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With inadequate levels of vitamin D existing in a staggering 75 percent of adults and teenagers in the United States, researchers continue to explore the potential harmful effects of this national vitamin deficiency.
According to Harvard School of Public Health – which estimates the number of vitamin D- deficient people worldwide as over 1 billion – lack of vitamin D may play a role in many serious diseases, including cancer, heart disease, diabetes and obesity.
Now, new research seems to show that vitamin D deficiency can worsen the physical functioning of severely obese people by further impairing their mobility.
The danger of vitamin D deficiency
In a study of 252 severely obese people published in the April 2014 issue of Journal of Clinical Endocrinology and Metabolism, researchers found that vitamin D-deficient participants walked slower and were more sedentary than those with normal levels, raising their risk of poor physical functioning and shortened lifespans. Conversely, the subjects with the highest levels of vitamin D walked the fastest, and reported getting the most exercise.