Homemade Kefir Consumption Improves Skin Condition—A Study Conducted in Healthy and Atopic Volunteers

Diet has a fundamental role in the homeostasis of bodily functions, including the skin, which, as an essential protective barrier, plays a crucial role in this balance. The skin and intestine appear to share a series of indirect metabolic pathways, in a dual relationship known as the “gut-skin axis”...

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Autores principales:	Emília Alves, João Gregório, André Rolim Baby, Patrícia Rijo, Luis M. Rodrigues, Catarina Rosado
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	kefir cutaneous health atopic dermatitis transepidermal water loss (TEWL) hydration skin barrier Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/7b8ebb6a2d5540bd90b7e37c699dda51
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spelling	oai:doaj.org-article:7b8ebb6a2d5540bd90b7e37c699dda512021-11-25T17:35:42ZHomemade Kefir Consumption Improves Skin Condition—A Study Conducted in Healthy and Atopic Volunteers10.3390/foods101127942304-8158https://doaj.org/article/7b8ebb6a2d5540bd90b7e37c699dda512021-11-01T00:00:00Zhttps://www.mdpi.com/2304-8158/10/11/2794https://doaj.org/toc/2304-8158Diet has a fundamental role in the homeostasis of bodily functions, including the skin, which, as an essential protective barrier, plays a crucial role in this balance. The skin and intestine appear to share a series of indirect metabolic pathways, in a dual relationship known as the “gut-skin axis”. Hence, the gut-skin axis might be receptive to modulation via dietary modification, where probiotics can be included, thus representing a potential therapeutic target in inflammatory skin diseases, such as atopic dermatitis (AD), in order to control and/or ameliorate symptoms. Kefir is one of the most ancient fermented foods, with probiotic characteristics that have been associated with a wide variety of health-promoting benefits, and it presents a microbiological diversity that makes its application as a probiotic in the gut-skin relationship of the utmost interest. However, the impact of a diet containing kefir on skin health has yet to be reported in scientific literature. This study aimed to assess the impact of the intake of homemade kefir in the skin of healthy and atopic volunteers. The intervention resulted in a boost on barrier function in both skin types verified only in the respective kefir intake groups. An improvement in the degree of severity of AD was also confirmed for the kefir intake group. Atopic individuals may benefit from kefir intake, especially in regard to their skin hydration. Finally, the effects observed on skin barrier function in this study probably culminate from the effects of all the ingredients in kefir, including the complex microbiota, its metabolites and macro- and micronutrients resulting from the fermentation. This work opens the way for more advanced research on the impact of the probiotic kefir on cutaneous health, further clarifying its mechanism of action namely via gut-skin axis.Emília AlvesJoão GregórioAndré Rolim BabyPatrícia RijoLuis M. RodriguesCatarina RosadoMDPI AGarticlekefircutaneous healthatopic dermatitistransepidermal water loss (TEWL)hydrationskin barrierChemical technologyTP1-1185ENFoods, Vol 10, Iss 2794, p 2794 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	kefir cutaneous health atopic dermatitis transepidermal water loss (TEWL) hydration skin barrier Chemical technology TP1-1185
spellingShingle	kefir cutaneous health atopic dermatitis transepidermal water loss (TEWL) hydration skin barrier Chemical technology TP1-1185 Emília Alves João Gregório André Rolim Baby Patrícia Rijo Luis M. Rodrigues Catarina Rosado Homemade Kefir Consumption Improves Skin Condition—A Study Conducted in Healthy and Atopic Volunteers
description	Diet has a fundamental role in the homeostasis of bodily functions, including the skin, which, as an essential protective barrier, plays a crucial role in this balance. The skin and intestine appear to share a series of indirect metabolic pathways, in a dual relationship known as the “gut-skin axis”. Hence, the gut-skin axis might be receptive to modulation via dietary modification, where probiotics can be included, thus representing a potential therapeutic target in inflammatory skin diseases, such as atopic dermatitis (AD), in order to control and/or ameliorate symptoms. Kefir is one of the most ancient fermented foods, with probiotic characteristics that have been associated with a wide variety of health-promoting benefits, and it presents a microbiological diversity that makes its application as a probiotic in the gut-skin relationship of the utmost interest. However, the impact of a diet containing kefir on skin health has yet to be reported in scientific literature. This study aimed to assess the impact of the intake of homemade kefir in the skin of healthy and atopic volunteers. The intervention resulted in a boost on barrier function in both skin types verified only in the respective kefir intake groups. An improvement in the degree of severity of AD was also confirmed for the kefir intake group. Atopic individuals may benefit from kefir intake, especially in regard to their skin hydration. Finally, the effects observed on skin barrier function in this study probably culminate from the effects of all the ingredients in kefir, including the complex microbiota, its metabolites and macro- and micronutrients resulting from the fermentation. This work opens the way for more advanced research on the impact of the probiotic kefir on cutaneous health, further clarifying its mechanism of action namely via gut-skin axis.
format	article
author	Emília Alves João Gregório André Rolim Baby Patrícia Rijo Luis M. Rodrigues Catarina Rosado
author_facet	Emília Alves João Gregório André Rolim Baby Patrícia Rijo Luis M. Rodrigues Catarina Rosado
author_sort	Emília Alves
title	Homemade Kefir Consumption Improves Skin Condition—A Study Conducted in Healthy and Atopic Volunteers
title_short	Homemade Kefir Consumption Improves Skin Condition—A Study Conducted in Healthy and Atopic Volunteers
title_full	Homemade Kefir Consumption Improves Skin Condition—A Study Conducted in Healthy and Atopic Volunteers
title_fullStr	Homemade Kefir Consumption Improves Skin Condition—A Study Conducted in Healthy and Atopic Volunteers
title_full_unstemmed	Homemade Kefir Consumption Improves Skin Condition—A Study Conducted in Healthy and Atopic Volunteers
title_sort	homemade kefir consumption improves skin condition—a study conducted in healthy and atopic volunteers
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7b8ebb6a2d5540bd90b7e37c699dda51
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Homemade Kefir Consumption Improves Skin Condition—A Study Conducted in Healthy and Atopic Volunteers

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