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Overfed But Undernourished

Posted On : October 01, 2019

Obesity is related to as many as 400,000 deaths each year in the US and it has increasingly been recognized as a risk factor for several nutrient deficiencies. This may seem surprising given the likelihood of over consumption of calories, however these additional calories are not from nutritious sources. One of the main reason for these nutritional deficits is the greater availability of inexpensive foods that are rich in calories and are nutrient deficient. This has led some medical professional to conclude that there is a certain group of people who are overfed but undernourished.  Even with the epidemic of the obesity, there is significant nutritional deficiencies noted.

Obese subjects have increased blood volume, cardiac output, adiposity, lean mass and organ size all of which can influence volume of distribution, in addition, treatment for severe obesity involving surgical procedures can worsen these nutrient deficiencies and in some cases may cause new ones to develop.

This table shows the percentage of population below the estimated average requirement (EAR) by body weight status in adults more tan 19 years old, showing that almost 90 to 100 percent of people including normal weight (NW) are below the EAR of vitamin D and Vitamin E.

Nutrition TableNutritional deficiencies in obese patients may promote the development of chronic diseases including increased insulin resistance, pancreatic B-cell disfunction and diabetes, this is because specific micronutrients are involved in glucose metabolic pathways; There are other chronic diseases related to obesity that are being investigated such as decrease in focal grey matter volume and cognitive impairment or inadequate sleep due to low intake of antioxidant vitamins.

We would like to thank Miguel Rosado, MD for his significant contribution provided for this Blog.

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