Ulcerative colitis and Crohn’s disease ‘may be preventable through healthy lifestyle’

Up to six in 10 cases of Crohn’s disease and ulcerative colitis may be preventable through a healthy lifestyle, researchers have suggested.

A study published online in the journal Gut said people who are at high risk of developing the conditions due to a hereditary link may be able to take action to cut their chances of developing inflammatory bowel disease (IBD).

IBD is mainly used to describe ulcerative colitis and Crohn’s disease, whose symptoms include abdominal pain, cramps or swelling, recurring or bloody diarrhoea, weight loss and extreme tiredness.

There is no cure for the conditions, which can vary in severity.

Treatments can include following specific diets or taking medicines such as aminosalicylates or mesalazines to reduce inflammation in the gut. Immunosuppressants such as steroids are sometimes given.

According to the NHS, around one in five people with ulcerative colitis have severe symptoms that do not improve with medicine and they may need surgery to remove part of their bowel.

Meanwhile, around 60 to 75% of people with Crohn’s disease will need surgery to repair damage to their digestive system and treat complications.

In the study experts, including from Massachusetts General Hospital in the US, used data from several large, long-term studies of nurses and doctors, involving thousands of people.

The researchers created modifiable risk scores (MRS) to estimate the proportion of IBD cases that could have been avoided.

The MRS ranged from 0-6, with higher scores meaning there were more risk factors.

These risk factors included weight (body mass index), smoking, use of non-steroidal anti-inflammatory drugs such as ibuprofen, how much exercise people took and daily intake of fruit, fibre, vegetables, polyunsaturated fatty acids (PUFAs) and red meat.

Having the healthiest lifestyle was defined as having a healthy weight, never smoking, exercising regularly, at least eight daily servings of fruit and vegetables, less than half a daily serving of red meat, at least 25g of fibre per day, at least two weekly servings of fish, at least half a daily serving of nuts/seeds and a maximum of one alcoholic drink per day for women or two for men.

During the monitoring period, 346 cases of Crohn’s disease and 456 cases of ulcerative colitis were reported among

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