Department of Bromatology, Faculty of Pharmacy with the Division of Laboratory Medicine, Medical University of Białystok, Mickiewicza 2D Street, 15-222 Białystok, Poland.
Nutrients. 2021 Sep 28;13(10):3416. doi: 10.3390/nu13103416.
Food supplements (FS) are gaining more and more popularity because they are a quick way to compensate for deficiencies in the diet. Due to their affordable price and easy-to-take form, they are eaten by all age groups and by healthy and sick people. There are many categories of this type of preparations on the market, and FS with magnesium (Mg) are some of the most commonly used. Therefore, the aim of the study was to determine the Mg content in FS and to compare the estimated value with that declared by the manufacturer. The study included 116 FS containing Mg. In order to determine the Mg content, the atomic absorption spectrometry (AAS) method was used. The tested FS were divided in terms of the declared content, pharmaceutical form, chemical form of Mg, composition complexity, and price. It was shown that in the case of 58.7% of the samples, the Mg content was different than the permissible tolerance limits set by the Polish chief sanitary inspectorate, which range from -20% to +45%. It has been estimated that as a result of the differences in the content, the patient may take up to 304% more Mg per day or 98% less than it is stated in the declaration. The above results indicate that the quality and safety of FS should be more closely monitored.
食品补充剂（FS）越来越受欢迎，因为它们是一种快速弥补饮食中不足的方法。由于其价格实惠且易于服用，所有年龄段的人群，包括健康人和病人，都在食用。市场上有许多种类的这类制剂，其中含镁（Mg）的 FS 是最常用的制剂之一。因此，本研究的目的是确定 FS 中的 Mg 含量，并比较制造商所宣称的估计值与实际值。该研究包括 116 种含镁的 FS。为了确定 Mg 含量，采用原子吸收光谱法（AAS）进行测定。所测试的 FS 按照宣称的含量、药物形式、Mg 的化学形式、组成复杂程度和价格进行了分类。结果表明，在 58.7%的样品中，Mg 含量与波兰首席卫生监督机构设定的允许公差范围（-20%至+45%）不同。据估计，由于含量的差异，患者每天可能摄入的 Mg 高达 304%，或比声明中少 98%。上述结果表明，应更密切地监测 FS 的质量和安全性。
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