Are you getting enough fibre? Here’s why it’s so important
Fibre isn't just about good digestion - it's key for overall health but many of us aren't getting enough.
Dietary fibre isn’t exactly the most exciting term in the wellness world. Unlike trendy buzzwords like keto and paleo, it can conjure up images of tasteless grains, and the type of brown-bread sandwiches you hated as a kid.
But fibre it isn’t as bland as you think – and there’s good reason why all of us should take conscious steps to make sure we’re getting enough.
A recent study published in The Lancet study found people who routinely eat lots of fibre have significantly lower rates of diseases like heart disease, stroke and type 2 diabetes, compared with those who consume much lower amounts. Yet, the British Nutrition Foundation says that in the UK, most people still don’t fall within the government guidelines for daily fibre intake.
So, why is fibre so important, and what can we do to make sure we’re regularly topped up? We asked some health experts for their top tips…
How much fibre should I be eating?
“We recommended that adults in the UK eat 30g of fibre a day, but on average we’re eating much less – about 20g per day,” says Bridget Benelam, nutrition communications manager at The British Nutrition Foundation.
It can be tricky to tell if you’re deficient in fibre, but she says the biggest clue will often be your bowel movements. “A lack of fibre can affect different people in different ways, but suffering from constipation can be a major indicator that you are not getting enough.”
It’s not all about toilet habits though. “Even if you’re not experiencing any symptoms, it’s worth thinking about upping your fibre intakes,” Benelam adds, “as we know that fibre is really important for our long-term health.”
What exactly is fibre?
Dietary fibres are found in the indigestible parts of plants, such as the leaves, stems and roots. “Fibre is basically carbohydrates that are found in plant-based foods, like fruit, vegetables, pulses and grains,” explains Dr Naveen Puri, lead physician at Bupa Health Clinics.
Puri explains that fibre is unique because it stays in your digestive tract for nearly the entire digestive process. “Fibre isn’t broken down and absorbed in your small bowel like other types of food, but passes undigested into your large bowel. In this way, it helps to keep your digestive system in good working order.”
Some key examples of high-fibre foods
It’s often referred to as two different types – soluble and insoluble. “Soluble fibre is generally thought to have more effect in your small bowel, and insoluble fibre in your large bowel,” Puri continues.
“However, many scientific organisations argue that this picture is no longer clear-cut and, as a result, these terms are being phased out. You may still see these terms being used, but what’s really important to remember is to eat a variety of different fibre-containing foods.”
Why is fibre important for health?
Experts say fibre is responsible for keeping us full throughout the day, keeping our digestion regular, and even protecting us from some major health issues down the line. It’s also very important for general gut health and microbiome, which supports multiple functions throughout the body and brain.
“Fibre has lots of important roles in our body, including keeping our bowels regular and our microbiome healthy, reducing the amount of saturated fat we absorb from our diet, regulating our blood sugars and keeping us feeling full after meals,” says dietitian Sophie Medlin.
She explains that a high-fibre diet is linked with a reduced chance of developing many common problems such as diverticular disease and irritable bowel syndrome, heart disease, diabetes and even weight problems.
As well as protecting your health, it can also make going to the toilet more comfortable too. “Fibre bulks up stools, makes them softer and easier to pass, moving waste through the digestive tract more quickly,” says Puri.
How can I eat more fibre?
Here, experts share some simple strategies for boosting your fibre intake.
1. Prioritise breakfast
“Kick off the day with a high-fibre breakfast like porridge, Shredded Wheat or whole-wheat cereals,” advises Puri.
Not only will this set you on track to hitting your nutrition goals, but it will help keep you full until lunchtime.
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2. Snack on fruit
Getting your five-a-day is a great way to keep on top of your fibre intake. “Replace unhealthy snacks with fresh fruit and veg, oatcakes or unsalted seeds and nuts,” suggests Puri.
3. Switch to brown versions
As a general rule, white carbs are lower in fibre than their brown or wholemeal alternatives.
“For example, wholemeal or granary bread typically has higher fibre than white bread,” notes Puri. “Similarly, brown rice and pasta will normally be higher in fibre than the white alternatives, so consider making the swap next time you’re at the supermarket.”
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4. Leave the skins on your spuds
If you’re cooking potatoes, Puri says leaving their skins on will increase the fibre content on your plate. Simply give them a scrub before cooking.
5. Sprinkle some seeds
“Seeds are high in fibre, and you can sprinkle them onto soups, salads, breakfasts and avocado,” says Medlin, who adds that they give a delicious nutty crunch to dishes too.
6. Pulse it out
In recent years, there’s been a general shift towards having more meat-free days, both for environmental and health reasons – and beans and pulses are a great way to bulk out plant-based meals.
“Pulses like beans, chickpeas and lentils are good fibre providers. You could try using these instead of meat in dishes like stews or curries,” says Benelam.
Bottom line? Many of us need to eat more fibre and have fewer added sugars in our diet, so prioritising wholefoods over processed convenience foods is a good aim. If you’re struggling to follow a high-fibre diet or concerned you’re not getting enough, speak to your doctor or a pharmacist.
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