CBIOS - Research Center for Biosciences & Health Technologies, Universidade Lusófona School of Health Sciences, Lisbon, Portugal.
Skin Res Technol. 2024 Jul;30(7):e13798. doi: 10.1111/srt.13798.
Skin physiology seems to be influenced by dietary choices and body composition, although links between these factors remain poorly characterised. In the present manuscript, we elaborate on the potential relationships among food groups, body composition and skin physiology in omnivores and vegetarians.
This cross-sectional observational study involved 181 participants, 129 omnivores and 52 vegetarians. The main functions of the skin measured in our laboratory were transepidermal water loss, deep and superficial epidermal hydration, skin elasticity, and carotenoid content. Skin variables obtained from different body regions were made comparable by a new Proportional Skin Index calculated to respect their relative representativity.
No statistical differences were found when comparing both groups' body composition and skin variables from different body regions, with the exception of the skin carotenoid content significantly higher in the vegetarian group (p < 0.001).
Although dietary patterns significantly differed between groups, with vegetarians consuming fewer animal-derived products and more plant-based foods, multiple linear regression analysis revealed no differences or association between the dietary pattern and the skin physiology. These findings highlight the need for further research to elucidate the specific impact of diet and food groups and body composition on skin physiology.
皮肤生理学似乎受到饮食选择和身体成分的影响，尽管这些因素之间的联系仍未得到充分描述。在本手稿中，我们详细阐述了杂食者和素食者中食物组、身体成分和皮肤生理学之间的潜在关系。
本横断面观察性研究涉及 181 名参与者，其中 129 名为杂食者，52 名为素食者。我们实验室测量的皮肤主要功能包括经表皮水分流失、深层和浅层表皮水分、皮肤弹性和类胡萝卜素含量。通过新的比例皮肤指数计算，使来自不同身体部位的皮肤变量具有可比性，以尊重它们的相对代表性。
两组的身体成分和来自不同身体部位的皮肤变量比较时，没有发现统计学差异，除了素食者的皮肤类胡萝卜素含量明显更高（p < 0.001）。
尽管两组的饮食模式存在显著差异，素食者摄入的动物源性产品较少，植物性食物较多，但多元线性回归分析显示，饮食模式与皮肤生理学之间没有差异或关联。这些发现强调需要进一步研究，以阐明饮食和食物组以及身体成分对皮肤生理学的具体影响。
