Department of Nutrition and Food Science, University of Granada, 18071 Granada, Spain.
Nutr Res. 2012 Aug;32(8):573-80. doi: 10.1016/j.nutres.2012.06.013. Epub 2012 Jul 31.
The assessment of daily dietary phosphorus (P) intake is a major concern in human nutrition because of its relationship with Ca and Mg metabolism and osteoporosis. Within this context, we hypothesized that several of the methods available for the assessment of daily dietary intake of P are equally accurate and reliable, although few studies have been conducted to confirm this. The aim of this study then was to evaluate daily dietary P intake, which we did by 3 methods: duplicate portion sampling of 108 hospital meals, combined either with spectrophotometric analysis or the use of food composition tables, and 24-hour dietary recall for 3 consecutive days plus the use of food composition tables. The mean P daily dietary intakes found were 1106 ± 221, 1480 ± 221, and 1515 ± 223 mg/d, respectively. Daily dietary intake of P determined by spectrophotometric analysis was significantly lower (P < .001) and closer to dietary reference intakes for adolescents aged from 14 to 18 years (88.5%) and adult subjects (158.1%) compared with the other 2 methods. Duplicate portion sampling with P analysis takes into account the influence of technological and cooking processes on the P content of foods and meals and therefore afforded the most accurate and reliable P daily dietary intakes. The use of referred food composition tables overestimated daily dietary P intake. No adverse effects in relation to P nutrition (deficiencies or toxic effects) were encountered.
评估每日膳食磷 (P) 摄入量是人类营养的一个主要关注点，因为它与钙和镁代谢以及骨质疏松症有关。在这种情况下，我们假设现有的几种评估每日膳食 P 摄入量的方法同样准确可靠，尽管很少有研究证实这一点。因此，本研究的目的是评估每日膳食 P 摄入量，我们通过以下 3 种方法进行评估：对 108 份医院膳食进行重复部分采样，分别与分光光度法分析或使用食物成分表相结合，以及连续 3 天进行 24 小时膳食回忆并使用食物成分表。发现的平均每日膳食 P 摄入量分别为 1106 ± 221、1480 ± 221 和 1515 ± 223mg/d。通过分光光度法分析确定的每日膳食 P 摄入量明显较低（P<.001），与 14 至 18 岁青少年（88.5%）和成年受试者（158.1%）的膳食参考摄入量更接近，而其他 2 种方法则不然。带有 P 分析的重复部分采样考虑了技术和烹饪过程对食物和膳食中 P 含量的影响，因此提供了最准确和可靠的每日膳食 P 摄入量。参考食物成分表的使用高估了每日膳食 P 摄入量。未发现与 P 营养（缺乏或毒性作用）相关的不良影响。
