Report 1 shows the importance of choline and that the low
fat diets eliminat it.
"Choline is a water-soluble essential
nutrient. It is usually grouped within the
B-complex vitamins. Choline generally refers to the various
quaternary ammonium salts containing the N,N,N-trimethylethanolammonium
cation. (X- on the right denotes an undefined counteranion).
The cation appears in the head groups
of phosphatidylcholine and sphingomyelin, two classes of
phospholipid that are abundant in cell membranes. Choline
is the precursor molecule for the neurotransmitter acetylcholine
which is involved in many functions including memory and
muscle control. Choline must be consumed through the diet
in order for the body to remain healthy. It is used in
the synthesis of the constructional components in the body's
cell membranes. Despite the perceived benefits of choline,
dietary recommendations have discouraged people from eating
certain high choline foods, such as egg and fatty meats.
The 2005 National Health and Nutrition Examination Survey
stated that only 2% of postmenopausal women consume the
recommended intake for choline.." http://en.wikipedia.org/wiki/Choline