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Subject:
From:
Peter L Borst <[log in to unmask]>
Reply To:
Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Sat, 20 Sep 2008 13:27:59 -0400
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On Fri, 19 Sep 2008 22:16:49 -0700, Dee Lusby <[log in to unmask]>
wrote:

> since probably deficient in chromium go get some and add to diet 

WARNING, BAD ADVICE!

Quoted material:

In the last decade Cr has become amazingly popular as a
nutritional supplement, weight-loss agent and muscle 
development agent. Among mineral supplements products
containing Cr are second in sales only to Ca-containing
products (Nielsen, 1996). However, this popularity is not
reflected in the level of understanding of how Cr functions
in the body or even of whether the element is essential.

The daily requirement for human subjects is small, 
i.e. approximately 30 micrograms, 
such that it is difficult for healthy individuals to develop Cr
deficiency. Thus, the use of Cr supplements is probably
unnecessary for the general public. However, the use
of certain Cr supplements, such as Cr(pic)3, is probably
harmful. While nutritional supplement levels of Cr do not
appear to have beneficial effects, pharmacological quantities
of Cr may increase insulin sensitivity in both healthy
subjects and subjects with type 2 diabetes. 

In March 2003 the Expert Group on Vitamins and
Minerals of the UK Joint Food Standards and Safety Group
requested that the health supplement industry should
voluntarily withdraw Cr(pic)3-containing products, while
also consulting on a ban on the use and sale of Cr(pic)3 in
the UK.

Recent advances in the nutritional biochemistry of trivalent chromium
John B. Vincent
The University of Alabama
Tuscaloosa, AL 

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