New diet therapy
Online ISSN : 2434-7159
Print ISSN : 0910-7258
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  • Takamasa Masuda, Akiko Matsubara, Hirohito Ishikawa, Yosuke Takimoto, ...
    2021 Volume 37 Issue 1 Pages 3-11
    Published: 2021
    Released: July 01, 2021

      Pineapple, one of the most popular fruits consumed throughout the world, contains various nutrients and has been reported to have various health effects. Since most of research on the health effects of pineapple has been conducted on Westerners, the effects on Japanese with different intestinal flora and skin type from Westerners are not clear. To exploratively evaluate the health benefits of pineapple intake for the Japanese, a randomized, untreated-controlled, parallel-group clinical trial was conducted. Japanese women tending to get constipate were given 100 g of pineapple per day for 4 weeks, and the intestinal flora, defecation status, skin questionnaire, and blood components were measured before and after ingestion. As a result, effects on changing the intestinal flora, defecation status, and skin condition were observed in the pineapple intake group. These results may lead next study investigating the respective interaction between pineapple intake, intestinal condition and skin condition.

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  • Mika Takeuchi, Koide Atsumi, Kurata Miki
    2021 Volume 37 Issue 1 Pages 13-22
    Published: 2021
    Released: July 01, 2021

      This study measured skeletal muscle mass index (SMI) and grip strength for 53 healthy young women aged 20–21 years. Subjects were classifed into a low SMI (LSm) group) with SMI <5.7 kg/m2 and a normal SMI (NSm) group) with SMI ≥5.7 kg/m2. Perception of current body type, dietary behaviors, and dietary and food group intakes were compared between groups.

      The LSm group (37.7%) showed signifcantly lower body mass index (BMI), grip strength, saturated fatty acid levels, and calcium intake than the NSm group. However, no signifcant differences in body fat percentage, fat mass index, perception of body type, or dietary behaviors were evident between groups. BMI, grip strength, and dietary intake for the overall cohort were roughly the same as national health and nutrition examination survey for Japanese women in their 20s, but these values were lower in the LSm group.

      These results suggest that about 40% of healthy young women today have low skeletal muscle mass.

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