title: Trends and nutritional status for magnesium in Taiwan from NAHSIT 1993 to 2008.
abstract: Data from nationwide population-based nutrition surveys in Taiwan were used to investigate trends and nutritional status for magnesium from 1993 to 2008. Dietary magnesium intake was estimated from 24-hour dietary recalls. Serum and urinary magnesium were also measured. In Nutrition and Health Survey in Taiwan (NAHSIT) 2005-2008, average magnesium intake was 305 mg and 259 mg for adult males and females, respectively, which is equivalent to 82-85% of relevant Taiwanese Dietary Reference Intakes (DRIs). After correcting intra-individual variation, 74-81% of adult subjects' dietary magnesium was estimated as sub-optimal. Mean serum magnesium concentration was 0.866 mmol/L and 0.861 mmol/L for the males and females, respectively. The prevalence of low serum magnesium (<0.8 mmol/L) was 12.3% and 23.7% for the males and females, respectively. There was positive association among dietary magnesium, blood magnesium, and urinary magnesium/creatinine ratio. From NAHSIT 1993-1996 to NAHSIT 2005-2008, dietary magnesium significantly increased (p<0.05), the blood magnesium and urinary magnesium/creatinine ratio decreased (p<0.05). The findings suggest that the relationships between dietary magnesium and biochemical markers among different nutrition and health surveys are not straightforward and need to be further clarified.
authors.affiliation: Dept of Food and Nutrition, Providence University, 200 Chung-Chi Rd, Salu Dist. Taichung city 43301, Taiwan.
authors.forename: Jui-Line
authors.initials: JL
authors.lastname: Wang
authors.forename: Yao-Lin
authors.initials: YL
authors.lastname: Weng
authors.forename: Wen-Harn
authors.initials: WH
authors.lastname: Pan
authors.forename: Mei-Ding
authors.initials: MD
authors.lastname: Kao
mesh_terms: D000328:Adult; D017677:Age Distribution; D000368:Aged; D015415:Biomarkers / Q000097:blood / Q000652:urine; D003404:Creatinine / Q000652:urine; D004032:Diet / Q000379:methods* / Q000706:statistics & numerical data; D005260:Female; D006306:Health Surveys / Q000379:methods / Q000706:statistics & numerical data; D006801:Humans; D008274:Magnesium / Q000008:administration & dosage* / Q000097:blood / Q000652:urine; D008297:Male; D008875:Middle Aged; D009749:Nutrition Surveys / Q000379:methods* / Q000706:statistics & numerical data; D009752:Nutritional Status; D017678:Sex Distribution; D013624:Taiwan; D055815:Young Adult
chemical_list: D015415:Biomarkers; D003404:Creatinine; D008274:Magnesium