What is the most common cause of obesity in pets?

Overfeeding is indeed the most common cause of obesity in pets. This condition arises when pets consume more calories than their bodies require for maintenance and activity. Factors such as portion sizes, frequency of feeding, and the calorie density of the food can significantly impact a pet's weight. Many pet owners may inadvertently provide too many treats or fail to consider the caloric content of their pet’s diet, leading to an energy surplus and, ultimately, obesity.

While genetics can play a role in a pet’s predisposition to gain weight, environmental factors like diet and lifestyle are often more critical in managing obesity. Lack of exercise also contributes to weight gain but is generally a secondary factor, as the primary issue is usually related to caloric intake rather than expenditure. Medical conditions can lead to obesity, but they are not the most common cause. In many cases, addressing overfeeding and ensuring a balanced diet can significantly reduce the risk of obesity in pets.