Dietary Reference Intakes for Japanese 2010: Microminerals

Yoshida, Minoru; Kikunaga, Shigeshi; Yamauchi, Jun; Tsubota‐Utsugi, Megumi; Kodama, Hiroko; Morita, Akemi; Esashi, Takatoshi

doi:10.3177/jnsv.59.s91

Cited by 6 publications

(2 citation statements)

References 59 publications

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“…We then excluded those who did not answer the DHQ (n 1). We also excluded participants with severe under-or over-reporting for energy intake as follows: participants with reported energy intake less than half the energy requirement for the lowest physical activity category according to the Dietary Reference Intakes for Japanese, 2015 (33) or participants with reported energy intake equal to or more than 1·5 times the energy requirement for the highest physical activity category, respectively (n 12). We further excluded participants who were currently receiving dietary counselling from a doctor or dietitian (n 45).…”

Section: Discussionmentioning

confidence: 99%

Dietary patterns extracted from the current Japanese diet and their associations with sodium and potassium intakes estimated by repeated 24 h urine collection

Fujiwara

Asakura

Uechi

et al. 2016

Public Health Nutr.

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Objective: To identify dietary patterns in the current Japanese diet and evaluate the associations between these patterns and Na and K intakes. Design: Dietary patterns were extracted by factor analysis from the intakes of food groups assessed with a validated self-administrated diet history questionnaire. Na and K intakes and urinary Na:K were assessed by repeated 24 h urine collection. Subjects: Healthy Japanese adults aged 20-69 years (353 men and 349 women). Setting: Twenty study areas in twenty-three prefectures in Japan. Result: Four dietary patterns were identified in each sex. After adjustment for several confounding factors, the 'Fish and vegetable' pattern was associated with higher urinary Na excretion, but the association was not significant (P = 0·37 in men and P = 0·06 in women). This pattern was also associated with higher K excretion in both sexes. The 'Noodle' pattern tended to be associated with higher urinary Na excretion (P = 0·17 in men and P = 0·04 in women) and higher Na:K (P = 0·02 in men). The 'Meat, vegetable and oil' (in men)/'Meat and oil' (in women) and 'Bread and confectioneries' patterns were not associated with urinary Na excretion (in men) or were negatively associated (in women). Conclusions: Contrary to the case in Western countries, the 'Fish and vegetable' and 'Noodle' patterns contributed to higher Na intake in Japan. Target foods for salt reduction should be set based on careful consideration of the relationships between dietary patterns and Na and K intakes in the target population.

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Section: Discussionmentioning

confidence: 99%

Dietary patterns extracted from the current Japanese diet and their associations with sodium and potassium intakes estimated by repeated 24 h urine collection

Fujiwara

Asakura

Uechi

et al. 2016

Public Health Nutr.

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“…4 Depending on the difference of the bioavailability of zinc, the zinc requirement is 43-144 μg kg −1 body weight per day for adult males and 36-119 μg kg −1 body weight per day for females. 5,6 The recommended nutrient intakes for dietary zinc calculated from the zinc requirement is 65-215 μg kg −1 body weight per day for adult males and 55-179 μg kg −1 body weight per day for females. The upper level of zinc intake for an adult man is set at 692 μg kg −1 body weight per day, although only a few occurrences of acute zinc poisoning have been reported.…”

Section: Introductionmentioning

confidence: 99%

Establishment of a cultivation method for leaf lettuce (Lactuca sativa var. crispa) and komatsuna (Brassica rapa var. perviridis) with high zinc content for patients with zinc deficiency and evaluation of its effectiveness

2020

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BACKGROUND: Insufficient intake of zinc is associated with various diseases worldwide. To overcome this problem, we aimed to establish a method for cultivating leafy vegetables with high zinc content in hydroponics without inhibiting their growth. Furthermore, we evaluated the effectiveness of the cultivated leafy vegetables with high zinc content in zinc-deficient mice. RESULTS: By adjusting the zinc concentration in the hydroponic solution to 5 mg L −1 starting from 7 days before harvesting, the zinc content in leaf lettuce increased eight times of that in the control, without any inhibition of the growth. Furthermore, when oxidized glutathione (GSSG) was added simultaneously with zinc to the hydroponic solution, the zinc content further doubled (16 times of that in the control). Similar results were obtained with komatsuna and red leaf lettuce, although there was a difference in the effect of GSSG treatment. The effectiveness of leafy vegetables with high zinc content in ameliorating zinc deficiency was evaluated by feeding lettuce with high zinc content to zinc-deficient mice. High zinc content lettuce significantly increased the zinc content in the liver, kidneys, gastrocnemius, and tibia of these mice.CONCLUSION: We established a cultivation method for lettuce and komatsuna with high zinc content without inhibiting growth by adjusting the zinc concentration in the hydroponic solution at an appropriate concentration for an appropriate period. The result of feeding test indicates that the intake of leafy vegetables with high zinc content can ameliorate zinc deficiency and might be useful in protection from several diseases associated with this deficiency.

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Improvement of Serum Zinc Levels in Young Japanese Women by Provision of Food Information

Han

Mizoi

Nakatani

et al. 2014

Biol Trace Elem Res

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We investigated whether or not an intervention of providing food information improves serum Zn levels in ninety-two 18-20-year-old Japanese women. The mean serum Zn level of the participants was 73.09 ± 10.56 (mean ± SD) μg/dL, where 79 % of the participants had lower than the reference Zn level (80 μg/dL) proposed by the Japan Society for Biomedical Research on Trace Elements. Participants were divided into food information (INF) group, supplement (SPL) group, and control (C) group, and their serum Zn levels were measured before and after 2 weeks of intervention. The results showed that changes in serum Zn levels were (expressed in μg/dL): 71.23 ± 8.42 to 76.83 ± 12.22 in INF group (NS; not significant), 72.72 ± 10.77 to 84.07 ± 12.03 in SPL group (P < 0.01), and 72.69 ± 9.46 to 74.52 ± 11.44 in C group (NS). Percentage of normal subjects in serum Zn level (>79 mg/dL) were significantly increased in INF group (16.7 to 40%, P < 0.05) and SPL group (17.2 to 69%, P < 0.001) by each intervention. Food information only entailed a table of food items with high Zn content (card-type) and Zn intake menu (recipes). The results suggested that providing food information is effective in improving latent low Zn in young Japanese women.

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Dietary Reference Intakes for Japanese 2010: Microminerals

Cited by 6 publications

References 59 publications

Dietary patterns extracted from the current Japanese diet and their associations with sodium and potassium intakes estimated by repeated 24 h urine collection

Dietary patterns extracted from the current Japanese diet and their associations with sodium and potassium intakes estimated by repeated 24 h urine collection

Establishment of a cultivation method for leaf lettuce (Lactuca sativa var. crispa) and komatsuna (Brassica rapa var. perviridis) with high zinc content for patients with zinc deficiency and evaluation of its effectiveness

Improvement of Serum Zinc Levels in Young Japanese Women by Provision of Food Information

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