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Got Vitamin D?

Author: Oksana Aron, MD Source: Weight Loss NYC Sep 7, 2009
vitamin DVitamin D has always been an important part of our daily diet, and now it's been linked to successful weight loss.

Vitamin D deficiency has commonly been associated with obesity, but the question remains whether it causes obesity, or if obesity causes the deficiency.

In a new study presented at The Endocrine Society's 91st Annual Meeting in Washington, D.C., researchers shared their findings based on an 11-week study that measured circulating blood levels of vitamin D in 38 overweight men and women before and after they followed a diet plan of 750 calories a day fewer than their estimated total needs. The goal was to find out whether baseline vitamin D levels before going on a calorie-restricted diet would affect weight loss.

The findings included the following:
  • Subjects had insufficient vitamin D levels on average.
  • Higher baseline vitamin D levels predicted greater loss of abdominal fat.
...baseline, or pre-diet, vitamin D levels predicted weight loss in a linear relationship. For every increase of 1 ng/mL in level of 25-hydroxycholecalciferol—the precursor form of vitamin D and a commonly used indicator of vitamin D status—subjects ended up losing almost a half pound (0.196 kg) more on their calorie-restricted diet. For each 1-ng/mL increase in the active or "hormonal" form of vitamin D (1,25-dihydroxycholecalciferol), subjects lost nearly one-quarter pound (0.107 kg) more.

Although further research on vitamin D's active role in weight loss is needed, it is still recommended as a necessary part of a healthy diet. —ScienceDaily

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