Simple Summary Obesity is a global problem, not only in humans but also in companion
animals, including horses. It is well known that obesity in horses is associated with an
increased risk of laminitis, other orthopedic problems, reproductive disorders, and
decreased exercise capacity. In humans, however, obesity is known to be of great
importance in increasing the risk of cardiovascular disease and thereby increasing the death
rate. The aim of the study was to demonstrate the microscopic changes in heart and vessels …