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为研究北方男性膳食钠摄入量及其对尿钙排出量的影响 ,我们对健康男性 1 49人 (老年人 50名、青年人 48名、青少年 51名 )进行 5天称重法膳食调查 ,测定血清中钙、磷、肌、酐 ,2 4h尿中钙、磷、钠、肌酐。结果显示三组膳食钙的摄入量均低于我国供给量。2 4 h尿钠排出量 (即膳食钠摄入量 ) :青少年组 1 43.85mmol/d,青年组 2 53.7mmol/d,老年组 1 84.4mmol/d,三组间差异显著 ( P<0 .0 0 1 )。尿钙排出量与尿钠排出量呈显著正相关 ( P<0 .0 0 1 )。提示北方男性钙的需要量可能受钠的摄入量影响 ,在制定膳食钙供给量标准时应考虑钠的摄入量
To study the dietary sodium intake and urinary calcium excretion in northern males, we conducted a 5-day weighed dietary survey of 119 healthy males (50 elderly, 48 young, 51 adolescents) Determination of serum calcium, phosphorus, muscle, anhydride, 24 h urinary calcium, phosphorus, sodium, creatinine. The results showed that three groups of dietary calcium intake were lower than China’s supply. 24 h urinary sodium excretion (ie dietary sodium intake): adolescent group 1 43.85mmol / d, young group 2 53.7mmol / d, old group 1 84.4mmol / d, significant difference between the three groups (P <0. 0 0 1). There was a significant positive correlation between urinary calcium excretion and urinary sodium excretion (P <0.01). Suggesting that the northern male calcium requirements may be affected by sodium intake, in the development of dietary calcium supply standards should take into account sodium intake