Choosing the right food for an overweight dog
Although it might seem like a good idea to simply give your dog less food to help it lose weight, this isn't recommended; it reduces the likelihood of them getting all the nutrients they need, and can encourage poor behavior such as aggression or begging.
Instead, select a food which is specially designed to be useful for weight-loss programs. It should include highly digestible proteins so they're getting the energy they need, but with reduced calorie content. Some of the most advanced dog foods for weight loss also include specific formula features, such as a blend of fibers that help your dog feel fuller without adding unnecessary calories.
Low-carbohydrate foods can be useful for overweight dogs who are suffering with diabetes, as they can slow digestion and improve glycemic control. In the case of an overweight dog suffering with diabetes, specific veterinary diets with low carbohydrate content may be recommended. These can help to improve the condition of a dog under veterinary supervision.
Exercising your dog for weight loss
If your dog's health allows it, take them out for regular exercise. Spread this over the week with shorter sessions, rather than one long and demanding walk or run at the weekend, to get them used to it. Swimming in particular can be a positive and effective exercise if your dog is struggling with long walks.
By making some small changes, you can help your dog achieve its ideal weight and get back into a healthy lifestyle. Start by consulting your vet and getting their advice on food, exercise, and more.