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SHOWA
WOMEN'S UNIVERSITY
THE PROBLEM
ON THE LACK OF INGESTION OF CALCIUM AND MAGNESIUM IN JAPAN AND CORAL POWDER
The oldest data of RDA (Recommended Dietary Allowances) for the Japanese was the official data issued by the Japanese Government in 1947, except the temporally issued data during the World War II. After
that, the data is still used through several revision. In the meanwhile, the
ingested nutrition of the people is rising by the For this reason, in order to increase the ingestion of Ca, the development of Ca enriched food and the propaganda to increase the consumption of the food which are the supply source of Ca such as Milk and dairy products etc. are made and as the result the ingestion of Calcium is slightly upward tendency. But recently after the report that the death rate of Ischemic Heart Disease (IHD) is increased to correlated with the ratio between Ca and Magnesium (Mg) are published by Karppanen et al. (1978)[1]. The
necessity of concerning not only to the ingestion of each minerals but also to
make balance of correlated minerals are emphasized by Itokawa [2], Kimura[3]
and Suzuki [4] et al; We have no data of ingestion of Mg in the National
Nutrition Surveys of Japan which was done once a year from 1946 but following
to the data by Itokawa et al., the ingestion of Mg which was surveyed from
each stratum in Japan was about 150-250mg and this ingested Mg was only about
1/3- 1/2 compared with 500-600mg of ingestion of Ca. Concerning to the ratio
of Ca/Mg, in Japan to keep 2:1 is preferable from the data of Karppanen et al.
and RDA for the Japanese of Ca and Mg. Actually, it seems easy but is
difficult to keep 2:1 for Ca/Mg by assortment of several food. Fortunately, it
is realized to supply the Ca/Mg =2:1 by the utilization of coral which is
accumulated in certain area of Okinawa in Japan. This Ca/Mg =2:1 is naturally
well-balanced and contains other minute minerals. Ca/Mg
, is this naturally well-balanced minerals comes from Okinawa. By the result
of analysis, ordinary coral contains abt. 35% of Ca: and abt.2% of Mg but this
special type of coral contains abt. 25% of Ca and abt.10% of. Mg which
contents of Mg is higher 'than that of ordinary coral and the ratio of Ca/Mg
is closely 2:1. We certified by the data of analysis of both authorized
Research Laboratories in Japan and U.S.A.. And usually, ordinary coral sand
accumulated on the bottom of the sea sometimes can not use for food-stuff as
it contains silica sand but this special coral has not such trouble by the
result of analysis.
Hiroyasu Fukuba, Ph.D . Professor . Showa Women's University
SHOWA
WOMEN'S UNIVERSITY 1-7,
Taishido, Setagaya-Ku, Tokyo 154 Japan Phone (03)3411-5111 Fax.
(03)3487-6850 Tlx. 2425578 SHOWAW The
influence of Ca enriched food and exercise upon the bone density objected 51
students from 19-32 years of age during 6 months are observed. ' The
ingestion of Ca was 1,000mg which was consisted from 400mg by daily foods,
200mg by mill( and 400mg by coral powder. As for exercise, 90 minutes
exercise for the purpose of weight control was charged for 1st Group, more
than 40 minutes/Day and nearly 140 pulsation exercise was charged 3 times in
a week for 2nd Group, 10,000 steps/Day of walking was charged for 3rd Group
and exercise was charged for the purpose of weight control as 1st Group but
digestion of Ca was not forced to charge for 4th Group. The change of the
bone density of 3rd Group was the biggest from 95.4 at the beginning of the
test to 96.3 at the end of the test. [6] 2. The Influence of Calcium Enriched Food and Exercise upon the Bone Density -II By
Prof. Shizue Yamashita et al. (announced and published at Japan Nutrition
and Food Society, 1998) The
change of bone density by exercise in the case of charging of 600mgIDay of
Ca and 300mgIDay of Mg derived from coral powder for one Group and charging
of 200ml of mill{ for other Group were objected by 43 of female students
from 19-27 years of age. The
object term was 10 months from May 1997 to March 1998 and exercise was
divided 2 terms, 1st term was 66 days from May to July and 2nd term was 60
days from October to December. 1st Group was only given Ca enriched food,
2nd and 3rd Group were given enriched food and exercised muscular training
and walking. 4th Group was only exercise but divided 2 groups and each group
altered muscular training and walking in the middle of objection. The rising
of bone density of testing groups was predominantly high, especially that of
started from muscular training, Group in the exercise groups (2K Group) was
more than that of started from walking Group (2W Group). [7] 3.
The Utilization of
Calcium derived from Natural Coral Calcium In
order to compare the utility efficiency of Ca derived from natural coral
powder which contains Ca/Mg at the rate of 2:1, 4 kinds of Ca, Coral Powder,
Calcium Carbonate, Milk Calcium and Cow Bone Calcium, are given to 4 month
old 30 Wister species rats during 4 weeks. In this case, to keep the amount
of Mg controlled with Magnesium Oxide and controlled the ratio of Ca/mg as
2:1. 3 days before the end of feeding, the intake and out put are
investigated by the ways of collecting dung and urine. After the feeding,
the amount of Ca and Mg were measured from the extracted internal organs and
blood serum separately. As the result, the reserved amount of Ca of Coral
Powder Group was shown the highest value compared with other Groups. And the
rate of the absorption of Ca of this group' in appearance was 69.6%. It was
also the highest value compared with other groups. There was no difference
between 4 groups about the thickness of Ca and Mg in blood serum, but HDL-the
thickness of Cholesterol of Coral Powder was the highest value among 4
groups. As the result, the absorption of Ca of natural Coral Calcium was the
better compared with Milk Ca, Cow Bone Ca and Calcium Carbonate. And Natural
Coral Calcium seemed to give the favorable result for fat in the blood
serum. [8] 4.
Calcium Absorption from the ingestion of Coral Derived Calcium by Humans By
Dr. Kunihiko Ishitani et al. (1999 Journal of Nutritional Science Vitamin L
45.509~517) It
is pointed out the defect that the mineral balance in the foods last easily
as the chance of ingestion of processed foods were so often recently. Cookies
enriched with well-mineral balanced coral powder and with Calcium Carbonate
were given to 12 healthy volunteers (male: 6, female :6) as the cross over
design and compared the rate of absorption by the analysis of fecal and
urine. As the result of analysis, it was clearly shown, even the numbers of
subjects were small, that Ca of Coral Powder was absorbed better than that
of Calcium Carbonate. [9] As
the conclusion of above introduced 4 reports, Ca and Mg contained Coral
Powder was well absorbed in the human body and it was clear that it
contributes for the improvement of bone density. /
:y~,-.C/~ Hiroyasu
~Fukuba, Ph.D. Professor Showa Women's University
LITERATURE
[
1 ] J Karppanen et al. 1978 ...Mutual Relationship of Ischemic
According to
the bar graph shown on the left, only the adults
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