Sweet or Not: How High-Glycemic Foods May Affect Your Looks

In an era where health meets beauty in the most unexpected ways, a groundbreaking study has surfaced. Published in PLOS ONE, this research connects the dots between diet, specifically the consumption of refined carbohydrates, and facial attractiveness. The implications? Your morning doughnut might be influencing how attractive you look to others.

sweet high-glycemic foods affect
sweet high-glycemic foods affect, Photo by defense.gov, CC LICENSES

Researchers set out to explore whether foods high in glycemic load — think sugary treats and heavily processed items — could impact one’s allure. They discovered that individuals indulging in a high-glycemic breakfast were perceived as less attractive compared to those who opted for a meal with a lower glycemic load. This finding adds an intriguing layer to the ongoing dialogue about the effects of diet on not just health, but also on aspects like social interactions and professional success.

Claire Berticat, a study author from the Institute of Evolutionary Science of Montpellier, shared, “While the effects of refined carbohydrates on certain hormones are well-documented, it is less known that sex hormones can also be affected.” Given that facial attractiveness is influenced by sex hormones, the link between diet and looks becomes even more compelling.

The study meticulously recruited 104 participants, ensuring a balanced mix of males and females within the age range of 20 to 30 years. After consuming either a high or low glycemic load breakfast, participants’ attractiveness was evaluated by a separate group of raters. This process aimed at objectively measuring the dietary impact on facial perception.

Interestingly, the study also delved into chronic dietary habits. It was found that regular consumption of refined carbohydrates, especially during afternoon snacks and between-meal snacks, generally led to a decrease in attractiveness. This effect was attributed to the long-term physiological consequences of a high glycemic load, such as hyperinsulinemia, which could alter sex hormone levels and, consequently, affect secondary sexual traits.

However, the study revealed nuances. For instance, a high energy intake at breakfast, regardless of its glycemic load, was associated with increased attractiveness for both men and women. This suggests that foods rich in fats and proteins might have a positive effect on how one is perceived. Additionally, the impact of refined carbohydrate consumption varied by meal and gender, highlighting the complexity of dietary influences on physiology.

The researchers emphasized the importance of considering a broad spectrum of factors when investigating the effects of diet on physical appearance. However, the study, similar to all research, has certain limitations, such as not accounting for variables like skin color, menstrual cycle, sleep quality, and overall diet quality. The authors suggest the need for additional research to investigate these factors and comprehend the wider social consequences of diet.

This study offers a fascinating glimpse into how our dietary choices, particularly the consumption of high-glycemic foods, can affect more than just our health. It reminds us of the intricate ways in which what we eat influences not only our physical well-being but also our social and professional lives through factors such as facial attractiveness.The findings underscore the importance of considering the broader implications of our food choices and highlight the need for further research in this area. By understanding the connection between diet and social perceptions, we can make more informed decisions about what we eat and how it may impact various aspects of our lives.

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People who eat more refined carbohydrates ‘may be less attractive to others’