Benefits and Safety of FODMAP Diet in Children

The low FODMAP diet, a diet low in carbohydrates that trigger digestive symptoms like bloating and stomach pain, is a useful treatment in children and adolescents with gastrointestinal problems, new University of Otago research confirms.

The Otago research involved a clinical review of 29 children from Christchurch Public Hospital aged between 4 and 17 who were following the low FODMAP diet under the guidance of specialists.

Complete resolution of gastrointestinal symptoms was observed in 92 per cent of the children with bloating, 87 per cent of those with diarrhea and 77 per cent of those with abdominal pain.

Lead author of the review, Professor Andrew Day from the University of Otago, Christchurch, explains that while the low FODMAP diet is well established as a safe and effective dietary strategy to alleviate bowel symptoms in adults, there is currently little data examining the benefits and safety of dietary interventions that restrict carbohydrates in children with bowel disorders.

“To our knowledge the present study is the only one to report efficacy and safety data for the low FODMAP diet in children with functional bowel disorders in a real-world setting,” Professor Day, a paediatric gastroenterologist, says.

Given the increase in the number of children worldwide suffering from some form of functional bowel disorders, Professor Day says studies are required to determine the efficacy and safety of the diet in children.

“This study showed that more than 50 per cent of children with a bowel disorder who complete the FODMAP restriction and reintroduction process will have complete resolution of symptoms, particularly those with lower GI (gastrointestinal) symptoms.”

The results are similar to those previously reported in adults. The diet appears to be more beneficial for participants with symptoms of flatulence, diarrhea, abdominal pain and distention.

In the study, most participants reported a “substantial improvement” of their symptoms with those with abdominal bloating having the highest rate of improvement, followed by those with abdominal pain.

Fructans were the most common intolerance (67 per cent), followed by lactose (56 per cent), polyols (7 per cent), fructose (7 per cent) and galactose oligosaccharides (7 per cent). Six children (24 per cent) specifically identified that apples (fructose and sorbitol) triggered symptoms.

Professor Day says further studies are needed in children to better understand factors such as the impacts on growth and the gut microbiome and the consequences of long-term dietary restriction.

The research was recently published in the science journal, JGH Open.

Materials provided by: University of Otago

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