Department of the Treatment of Obesity and Metabolic Disorders, and of Clinical Dietetics, Poznań University of Medical Sciences, Szamarzewskiego 82/84, 60-569 Poznań, Poland.
Nutrients. 2020 Mar 26;12(4):908. doi: 10.3390/nu12040908.
The internet provides access to information about dietary supplements and allows their easy purchase. We aimed to rank the interest of Google users in dietary supplements and to determine the changes that occurred in their popularity from 2004 to 2019. We used Google Trends to generate data over time on regional interest in dietary supplements (n = 200). We categorized each included supplement and calculated the interest in all topics in proportion to the relative search volume (RSV) of "lutein". We analyzed the trends over time of all topics and categories. Globally, the topics with the highest popularity were "magnesium", which was 23.72 times more popular than "lutein", "protein" (15.22 times more popular), and "iron" (15.12). The categories of supplements receiving most interest were protein (9.64), mineral (5.24), and vitamin (3.47). The RSV of seven categories of topics (amino acid, bacterial, botanical, fiber, mineral, protein, and vitamin) increased over time while two categories (enzyme and fat or fatty acid) saw a drop in their RSV. Overall, 119 topics saw an increase in interest over time, 19 remained stable, and 62 saw interest in them decrease. Google Trends provides insights into e-discourse and enables analysis of the differences in popularity of certain topics across countries and over time.
互联网提供了有关膳食补充剂的信息，并允许人们轻松购买。我们旨在评估谷歌用户对膳食补充剂的兴趣，并确定从 2004 年到 2019 年它们的受欢迎程度发生的变化。我们使用 Google Trends 随时间生成有关区域对膳食补充剂兴趣的数据（n = 200）。我们对每个包含的补充剂进行了分类，并根据“叶黄素”的相对搜索量（RSV）计算了所有主题的兴趣比例。我们分析了所有主题和类别的随时间的趋势。在全球范围内，最受欢迎的主题是“镁”，其受欢迎程度是“叶黄素”的 23.72 倍，“蛋白质”（15.22 倍）和“铁”（15.12 倍）。最受欢迎的补充剂类别是蛋白质（9.64）、矿物质（5.24）和维生素（3.47）。七个主题类别的 RSV（氨基酸、细菌、植物、纤维、矿物质、蛋白质和维生素）随着时间的推移而增加，而两个类别的 RSV（酶和脂肪或脂肪酸）则有所下降。总体而言，119 个主题的兴趣随着时间的推移而增加，19 个主题保持稳定，62 个主题的兴趣下降。Google Trends 提供了对电子话语的洞察，并能够分析特定主题在不同国家和随时间的受欢迎程度差异。
