Cat eating measured portion of dry food from an automatic feeder

The Surprising Truth About Obesity in Pets — And How to Take Action

Obesity in pets has become one of the fastest-growing health concerns for cats and dogs worldwide. It often begins with love: an extra treat here, a table scrap there, but over time, those small indulgences can shorten your pet’s lifespan and limit their quality of life. Extra weight puts pressure on joints, increases the risk of disease, and makes simple activities like walking or playing more difficult. October is Pet Obesity Awareness Month, and it’s the perfect time to start the conversation about healthier habits and making informed choices for the pets we love.

Overweight dog resting on grass

The hidden risks of obesity in pets

Carrying a little extra weight may not seem serious at first, but it can quickly affect the health and happiness of your pets. Veterinarians define obesity as when a cat or dog weighs around 20% more than their ideal body weight. The danger is that many pet parents don’t recognise the signs until health problems begin. Obesity in pets has been linked to diabetes, arthritis, heart and respiratory disease, and even shorter lifespans. Excess weight also places extra strain on joints, making it painful for pets to walk, climb stairs, or enjoy playtime – often leading to a cycle of reduced activity and further weight gain.

The good news is that prevention is simple. Pet owners can protect their companions from long-term health challenges by learning the risks and making mindful choices early.

Dog being examined by a veterinarian during a routine health check

How to tell if your pet is overweight

There are simple ways to check if your pet is carrying extra weight. Start with a simple rib check: you should be able to feel your pet’s ribs with only a thin layer of fat covering them. From above, your pet’s waist should dip in behind the ribs, and from the side, there should be a clear abdominal tuck rather than a sagging belly. Cats should also have a visible waistline and no swinging pouch of fat under the stomach. Veterinarians often use a body condition scoring system to manage obesity in pets, typically grading them on a scale of 1–9 from underweight to obese. A vet check-up can provide clarity and help set a healthy target weight if you’re unsure about your pet’s condition.

Overweight cat with measuring tape around body eating dry food

The link between pet food and obesity

One of the biggest contributors to obesity in pets is food that adds calories without real nutrition. When choosing dry food, the label is your guide. High-quality protein should be listed near the top, as this supports muscle maintenance. Controlled fat levels provide steady energy without excess weight gain, while Omega-6 fatty acids help keep skin and coats healthy. Puppies and kittens need DHA for brain development, and cats require taurine for healthy eyes and heart function. 

Lower-quality foods often rely heavily on vague “fillers” or by-products that tip the scales toward weight gain while offering little benefit. Complete is different: every recipe is scientifically tested and carefully balanced, so pet parents can trust that what’s in the bowl supports long-term health instead of contributing to hidden risks.

Cat using an enrichment feeding puzzle to slow down eating

Smart feeding habits for cats and dogs

Even the best pet food can cause problems if portions aren’t managed carefully. Feeding guides on the bag are based on a pet’s ideal weight, not their current one, and sticking to those amounts is an easy way to keep calories in check. Measure meals out instead of free-feeding to prevent overeating, and stick to consistent feeding times to support better digestion. Treats should make up no more than 10% of a pet’s daily diet to prevent obesity. Use kibble as rewards when training and swap table scraps for healthier alternatives like carrot pieces to keep things balanced. Enrichment tools such as slow-feeder bowls or snuffle mats encourage pets to eat more slowly, reducing the risk of overeating and supporting healthy weight management, while adding stimulation to mealtimes.

Dog playing tug-of-war outdoors

Healthy habits beyond the bowl

Daily activity is just as important as nutrition when it comes to maintaining a healthy weight. Certain risk factors, such as age, breed, or sterilisation, can make some pets more likely to gain weight, and consistent exercise helps balance out these risks by burning calories, building muscle, and keeping joints moving comfortably. Dogs benefit from regular walks, playtime, or even swimming, while cats need opportunities for climbing, chasing, and interactive games. Regularly checking pets’ body condition and keeping up with vet visits ensures that any changes are noticed early. While Complete provides a balanced nutritional foundation, preventing obesity in pets also depends on these healthy daily habits that keep pets active, engaged, and thriving.

Preventing obesity in pets starts with small, consistent choices: the right food, measured portions, and active lifestyles. Together, these habits build the foundation for a healthier, happier, and longer life. Complete helps make that foundation stronger with scientifically balanced nutrition you can trust in every bowl. Find our products at pet shops across South Africa or browse the full range online.

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