1 GENERAL ASPECTS OF OBESITY Definition Epidemiology Factors involved in obesity Veterinary team Patient: breed and sex The owner: energy balance and type of diet Diseases associated with obesity Increased anaesthetic and surgical risk in obese patients 2 ADIPOSE TISSUE Formation, types, dynamics, and functions Composition and origin Adipose tissue function Endocrine regulation of energy balance Neuroendocrine regulation of food consumption What is the key to obesity? Obesity and feline diabetes 3 IDENTIFICATION AND EVALUATION OF OBESE PATIENTS Weight denominations and errors in calculating weight Body composition, evaluation, and weight Diagnostic methods in research Chemical cadaver analysis In vitro studies In vivo studies Diagnostic methods in clinical practice Lumbar ultrasound Morphometric measurements: biometrics Body condition score (BCS) Biochemical markers 4 COMMUNICATION WITH OWNERS Introduction Interaction with the owner Models Types of pet owners 5 NUTRIENTS IN WEIGHT-LOSS PROGRAMMES Energy Fat and fat-soluble nutrients Polyunsaturated fatty acids Vitamin E and selenium Fibre Protein Carbohydrates Dietary supplements 6 DIETARY MANAGEMENT IN WEIGHTLOSS PROGRAMMES Protocol Introduction How are the patient’s requirements determined? Target weight and RER By subtracting daily mass loss from current weight Dietary restriction based on an optimal (target) weight considering maintenance requirements What is the patient’s daily ration? Calculation based on product label information Calculation based on the energy content of the food How is the recommended daily ration administered to the patient? Monitoring progress 7 TREATMENT OF OBESITY Workplan Initial approach Duration and cost of treatment Food selection Agreed rewards Exercise and lifestyle Pharmacological treatment of obesity Drugs with peripheral mode of action Central-acting drugs Surgical treatment of obese patients Bariatric surgery Liposuction 8 PREVENTION OF OBESITY The rebound or yo-yo effect The yo-yo effect: underlying pathophysiology and factors involved Preventive strategies Monitoring during different stages Monitoring during growth Monitoring in adult patients Neutered animals REFERENCES