Tag Archives: fibre diet

High fibre diet benefits

Eating brown bread or wholegrain cereals three times a day cuts the risk of bowel cancer by a fifth, a major study has shown.

But surprisingly, researchers found no ‘significant evidence’ that eating more legumes such as beans, peas, lentils, and peanuts, or consuming a lot of fruit and vegetables, guarded against bowel cancer.

The researchers, including experts from Imperial College London and the University of Leeds, looked at previous studies that involved almost two million people.

They found a strong link between diets rich in whole grain cereals and protection against bowel cancer – the third most common in Britain.

For every 10g a day increase in fibre intake, there was a 10 per cent drop in risk of bowel cancer.

High fibre diet

High fibre diet

It had been suggested since the 1960s that fibre helped the function of the intestines, protecting people from bowel cancer. But previous research provided no support for the assumption.

The latest findings, however, based on an analysis of 25 studies, showed that adding three servings (90g/3oz) of wholegrain food to a daily diet brought a 20 per cent reduction in the risk of bowel cancer.

The researchers said: ‘A high intake of dietary fibre, in particular cereal fibre and whole grains, was associated with a reduced risk of colorectal cancer.’

The findings were published in the British Medical Journal.


Professor Anne Tjonneland, of the Danish Cancer Society, reviewed the analysis for the journal and said it adds to the current evidence of the many health effects of whole grains.

Epidemiologist Dr Dagfinn Aune, of Imperial College London, said there was a clear gradient in risk reduction associated with increasing amounts of dietary fibre.

The researchers said there were ‘biologically plausible’ explanations for the benefits of dietary fibre, including its high content of folate and magnesium, which have both been associated with a reduced risk of bowel cancer.

Bowel cancer is diagnosed in 38,500 people a year in the UK, and kills more than 16,000.

Diverticular disease news

A diet without meat and, therefore, a greater quantity of vegetables, has already been shown to decrease a person’s risk of developing colon cancer; now research from the Cancer Epidemiology Unit at the University of Oxford has revealed that a vegetarian diet is also good for preventing diverticular disease, a common bowel disorder.

In diverticular disease pressure builds inside the colon (the large intestine) causing pockets of tissue to bulge outwards – these are called diverticula. In itself this may not be a problem but, if a diverticulum ruptures, infection may set in – this is when the condition is called diverticulitis. Among its symptoms are abdominal pain, tenderness and fever. It is more common in the Western world and rare in areas such as Asia and Africa, indicating that diet or other lifestyle choices may play a role in the disease.

Earlier research suggested that diverticular disease could be a result of a low-fibre diet but now a team from the University of Oxford has found a significant link between choosing to eat a meat-free diet and a 30% lower risk of developing the disease. This would also explain the difference between prevalence of the disease in Western countries, where a lot of meat is eaten, compared to Asia and Africa.

Diverticular disease

Diverticular disease

Using data from more than 47,000 generally health-conscious British men and women, the researchers found that around a third ate a vegetarian diet.

When the researchers followed up the study participants around 10 years later, they found that 812 individuals had been diagnosed with diverticular disease. After adjusting for other potential contributing factors such as smoking, alcohol consumption and body mass index, the researchers found that vegetarians did indeed have a lower risk of the disease. They also found a significant link between a higher intake of dietary fibre, with those eating around 25g per day having a lower risk than those who ate less than 14g per day. The recommended daily intake is 18g per day.


Adapt your diet

Eat less meat and add more fibre, and you’ll have more regular bowel movements, lower your cholesterol levels, maintain healthy weight more easily and control blood sugar levels.

Here’s how:

*Wholemeal breads Look for 100% whole grain or whole wheat. Many breads say ‘made with wholemeal’ but they may not contain as much fibre as the real deal. Choose those with whole grains too, many loaves contain whole oats, sesame seeds or other grains.

*Cereals Look for those containing bran, whole oats or brown rice, wild rice, barley, wholewheat pasta and bulgar wheat Vegetables. Add them to soups, snack on them between meals.

*Fruit Eat an orange instead of drinking a glass of juice and you’ll add instant fibre to your diet. Be sure to munch on apples and pears with their skins too, which adds fibre. Fruits are great in smoothies or as a snack, you can also add high-fibre fruits like prunes or apples to pork dishes, sliced pear in a salad with cheese, or simply in a fruit salad as dessert.