Campbelltown Campus, School of Health Sciences, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.
Health Equity Laboratory, Campbelltown, Sydney, NSW 2560, Australia.
Int J Environ Res Public Health. 2022 Oct 28;19(21):14087. doi: 10.3390/ijerph192114087.
The use of fluoride is effective in preventing dental caries. However, an excessive intake of fluoride leads to dental fluorosis, making it necessary to regularly monitor the fluoride intake especially for infants. There is hitherto a lack of information on fluoride content in infant foods from an Australian perspective. Therefore, this study aims to estimate the amount of fluoride content from a range of commercially available ready-to-eat (RTE) infant foods and drinks available in Australia. Based on an external calibration method, potentiometry involving a fluoride ion selective electrode and a silver|silver chloride reference electrode was conducted to analyse the fluoride content of a total of 326 solid food samples and 49 liquid food samples in this work. Our results showed an overall median (range) fluoride content of 0.16 (0.001-2.8) µg F/g of solid food samples, and 0.020 (0.002-1.2) µg F/mL of liquid food samples. In addition, ~77.5% of the liquid samples revealed a fluoride content < 0.05% µg F/mL. The highest variation of fluoride concentration (0.014-0.92 µg F/g) was found in formulas for ≥6 month-old infants. We have attributed the wide fluoride content variations in ready-to-eat infant foods and drinks to the processing steps, different ingredients and their origins, including water. In general, we found the fluoride content in most of the collected samples from Australian markets to be high and may therefore carry a risk of dental fluorosis. These results highlight the need for parents to receive appropriate information on the fluoride content of ready-to-eat infant food and drinks.
氟化物的使用在预防龋齿方面是有效的。然而，过量摄入氟化物会导致氟斑牙，因此有必要定期监测氟化物的摄入量，尤其是对于婴儿。目前，从澳大利亚的角度来看，关于婴儿食品中氟化物含量的信息还很缺乏。因此，本研究旨在估计澳大利亚市售的即食（RTE）婴儿食品和饮料中氟化物的含量。本工作采用外部校准方法，通过氟离子选择电极和银|氯化银参比电极进行电位法，对 326 种固体食品样品和 49 种液体食品样品中的氟化物含量进行了分析。我们的结果表明，固体食品样品的总体中位数（范围）氟化物含量为 0.16（0.001-2.8）µg F/g，液体食品样品的中位数（范围）氟化物含量为 0.020（0.002-1.2）µg F/mL。此外，约 77.5%的液体样品的氟化物含量<0.05µg F/mL。在 6 个月以上婴儿配方奶粉中发现氟化物浓度的变化最大（0.014-0.92µg F/g）。我们将即食婴儿食品和饮料中氟化物含量的广泛变化归因于加工步骤、不同的成分及其来源，包括水。总的来说，我们发现从澳大利亚市场收集的大多数样本中的氟化物含量都很高，因此可能存在氟斑牙的风险。这些结果强调了父母需要获得有关即食婴儿食品和饮料中氟化物含量的适当信息。
