How Fiber Can Help You Lose Weight

Fiber is an essential nutrient that plays a crucial role in maintaining good health. It is well known for its ability to promote digestive health, regulate blood sugar levels, and reduce the risk of heart disease and other chronic illnesses. But, did you know that fiber can also be an effective tool for weight loss? In this article, we will explore how taking a fiber supplement can help you lose weight and provide some tips for incorporating fiber into your diet. 

What is Fiber? 

foods high in fiber


Before we dive into the benefits of fiber supplements for weight loss, it's important to understand what fiber is and how it works in the body. Fiber is a type of carbohydrate that is found in plant-based foods such as fruits, vegetables, whole grains, and legumes. Unlike other types of carbohydrates, fiber cannot be digested by the body, so it passes through the digestive system mostly intact. 

There are two main types of fiber: soluble fiber and insoluble fiber. Soluble fiber dissolves in water and forms a gel-like coating in the digestive system. It can slow digestion, moderate absorption of glucose into the bloodstream, and improve the overall health of your gut and digestive system. Insoluble fiber does not dissolve in water and can help promote regular bowel movements by adding bulk to your stool.  

How A Fiber Supplement Can Help You Lose Weight

The primary way fiber helps you lose weight is by increasing your satiety - the feeling of fullness. Consuming high fiber foods can leave you feeling fuller for longer.

Maintaining a calorie deficit is one of the most effective and healthy ways to lose weight, that is: burning more calories than you consume each day. Increasing your satiety can help to decrease your appetite and increase feelings of fullness, helping to limit cravings and decrease the overall amount of food you feel like consuming. 

Additionally, soluble fiber supplements, such as beta-glucan in particular, can help to regulate blood sugar levels.  This can help to reduce craving for foods high in sugar and fat that often contribute to weight gain.   

Finally, certain fiber supplements can act as a prebiotic and increase the overall health of the bacteria in your gut known as your gut microbiome.  A healthy gut microbiome has been linked to improved weight management, as well as numerous other health benefits such as improved digestion and immunity.  

Why beta-glucan is the best fiber supplement for losing weight? 

Beta-glucan is a type of soluble fiber extracted from barley and oats.  Beta-glucan specifically has been proven to help increase satiety, regulate blood glucose levels, and can help you to lose weight.  Brands such as Cerabeta produce a single ingredient beta-glucan supplement making it easy to incorporate into your diet. It is flavourless so you can add it to anything. Always seek out brands that have simple ingredient decks and are free from sugar, flavouring, and other harmful additives. 

 measuring tape to indicate weight loss

Tips for success: 

  • Start slowly. Increase fiber intake gradually to allow your body to adapt. Increasing fiber intake too quickly can cause bloating and gas. 
  • Keep to a routine. Take your supplements regularly to ensure maximum results. 
  • When increasing fiber intake, always be sure to increase water intake as well.  This helps to prevent constipation, promote regular bowel movements, and can help increase satiety as well. 
  • Try eating more high fibre foods in general.  Foods high in fiber tend to be lower in calorie density, meaning they provide fewer calories per gram. By choosing high-fiber foods such as fruits, vegetables, whole grains, and legumes, you can reduce your overall calorie intake while still feeling full and satisfied.  


While taking a fiber supplement won’t magically make you lose weight, it can help to reduce the number of calories you are consuming each day.  If you are able to maintain a calorie deficit for an extended period of time, you should see a decrease in overall weight.  As a bonus, you’ll also benefit from improved blood sugar control, decreased cholesterol, and improved gut health and digestion that comes with increased fiber intake.