Senior Dog Health Guide: What to Expect and How to Support Them After Age 7

There's something really special about a senior dog. They know your routines, they've grown into their personality, and for many pet parents, the bond only deepens with time. As your dog moves into their senior years — typically around age 7, though this varies by size and breed — their needs shift in some meaningful ways. The good news is that with a little extra attention and the right support, many dogs thrive well into their golden years.

When Is a Dog Considered Senior?

Age 7 is a general benchmark, but breed size plays a big role:

Every dog is an individual, of course. Some dogs show signs of aging earlier, others seem to stay puppyish for years. Your Petco veterinarian is the best person to help you gauge where your specific dog is and what to focus on.

What do the Changes You May Notice Mean for your Senior Dog?

Aging brings gradual changes that are completely normal. Recognizing them simply helps you respond thoughtfully:

• Moving a little more slowly: Senior dogs often take longer to get up from lying down, are less eager to jump, or prefer shorter walks. This is usually a natural shift in energy and joint comfort — not necessarily a sign that something is wrong. Joint support supplements or a cozy orthopedic bed can make a real difference.
• A graying muzzle and coat changes: The face typically goes gray first, and the coat may become a bit softer or thinner over time. This is a normal and endearing part of aging.
• Sleeping more: Senior dogs generally sleep more than younger dogs. As long as they're still engaged and interested in food, play, and time with you, increased rest is simply part of the rhythm.
• Weight changes: Some dogs gain a little weight as their activity level drops; others may gradually lose muscle mass, particularly around the hindquarters. Both are worth mentioning at your next vet visit so nutrition and exercise can be adjusted accordingly.
• Dental changes: Older dogs are more prone to tartar buildup and gum sensitivity. Regular dental care — at home and with annual professional cleanings performed by your veterinarian — becomes especially valuable at this stage.
• Occasional confusion or changed sleep patterns: Some senior dogs develop a condition called canine cognitive dysfunction, which is somewhat similar to dementia in humans. Signs can include seeming disoriented, waking at night, or changes in social behavior. It's manageable with the right support — your vet can walk you through options if you notice these changes.

What Changes in Vet Care as my Dog Ages?

The most meaningful shift in senior dog care is adhering to twice-yearly wellness visits. Because dogs age faster than humans, a lot can change in six months — and catching anything early tends to make it much easier to address.

A senior wellness visit with your Petco veterinarian may include:

• A full physical exam, including joints, teeth, eyes, ears, and lymph nodes
• Blood and urine panels to check kidney and liver function, thyroid levels, and blood cell counts
• Blood pressure check
• A weight and body condition assessment
• A conversation about any behavior or mobility changes you've noticed at home

Twice-yearly exams are the single most impactful thing you can do for a senior dog. Many conditions — including kidney changes, thyroid shifts, and early arthritis — are much more manageable when caught in routine screening rather than later.

What is the Best Nutrition for Senior Dogs?

Nutritional needs shift with age. Senior-specific dog foods are formulated to reflect this — typically with adjusted calorie levels, higher-quality proteins to support lean muscle, and added joint-supporting nutrients like glucosamine and omega-3 fatty acids.

• Look for an AAFCO statement specifying the food is formulated for 'senior' or 'all life stages'
• If your dog is gaining weight, your vet may recommend a lower-calorie senior formula
• If your dog is losing muscle mass, a diet higher in easily digestible protein can help
• For dogs with a diagnosed condition like kidney disease or diabetes, your Petco veterinarian may recommend a prescription diet formulated specifically for that need

Always transition to a new food gradually — over 7–10 days — to keep things comfortable for your dog's digestion.

Top senior dog food choices include: Hill's, Royal Canin, Purina

Top senior dog supplements include: NUTRAMAX Dasuqin, Cosequin

How Can I Best Keep My Senior Dog Active and Comfortable?

Exercise remains important for senior dogs — it supports joint health, healthy weight, and mental wellbeing. The goal is simply to adjust the type and duration to match where your dog is:

• Shorter, more frequent walks are often better than one long one — they're gentler on joints and easier to pace
• Swimming is one of the kindest forms of exercise for senior dogs with joint stiffness — it builds strength without impact
• Mental enrichment matters just as much as physical — puzzle feeders, gentle training games, and scent activities keep senior dogs engaged and happy
• Orthopedic or memory foam beds make a meaningful quality-of-life difference for dogs with any joint sensitivity

What are Medications and Supplements Worth Discussing With My Vet?

Depending on your dog's health, your Vetco vet may talk with you about:

• Joint supplements (glucosamine, chondroitin, omega-3s) to support mobility and comfort
• Prescription pain management (such as Galliprant, Adequan, Carprofen or Librela) if arthritis is diagnosed — these can be very well-tolerated in senior dogs, however you’ll want to discuss potential side effects in detail with your veterinarian. These medications will sometimes require bloodwork before prescribing to make sure your senior pets body systems are able to process the medication.
• Thyroid medication if a thyroid panel comes back abnormal — a very common and very manageable senior condition
• Dental cleanings under anesthesia, which are safe for most healthy seniors and make a significant difference in overall wellbeing

There's no one-size-fits-all approach. Your vet will tailor recommendations to your dog's specific health picture — which is exactly why those twice-yearly visits are so valuable.

How Can I Schedule a Senior Wellness Visit at Vetco Total Care?

If your dog is approaching or has passed their 7th birthday, a senior wellness check with your veterinarian is a great starting point. Your nearest Vetco Total Care Hospital veterinarian can help you build a care plan that's right for your dog's size, health history, and lifestyle — so you can enjoy many more good years together. Check out our locations and booking schedules here.