Being overweight is known to reduce lifespan of dogs. A recent study followed a group of Labradors from middle age onwards and showed that being at the optimal weight increased lifespan even if the weight loss programme was started at 8-10 years of age.
So it’s never too late to start a weight loss programme for your pet.
To learn more see:
Penell JC et al. Body weight at 10 years of age and change in body composition between 8-10 years of age were related to survival in a longitudinal study of 39 Labrador retrievers. Vet Scand. 2019. Sep 9; 61(1):42