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Intern Med J. 2016 Sep 19. doi: 10.1111/imj.13257. [Epub ahead of print]

The obesity paradox: an endocrine perspective.

Author information

1
Monash Health, Department of Clinical Nutrition and Metabolism, Victoria, Australia.
2
Monash Centre for Health Research and Implementation, Monash School of Public Health and Preventative Medicine, Victoria, Australia.
3
Diabetes and Vascular Unit, Monash Health, Victoria, Australia.
4
Monash Centre for Health Research and Implementation, Monash School of Public Health and Preventative Medicine, Victoria, Australia. helena.teede@monash.edu.
5
Diabetes and Vascular Unit, Monash Health, Victoria, Australia. helena.teede@monash.edu.

Abstract

Obesity is a growing epidemic both in Australia and worldwide. Being overweight or obese is known to be adversely associated with multiple cardiovascular risk factors such as type 2 diabetes mellitus, lipid disorders and hypertension. Despite the adverse impact of overweight and obesity, recent observational studies have suggested that in some overweight and obese individuals with established chronic disease, there is a survival advantage which is paradoxically better than individuals of normal weight. A burgeoning area of interest is the existence of this paradox in chronic endocrine disorders, especially with respect to osteoporosis, type 2 diabetes mellitus, as well at the latter's chronic complications: chronic kidney disease and coronary artery disease. In this article, we review the postulated mechanisms and latest evidence concerning the obesity paradox with a focus on endocrine-related diseases. We discuss confounders and biases which exist in observational studies from which the paradox has been described and highlight that despite the observed paradox, substantial literature exists supporting the benefits of weight reduction in obesity.

PMID:
27643504
DOI:
10.1111/imj.13257
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