concerns as dogs age.
4. Brain health and cognitive ageing
Senior dogs can experience age-related cognitive changes similar to dementia in humans. Some diets are formulated with omega-3 fatty acids, antioxidants, and other nutrients aimed at supporting brain function and healthy ageing.
5. Digestive health and fibre
Ageing can affect digestion, and some senior dogs benefit from increased dietary fibre. Fibre may help with gastrointestinal health, weight management, and promoting regular bowel movements.
6. Hydration becomes more important
Older dogs may be more vulnerable to dehydration, particularly if they have health conditions that affect thirst or kidney function. Wet food, keeping their water bowl filled up, and hydration monitoring can become more important as your dog ages.
7. Dental health and food choice
Dental disease is common in older dogs and can make eating uncomfortable. Some senior dogs may prefer softer food textures or specially designed kibble that is easier to chew.
There is no universal definition of "senior dog food"
A useful, often overlooked point is that there is no standard legal definition for "senior" dog food. Different manufacturers formulate senior diets differently, with varying calorie, protein, fat, and nutrient levels.
However, nutrition should be tailored to age-related health conditions. Many senior dogs develop conditions such as kidney disease, heart disease, arthritis, or diabetes. These dogs may need specialised diets rather than a standard senior formula.
If you’re not sure how best to feed your aging dog, book a consultation with your local vet. They’ll be able to perform a thorough check up and create specialised care and feeding plans for your dog’s needs.