What I find surprising is the
specific biological differences between white and blacks over vitamin D
deficiencies. It is not just a
difference in the natural uptake. Explaining
the difference from an adaption standpoint will take effort.
What once seemed simple, once
again becomes complicated.
The big story from a public
health perspective is that all diets need to be supplemented with at least two
grams of vitamin D, and perhaps 10 to 20 grams of vitamin C. At the same time, sugar needs to be largely
withdrawn from all processed food products and replaced with stevia.
All are indicated as sufficient
to allow a person to reach old age while maintaining prime health.
Vitamin D Deficiency is Associated with Different Types of Obesity in
Black and White Children
Released: 4/26/2011 4:05 PM EDT
Embargo expired: 4/27/2011 7:00 AM EDT
Newswise — Chevy Chase, MD— A recent study accepted for publication in
The Endocrine Society’s Journal of Clinical Endocrinology & Metabolism
(JCEM) found that while black and white children with vitamin D deficiency
both had higher fat levels, black children were more likely to have higher
levels of fat just under their skin and white children were more likely to have
higher levels of fat between their internal organs.
Studies in adults and children have shown a link between obesity and
vitamin D deficiency. However, data characterizing the racial differences in
the relationship between obesity and vitamin D, particularly in fat tissue
distribution are limited. This study examined the racial differences in the
relationship between vitamin D status, BMI, fat levels, fat distribution and
lipid levels in healthy obese and non-obese 8-18 year old black and white
children.
“Vitamin D deficiency is rampant in American youth, and there is some
suggestion in adults that low levels of vitamin D may be playing a role in the
increasing rates of type 2 diabetes. It is possible the same may be true for
youth with type 2 diabetes,” said Silva Arslanian, MD, of the University of Pittsburgh
In this study, researchers measured vitamin D levels in 237 children
and found the majority of the study participants were vitamin D deficient.
Plasma vitamin D levels were associated inversely with BMI and fat levels and
positively with HDL cholesterol in all subjects. Visceral adipose tissue (fat
between internal organs) was higher in vitamin D deficient whites and
subcutaneous adipose tissue (fat below the skin) was higher in vitamin D
deficient blacks compared with their respective vitamin D non-deficient
counterparts.
“Besides therapeutic interventions to correct the high rates of vitamin
D deficiency in youth, benefits of vitamin D optimization on fat levels, lipid
profile and risk of type 2 diabetes need to be explored,” said Arslanian.
Other researchers working on the study include: Kumaravel Rajakumar,
Javier de las Heras and SoJung Lee of the University of Pittsburgh in Penn.;
and Tai Chen and Michael Holick of Boston University in Mass.
The article, “Vitamin D status, adiposity and lipids in Black American
and Caucasian children,” appears in the May 2011 issue of JCEM.
Founded in 1916, The Endocrine Society is the world’s oldest, largest
and most active organization devoted to research on hormones and the clinical
practice of endocrinology.
Today, The Endocrine Society’s membership consists of over 14,000
scientists, physicians, educators, nurses and students in more than 100
countries. Society members represent all basic, applied and clinical interests
in endocrinology. The Endocrine Society is based in Chevy Chase , Maryland
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