4.4 Article

The truth about gluten!

Journal

BRITISH JOURNAL OF NUTRITION
Volume 129, Issue 2, Pages 255-261

Publisher

CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0007114522001933

Keywords

Coeliac disease; Gluten; Diet; Irritable bowel syndrome

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Wheat, and the gluten it contains, are relatively new introductions to the human diet, with cultivation beginning around 9000 BC. The increased global wheat output in the 20th century has led to a higher prevalence of gluten-related disorders, such as coeliac disease. However, there is also a growing number of individuals without coeliac disease who choose to follow a gluten-free diet, raising uncertainties in the understanding and management of gluten-related disorders.
Wheat was first cultivated in the Fertile Crescent (South Western Asia) with a farming expansion that lasted from around 9000 BC to 4000 BC. Whilst humans have been exposed to wheat for around the last 10 000 years, humans have existed for greater than 2middot5 million years. Therefore, wheat (and thereby gluten) are relatively new introductions to our diet! By the end of the 20th century, global wheat output had expanded by 5-fold, with a corresponding increase in the prevalence of gluten-related disorders. Coeliac disease (CD) is a state of heightened immunological responsiveness to ingested gluten in genetically susceptible individuals. CD now affects 1 % or more of all adults, for which the management is a strict lifelong gluten-free diet (GFD). However, there is a growing body of evidence to show that a far greater proportion of individuals without CD are self-initiating a GFD. This includes individuals initiating a GFD as a lifestyle choice, people with irritable bowel-type symptoms and those diagnosed with non-coeliac gluten (or wheat) sensitivity. Despite a greater recognition of gluten-related disorders, gaps still remain in our understanding of both their aetiology and management. This article explores the role of the gluten-free diet in gluten-related disorders, along with current uncertainties.

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