Nippon Eiyo Shokuryo Gakkaishi

Effect of a Magnesium-deficient Diet on Nitrogen Balance in Rats

Tomoko Nemoto, Hiroshi Matsuzaki, Ritsuko Masuyama, Mariko Uehara, Kaz ...

2004 Volume 57 Issue 4 Pages 167-172
Published: August 10, 2004
Released on J-STAGE: December 10, 2009

DOIhttps://doi.org/10.4327/jsnfs.57.167

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Changes in nitrogen (N) balance were investigated in 4-week-old male Wistar rats fed a magnesium (Mg)-deficient diet, in comparison with rats fed a normal control diet. After 42 days of feeding, final body weight, weight gain and food efficiency were significantly decreased in rats fed the Mg-deficient diet. Rats fed the Mg-deficient diet also showed significant decreases in serum Mg concentration, apparent absorption of Mg and Mg retention from 14 days until the end of the feeding period. There was no significant difference in apparent absorption of N between the two groups. At 14 and 42 days of the Mg-deficient diet, urinary N excretion was significantly increased, N retention was significantly decreased, and serum total protein concentration was also significantly decreased. These results suggest that a Mg-deficient diet depresses protein utilization.

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Changes in Nutrition Ingestion of Mongolian Nomads before and after the Severe Winters of 2000 and 2001

Satomi Ishii, Kunihiko Samejima

2004 Volume 57 Issue 4 Pages 173-178
Published: August 10, 2004
Released on J-STAGE: December 10, 2009

DOIhttps://doi.org/10.4327/jsnfs.57.173

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The traditional diet of Mongolian nomads consists of dairy products and meat, and they have been able to satisfy their nutritional needs without consumption of vegetables. In the winters of 2000 and 2001, large numbers of Mongolian livestock died from extreme cold. As a result, there were notable changes in the diet of the Mongolian nomads compared with that before the two successive harsh winters. Although there was no marked difference in mean total energy ingestion by males between 1997 (2, 191±589kcal) and 2002 (2, 108±618kcal), the quantity and frequency of dairy and meat products ingested decreased and those of flour products ingested increased. The amount of flour consumption increased 3-fold from that in 1997. Adult males are dependent on kumiss, which accounts for 50% of their total energy intake and all of their vitamin C requirement. However, kumiss was not available in 2002. As a result of the decreased ingestion of dairy products, various active ingredients contained in such foods could not be taken in, and this may have had a negative impact on the health of Mongolian nomads, whose eating habits now stand at a crossroads under the influence of modernization.

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Health Promotion Activities in a Rural Village in Fukushima Prefecture

Practical Planning to Improve Nutrition and Dietary Habits and Evaluation of Actual Implementation

Michiko Sakai

2004 Volume 57 Issue 4 Pages 179-182
Published: August 10, 2004
Released on J-STAGE: December 10, 2009

DOIhttps://doi.org/10.4327/jsnfs.57.179

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We report a plan to improve nutrition and dietary habits, and its implementation during a 7-year period from 1993 to 2000, in a village located in the Aizu area of Fukushima Prefecture. The plan was devised on the basis of information obtained in health and dietary surveys conducted in 1992 and 1993, and nutritional improvement was emphasized under the leadership of a registered dietitian belonging to the local municipal office. The most critical health problems were the high incidences of cerebrovascular disease and gastric cancer, and the nutritional problems focused on were high salt intake, low animal protein intake, and a poorly balanced intake of various nutrients. To improve the villagers' diet from the viewpoint of nutrition, the approach taken was nutritional education aimed mainly at adult females. Some volunteers, known as shokuseikatsu kaizen suishinin (“promoters of dietary life improvement”), were given lessons and practice in modem dietetics and meal preparation. These personnel have worked as a core to change meal content and dietary habit, and it is interesting to note that this has led to a reduction in death due to cerebrovascular attack. A recent dietary survey of the villagers revealed an interesting gender difference in acceptance of the novel meal patterns, with females showing greater acceptance.

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Erratum to : A Rationale for the Development of “Japanese Space Food”

2004 Volume 57 Issue 4 Pages 214
Published: 2004
Released on J-STAGE: December 10, 2009

DOIhttps://doi.org/10.4327/jsnfs.57.214

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