基因 vs. 習慣:後天也能改變?雖然基因影響我們的嗅覺與味覺,但後天經驗與飲食文化同樣扮演重要角色。例如,長期接觸香菜料理(如越南河粉、台式蚵仔麵線、墨西哥莎莎醬),有些人會逐漸降低對香菜的厭惡感,甚至慢慢能接受、喜歡。味覺神經具有可塑性,這意味著即便有基因上的傾向,我們的大腦仍有一定的調整空間。 臨床與健康意義對醫療專業而言,OR6A2 基因雖然不屬於常規臨床檢測項目,但它提醒我們:
Eriksson, N., Wu, S., Do, C. B., Kiefer, A. K., Tung, J. Y., Mountain, J. L., … & Hinds, D. A. (2012). A genetic variant near olfactory receptor genes influences cilantro preference. Flavour, 1(1), 22.
Cannon, R. J., & Ho, C. T. (2018). Volatile compounds of culinary herbs and spices: Recent advances in analysis and potential health benefits. Food Science and Human Wellness, 7(2), 109-123.
Charles Spence (2015). Just how much of what we taste derives from the sense of smell? Flavour, 4(1), 30.