Investigation of the relationship between diet habits and blood lysine concentration:Cross‐sectional observational study in young healthy volunteer college students

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  • Taniguchi Hideki
    Department of Nutrition & Dietetics, Kanagawa University of Human Services
  • Ushigome Keiko
    Department of Nutrition & Dietetics, Kanagawa University of Human Services
  • Imai Natsuko
    Department of Nutrition & Dietetics, Kanagawa University of Human Services
  • Tanaka Akemi
    Department of Nutrition & Dietetics, Kanagawa University of Human Services
  • Arimizu Yumi
    Department of Nutrition & Dietetics, Kanagawa University of Human Services

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  • 食事習慣と血中リジン濃度との関連性の検討
  • ―若年健常大学生ボランティアにおける横断的観察研究の結果より―

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Purpose : In order to provide basic data on the role of lysine in humans classified as limiting amino acid, we investigated the relationship between serum lysine concentration (lysine) and diet habits and various hematological findings.<br>Methods : One hundred and one young healthy volunteer college students (21±2 years, male : female ; 20 : 81) were observed in a cross-sectional study. We investigated the correlation between the lysine value (HPLC method) and lifestyle survey questionnaire, nutritional status, and blood indicators of hematopoiesis.<br>Results : Lysine, in the medium term was reduced due to insufficient intake of legumes. In the short term, a weak correlation to the ingestion of food containing a lot of protein often food and saturated fatty acids was observed (P<0.05). Positive correlations were observed between the lysine concentration and serum albumin, blood glucose, hemoglobin concentration, valine, methionine, isoleucine, leucine, and arginine. Lysine concentration was higher in men (P<0.05).<br>Conclusion : In the results of this study, there was a relationship between lysine and diet habits. Lysine was suggested to be associated with the blood indicator of nutritional status and hematopoiesis.

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