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Malnutrition in Obesity

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Geriatric Gastroenterology
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Abstract

Obesity and malnutrition appear to be at the opposite ends of the spectrum. On the contrary, the two clinical problems often coexist. According to the World Health Organization (WHO), malnutrition refers to deficiencies, excesses, or imbalances in a person’s intake of energy and nutrients. The clinical entity of malnutrition has many subdivisions and includes at the one end undernutrition (wasting, stunting, underweight) and at the other end overweight and obesity. Obesity obscures the subtle signs of nutritional deficiencies. The obesogenic diet is most often deficient in nutrients but dense in calories.

Multiple factors in older age intensify nutritional deficiencies. Poor eating habits because of a decline in taste, smell, and appetite, difficulty chewing, swallowing, dementia, depression, medications, restricted diets, limited income, and reduced social contact intensify the underlying nutritional deficiencies. The overall effects of obesity and malnutrition with poor eating lead to a weak immune system, sarcopenia, and decreased bone mass, increasing the risks for anemia, neurological problems, decreased immunity, and an increase in falls and fractures. A combination of physical, social, and psychological issues causes malnutrition in the obese setting.

Bariatric surgical procedures can be safely performed with substantial benefits in a small and selected group of older adults. They can be useful in inducing short-term and long-term weight loss without any added age-related risk. However, the well-intended goal of weight loss is never without adverse effects. All weight-reducing measures and bariatric surgical procedures more than diet therapies cause macro- and micronutrient deficiencies. There is an exacerbation of the preexisting nutrient deficiencies or onset of new deficiencies of macro- and micronutrients. A team approach is essential to accomplish the therapeutic goal. The team should include one or more qualified nutritionists and geriatricians in addition to the experienced surgical group. A preoperative geriatric and nutritional assessment and correction of deficiencies prepares the patient for bariatric surgery. Postoperative care by qualified nutritionists is mandatory to avoid overt and occult malnutrition.

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Pitchumoni, C.S. (2020). Malnutrition in Obesity. In: Pitchumoni, C.S., Dharmarajan, T. (eds) Geriatric Gastroenterology. Springer, Cham. https://doi.org/10.1007/978-3-319-90761-1_110-1

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  • DOI: https://doi.org/10.1007/978-3-319-90761-1_110-1

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-90761-1

  • Online ISBN: 978-3-319-90761-1

  • eBook Packages: Springer Reference MedicineReference Module Medicine

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