Getting
Started Guides

Step-by-step guides to help you get started with your new device

Find out more

Shop

For healthcare professionals
FoodMarble Health For use by physicians
  • 13 September 2021
  • Est. reading time: 3 minutes
  • Soluble Vs Insoluble Fibre

  • Dietary fibre is a widely used term. It’s commonly associated with many health benefits, but do we know what fibre is exactly? Well, “dietary fibre” is an umbrella term for any undigestible carbohydrate that reaches the large intestine. Here it will be fully or partly broken down into gases (primarily hydrogen gas) and short-chain fatty acids (SCFAs) by the bacteria in our gut. Sometimes you hear the terms “soluble” and “insoluble” fibre. Have you ever wondered what the difference is?

  • Est. reading time: 3 minutes
  • Soluble Vs Insoluble Fibre

  • Dietary fibre is a widely used term. It’s commonly associated with many health benefits, but do we know what fibre is exactly? Well, “dietary fibre” is an umbrella term for any undigestible carbohydrate that reaches the large intestine. Here it will be fully or partly broken down into gases (primarily hydrogen gas) and short-chain fatty acids (SCFAs) by the bacteria in our gut. Sometimes you hear the terms “soluble” and “insoluble” fibre. Have you ever wondered what the difference is?

Soluble fibre

This type of fibre retains water. It forms a gel-like material during digestion. It tends to slow down digestion and helps with the absorption of nutrients.

Some key health benefits of soluble fibre include:

  • Helps eliminate cholesterol from the body. It lowers LDL cholesterol (the bad one), which in the long run can protect against heart disease
  • Helps to stabilise blood sugar levels as it slows down the digestion of foods, including carbohydrates. This helps prevent spikes in blood sugar levels
  • Acts as food for our gut microbes, promoting the growth of good bacteria
  • Weight management. Because it slows down the digestion of food, it can leave us feeling fuller for longer

 

Foods naturally high in soluble fibre

  • Vegetables: broccoli, brussels sprouts, avocado and peas
  • Fruits: Apples, strawberries
  • Legumes: lentils, black beans
  • Grains: flaxseed, barley, chia and oats

 

Insoluble fibre

This type of fibre doesn’t retain any water. It remains fairly intact as it travels through your digestive system. It tends to speed up the passage of food through the stomach and intestines. It also has a bulking effect by increasing the size of the stool.

 

Some key health benefits of insoluble fibre include:

  • Helps with the passage of food. This reduces the incidence of constipation
  • Helps reduce the risk of haemorrhoids (piles)
  • Acts as food for our gut microbes, promoting the growth of good bacteria
  • It can help reduce the incidence of diverticulitis (inflammation in the intestines)
  • It can keep us feeling fuller for longer

 

Foods naturally high in insoluble fibre:

  • Wholegrain foods: wheat bran, brown rice and couscous
  • Cereals: bran flakes
  • Root vegetables: carrots, parsnips and potatoes
  • Vegetables: celery, cucumber, broccoli, brussels sprouts and courgette
  • Fruits: bananas, orange, pear and blackberries
  • Legumes: beans, pulses and lentils
  • Nuts: almonds, brazil nuts

 

So, fill up on fibre!

However, it’s important to always be mindful of portion sizes. This is especially important if you have a sensitive gut. If you’re thinking of increasing your fibre intake, start small and track how you’re feeling as you introduce different types of fibre. Many fibre-rich fruits and vegetables contain FODMAPs. If you’re sensitive to FODMAPs, use your FoodMarble AIRE app to check the FODMAP content of different foods. Many plant foods contain both soluble and insoluble fibre to varying degrees. To receive the greatest health benefits, try eating a wide variety of fibre-containing plant-foods.

Are you looking to improve your gut health?

FoodMarbles FODMAP Testing Kit is a great way to find the foods that are right for your body and reduce symptoms.  If you are looking to find the root cause of your digestive issues check out our AIRE device and FODMAP Testing Kit.

Claire Shortt

PhD Microbiologist

Discover More

Search recipes, articles, stories:

FoodMarble Soluble Vs Insoluble Fibre - FoodMarble
×
Newsletter

SIGN UP FOR 10% OFF

Sign up for our monthly newsletter and get 10% off.

Cart
There are no products in the cart!
0