Excessive fat deposition in obesity has a multifactorial aetiology, but is widely considered the result of disequilibrium between energy intake and expenditure. Despite specific public health policies and individual treatment efforts to combat the obesity epidemic, >2 billion people worldwide are overweight or obese. The central nervous system circuitry, fuel turnover and metabolism as well as adipose tissue homeostasis are important to comprehend excessive weight gain and associated comorbidities. Obesity has a profound impact on quality of life, even in seemingly healthy individuals. Diet, physical activity or exercise and lifestyle changes are the cornerstones of obesity treatment, but medical treatment and bariatric surgery are becoming important. Family history, food environment, cultural preferences, adverse reactions to food, perinatal nutrition, previous or current diseases and physical activity patterns are relevant aspects for the health care professional to consider when treating the individual with obesity. Clinicians and other health care professionals are often ill-equipped to address the important environmental and socioeconomic drivers of the current obesity epidemic. Finally, understanding the epigenetic and genetic factors as well as metabolic pathways that take advantage of ‘omics’ technologies could play a very relevant part in combating obesity within a precision approach.
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The authors thank the Spanish Government Carlos III Health Institute Centre of Biomedical Research Network (CIBERobn Physiopathology of Obesity and Nutrition) for support and funding.
The authors declare no competing interests.
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González-Muniesa, P., Mártinez-González, M., Hu, F. et al. Obesity. Nat Rev Dis Primers 3, 17034 (2017). https://doi.org/10.1038/nrdp.2017.34
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