Sección de Endocrinología y Nutrición, Hospital Universitario Dr. Peset, Valencia, España.
Sección de Endocrinología y Nutrición, Hospital Universitario Dr. Peset, Valencia, España; Departamento de Medicina, Universidad de Valencia, Valencia, España.
Endocrinol Diabetes Nutr (Engl Ed). 2020 Aug-Sep;67(7):431-437. doi: 10.1016/j.endinu.2019.11.003. Epub 2020 Jan 28.
To use Google Trends to explore the trends of interest of the Spanish population regarding information related to different types of diets, focused on those that are popular and with evidence-based studies, over the last 10years.
The search trends referred to the terms «Mediterranean diet», «ketogenic diet», «low fat diet», «intermittent fasting» and «vegan diet» were analyzed. The relative search volumes (RSV) of the terms were compared. The direction of the trend was studied using the Spearman's correlation coefficient (SC).
«Mediterranean diet» was the most widely searched term, with a median RSV of 16 (interquartile range [IQR] 6; range 8-100), though it exhibited a decreasing chronological trend (SC=-0.216). It was followed by «ketogenic diet», with an RSV of 8 (IQR 9; range 1-57); «vegan diet», with an RSV of 4 (IQR 5; range 0-16); «intermittent fasting», with an RSV of 2 (IQR 5; range 0-27), and «low fat diet», with an RSV of 1.16 (IQR 0; range 0-2). The term with the best correlation over time was «intermittent fasting» (SC=0.96), followed by «ketogenic diet» (SC=0.91) and «vegan diet» (SC=0.85).
In Spain, the interest of the population in information about the Mediterranean diet is greater than for other diets. However, in recent years there has been a progressive increase in interest (measured as RSV) in other diets such as the ketogenic diet, vegan diet or intermittent fasting, and there has been a decrease in interest in the Mediterranean diet. The low fat diet does not generate interest in the Spanish population.
利用谷歌趋势（Google Trends）探讨过去 10 年西班牙民众对不同类型饮食相关信息的兴趣趋势，重点关注那些受欢迎且有循证研究支持的饮食方式。
分析了“地中海饮食”“生酮饮食”“低脂饮食”“间歇性禁食”和“纯素饮食”这 4 个术语的搜索趋势。比较了这些术语的相对搜索量（RSV）。使用斯皮尔曼等级相关系数（Spearman's correlation coefficient，SC）研究趋势的方向。
“地中海饮食”是搜索量最高的术语，中位数 RSV 为 16（四分位距[IQR]6；范围 8-100），但呈下降的时间趋势（SC=-0.216）。其次是“生酮饮食”，RSV 为 8（IQR 9；范围 1-57）；“纯素饮食”，RSV 为 4（IQR 5；范围 0-16）；“间歇性禁食”，RSV 为 2（IQR 5；范围 0-27）；“低脂饮食”，RSV 为 1.16（IQR 0；范围 0-2）。随着时间推移相关性最好的术语是“间歇性禁食”（SC=0.96），其次是“生酮饮食”（SC=0.91）和“纯素饮食”（SC=0.85）。
在西班牙，民众对地中海饮食信息的兴趣比对其他饮食方式的兴趣更大。然而，近年来，人们对生酮饮食、纯素饮食或间歇性禁食等其他饮食方式的兴趣呈逐渐上升趋势（以 RSV 衡量），而对地中海饮食的兴趣则有所下降。低脂饮食在西班牙人群中没有引起兴趣。
