Nearly 10% of ‘gluten-free’ restaurant dishes contain gluten, Melbourne study finds
Many foods promoted as “gluten free” in Melbourne eateries contain levels of gluten that can be dangerous to people suffering from coeliac disease, a survey of 127 restaurants has found.
The findings, published in the Medical Journal of Australia May 28 2018 issue found that of 158 samples of “gluten-free” dishes from 127 randomly selected restaurants within the city of Melbourne council, 9% contained detectable gluten and were not compliant with the Food Standards Australia New Zealand definition of gluten free.
Coeliac disease is an autoimmune disorder, not a food intolerance or allergy. It causes the immune system to attack the bowel after the ingestion of gluten, a protein found in grains such as wheat, spelt and barley.
This immune system reaction causes inflammation and damage to the small bowel. Over time, the tiny finger-like projections in the bowel, essential for nutrient absorption, flatten and die.
After eating foods containing gluten some sufferers experience severe reactions, such as diarrhoea and stomach pain, although others have no visible symptoms. But ingesting gluten puts those with coeliac disease at risk of developing serious conditions in the long term such as cancer, infertility and osteoporosis.
The only way to treat coeliac disease and avoid serious complications is to adhere to a lifelong, strict, gluten-free diet.
The study was led by Dr Jason Tye-Din, laboratory head at the Walter and Eliza Hall Institute of Medical Research, and a gastroenterology consultant at Royal Melbourne hospital, who spoke with Gurdian Australia about the reasons for conducting the study.
Tye-Din said he and his colleagues undertook the study after being baffled by patients who were not getting better despite following a strict gluten-free diet.
“Lots of staff believed that spelt was gluten free for example, and maybe this is because it is often promoted as an alternative to wheat,” Tye-Din said.
There was also a lack of knowledge about what the Food Standards Australia New Zealand standards were. Only 10% of food service staff had good knowledge of its code, the study found.
He said while it may be safer for those with coeliac disease to avoid eating out, this was not realistic and would affect their quality of life. Rather, restaurants should be educated and empowered to provide safe food.
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