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Home arrow Health arrow Gut Health arrow The 8 Best Fiber Supplements for Weight Loss [2024 Update]

The 8 Best Fiber Supplements for Weight Loss [2024 Update]

HR_author_photo_Edibel
Written by Edibel Quintero, RD
HR_author_photo_Rosmy
Fact checked by Rosmy Barrios, MD
Last update: January 3, 2024
7 min read 1342 Views 0 Reviews
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Are you looking for something to boost your weight loss progress? Discover the 8 best fiber supplements on the market that can aid your journey and help you reach your health goals.

best fiber supplement for weight loss

How do we vet brands and products? Learn more.

Dietary fiber is an essential macronutrient in every diet. It keeps the digestive system strong and functioning at its best, encouraging healthy gut flora and promoting regular bowel movements by bulking the stool.

Besides supporting your digestive health, fiber-rich foods fill you up, aiding weight loss and weight management.

Taking fiber supplements can help people get the recommended daily fiber intake since many people don’t eat enough fiber in their diet.

Keep reading to discover 8 of the best fiber supplements to try for weight loss.

#1 Best overall star
colonbroom logo
4.7
stars
  • Promotes good gut health;
  • Helps with constipation;
  • May help to feel more satiated;
  • Helps regulate blood sugar levels

 

Visit Garden of Life
Visit ColonBroom
#2
Garden of Life logo
4.3
stars
  • Helps with appetite control;
  • Helps build a healthy microbiome;
  • Eases the symptoms of irritable bowel syndrome (IBS)
Visit Garden of Life
Visit Garden of Life
#3
Benefiber logo
3.9
stars
  • Nourishes the good microflora;
  • Boosts daily fiber intake;
  • Reduces cholesterol levels
Visit Garden of Life
Visit Benefiber

8 Best Fiber Supplements for Weight Loss

With so many good fiber supplements available, where do you begin?

Let’s dive into an overview of 8 fiber supplements to aid your weight loss journey and promote optimal health. You’ll get to learn about each product’s key features, pros, and cons that will help you make an informed decision on the fiber supplement that could best match your needs.

#1 ColonBroom – Best overall

colonbroom logo
Our rating:
4.7
stars
  • Promotes good gut health and a healthy digestive system
  • Facilitates bowel movements
  • May help to feel more satiated
  • Helps regulate blood sugar levels
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ColonBroom is a dietary fiber supplement containing psyllium husk – a natural form of soluble fiber from the Plantago ovata plant. Psyllium husk is excellent for treating constipation, lowering bad cholesterol levels, and improving blood sugar control.

This powder supplement is marketed as an effective product for gut health as it fights bloating and constipation, cleanses the gut, and promotes regular visits to the bathroom.

Although ColonBroom encourages bowel movements, it is not a laxative. It is also organic and free from sugar and artificial ingredients. As it’s non-addictive, you can safely incorporate ColonBroom into your diet.

Furthermore, if you practice intermittent fasting to shed excess pounds, ColonBroom will not break a fast. You can use it in the fasting window without hindering your progress. As the fiber content fills you up and suppresses cravings, it may stop hunger pangs when fasting.

Pros
  • checkmark
    Acts as a gut and colon cleanser
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    Promotes a bowel movement within 24–72 hours
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    Contains natural soluble fiber
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    Zero sugar
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    Vegan-friendly and gluten-free
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    Fast-friendly
Cons
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    Higher price point
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    May cause bloating as your body adjusts to the extra fiber

#2 Garden of Life Dr. Formulated Organic Fiber – Best for hunger control

Garden of Life logo
Our rating:
4.3
stars
  • Curbs appetite
  • Supports healthy digestion
  • Eases occasional constipation
Learn more

Garden of Life is another fiber supplement that is designed to support a healthy digestive system while also curbing appetite and promoting weight loss along the way. It contains a total of nine grams of fiber per serving, which is enough to maintain regular bowel movements and soften the stool.

The supplement is made from only plant-based ingredients, including five organic superfoods: acacia, oranges, baobab, apples, and cranberries. 

Acacia fiber, often called acacia gum, is a well-known soluble prebiotic fiber that promotes healthy waste elimination and acts as an appetite suppressant, giving a greater feeling of satiety and helping reduce calorie intake. It can also help with IBS (irritable bowel syndrome).

Garden of Life is completely organic and available in an unflavored or citrus-flavored form. It can be consumed by dissolving one tablespoon of the powder in water daily. This will be enough to feed the gut bacteria with high-quality prebiotics and ensure the growth of a healthy microbiome.

Pros
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    Contains all-organic and vegan ingredients
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    Non-GMO
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    Gluten-free
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    Can be flavored or unflavored
Cons
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    On the more expensive side considering the price per serving
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    The citric flavor may seem too strong for some
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    Takes time to dissolve in water completely

#3 Benefiber – Best for gut health

Benefiber logo
Our rating:
3.9
stars
  • Nourishes the good microflora in the digestive system
  • Boosts daily fiber intake
  • Supports gut health
  • Good for the gut bacteria
  • Promotes healthy digestion
Learn More

Benefiber is a prebiotic supplement created to improve overall digestive health. The human body cannot digest prebiotic fiber. Instead, it travels through the body, nourishing and feeding the friendly gut bacteria to keep your digestive system healthy and happy.

Prebiotic supplements create a positive environment for weight loss. Although Benefiber is not exactly designed for weight loss purposes, it contains a soluble fiber called wheat dextrin. Studies show that wheat dextrin can decrease body weight and reduce cholesterol levels.

Benefiber is often compared with Miralax, another popular laxative supplement that is primarily geared at alleviating constipation and promoting regular bowel movements rather than weight management.

Pros
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    Contains plant-based prebiotic fiber
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    Dissolves easily in food and drinks
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    No taste, which some people might prefer
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    Sugar-free
Cons
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    Wheat dextrin may cause bloating and gas in some people
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    Requires 3 servings per day
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    It meets the FDA requirements for gluten-free foods, but it is not entirely gluten-free

#4 Metamucil – Best for appetite control

metamucil logo
Our rating:
3.6
stars
  • Promotes digestive health
  • Supports heart health
  • May lower cholesterol
  • Boosts daily fiber needs
Learn More

Metamucil is another fiber supplement designed to increase your daily fiber consumption to maintain gastrointestinal health. The makers of Metamucil claim that this product promotes appetite control and healthy blood sugar levels – two benefits that may help you lose weight.

Like ColonBroom, Metamucil contains psyllium husk, which is great for your digestive tract. It forms a gel-like mass that helps you feel full for longer. However, Metamucil also contains artificial sweeteners and flavors that are not ideal for your overall health.

Pros
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    May lower cholesterol
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    Supports appetite control
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    Available in several forms, including fiber powder, fiber gummies, capsules
Cons
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    Contains artificial ingredients
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    May cause adverse effects, including bloating, diarrhea, and gas
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    Psyllium is well-tolerated by most people, but it may cause an allergic reaction in some

#5 FiberCon – Best for improving bowel movements

FiberCon logo
Our rating:
3.8
stars
  • Helps maintain normal bowel function
  • Relieves constipation
  • Focuses on easier bowel movement with insoluble fiber
Learn More

FiberCon is a bulk-forming fiber therapy, also known as a bulk-forming laxative, that provides occasional constipation relief. It is purposefully designed using insoluble fibers to get things moving again quickly. The active ingredient in FiberCon is calcium polycarbophil.

It adds bulk and moisture to stool for easier bowel evacuation. Insoluble fiber is not the best type for losing weight, as it primarily cleanses the colon and helps flush waste from the system. Bulk-forming laxatives may cause temporary weight loss results due to water loss.

Pros
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    Promotes a bowel movement within 12–72 hours
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    Reduces bloating and gas
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    Suitable for a low-carb diet
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    Convenient capulet form
Cons
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    Requires multiple daily doses
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    It should not be used for more than 7 days
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    Doesn’t directly target weight loss

#6 Unbloat – Best for bloating

Unbloat logo
Our rating:
4.0
stars
  • Promotes regularity
  • Reducing bloating promotes a trimmer waistline
  • Contains probiotics
Learn More

As the name suggests, Unbloat is a prebiotic fiber supplement created to beat the discomfort of bloating. Digestive enzymes encourage digestion, helping you fully digest the food you consume. With greater digestion, you can expect healthier and more regular bathroom habits.

Bloating can make you slightly heavier, and reducing bloating may help you shed the odd pound. However, reducing your bloated belly will not lead to legitimate, long-term weight loss.

That doesn’t mean you shouldn’t try this fiber supplement. Removing the bloat will make you feel more comfortable in your body. It will mitigate discomfort so you can continue with your weight loss journey. 

Pros
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    Convenient pill form
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    Can be taken long-term
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    Claims to improve digestion within 6–8 weeks
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    Vegan-friendly
Cons
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    It fights bloating but will not aid in fat loss

#7 Bellway Fiber – Best for regulating digestion

bellway logo
Our rating:
4.1
stars
  • Promotes regular bowel function
  • Regulates digestion
Learn More

Bellway is a natural fiber supplement containing psyllium husk powder. It promotes a happy gut as it gently travels through the system, clearing out waste and toxins along the way. In doing so, it can reduce bloating and other digestive issues and can contribute to a balanced weight.

As psyllium absorbs fluid in the body, it can promote feeling full. In turn, taking this supplement may help you lose weight by reducing your serving size and overall caloric intake. When you eat fewer calories, you can create a healthy calorie deficit.

Pros
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    Effective against constipation, diarrhea, and other digestive troubles
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    Keeps your heart healthy
Cons
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    May cause minor bloating in the beginning
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    The fiber powder will not blend properly if the water is too cold
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    Not suitable for people who have difficulty swallowing

#8 Sunfiber – Best for mitigating diarrhea

SunFiber Logo
Our rating:
3.7
stars
  • Good for occasional constipation and diarrhea
  • It has a satiety effect that may promote weight loss
Learn More

Sunfiber is a galactomannan-based soluble fiber known as partially hydrolyzed guar gum (PHGG).

This soluble fiber can help food move smoothly through your gut to mitigate constipation and ease diarrhea, promoting greater digestive balance. Meanwhile, it feeds the good bacteria in the gastrointestinal system to foster a healthy gut flora, an excellent benefit for overall wellness.

Unlike the fiber found in many other fiber supplements, Sunfiber encourages regularity without causing adverse side effects, such as excess gas and bloating. Furthermore, Sunfiber slows digestion and helps you feel full and satisfied for longer, which could aid in weight loss.

Pros
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    No taste, so it doesn’t impact the flavor of food and drinks
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    Gluten-free
Cons
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    Won’t necessarily target your weight

How We Tested

In order to complete the list with the best fiber supplements on the market, we rated products based on several factors, including overall quality, effectiveness, pricing, and brand reputation.

Below, you can gain an understanding of what we look out for when giving recommendations for the best fiber supplements for weight loss.

Quality

A high-quality supplement is important because you’re incorporating it into your daily diet. The best dietary supplements contain the ingredients necessary to deliver results with every serving while optimizing your overall health and wellness.

Those with natural ingredients and without sugar and artificial sweeteners are the healthier options. For example, ColonBroom contains psyllium husk – a natural source of fiber that offers various health benefits. It doesn’t have any harmful ingredients that reduce quality.

Effectiveness

There’s really no use in taking a fiber supplement if it doesn’t work.

Fiber supplements may work differently for everyone, but most fiber supplements should give you enough fiber per serving to help reach your daily recommendations. With the correct dose of fiber, a fiber supplement will encourage bowel movement, appetite control, and weight loss progress.

Price

Price is often the determining factor when choosing between fiber supplements. If the cost is too high, the product becomes unsustainable. It’s best to find a supplement that aligns with your expectations and your budget, so you can continue using it in the long term if needed. 

Brand reputation

Rather than buying from an unknown company, it’s better to research a brand’s reputation. An insight into the brand can help you conclude if its mission matches your health goals. You can find relevant information through the company websites and reviews.

Best for Weight Loss in the Fiber Supplement Category

Comparison Winner: ColonBroom
4.7
stars
4.3
stars
3.9
stars
3.6
stars
3.8
stars
4.0
stars
4.1
stars
3.7
stars
Brand
ColonBroom
Garden of Life Dr. Formulated Organic Fiber
Benefiber
Metamucil
FiberCon
Unbloat
Bellway
Sunfiber
Pros

Suppresses appetite and cravings

Improves sleep quality

Vegan and fast-friendly

Organic and zero-sugar

Contains all-organic and vegan ingredients

Non-GMO

Gluten-free

Can be flavored or unflavored

Supports a happy gut by nourishing the gut flora

Dissolves easily 

Tasteless and sugar-free

Promotes regular bowel habits

Supports appetite control

May lower cholesterol

Various supplement forms available, including fiber gummies

Provides constipation relief 

Supports regular bowel function

Decreases gas and bloating

Capulet form for ease of use

Provides relief for bloating and stomach discomfort 

Promotes regular bowel movements 

Easy pill form 

Suitable for long-term use 

Encourages regular bowel movements

Cleanses the digestive system

Helps fight constipation, diarrhea, and other digestive woes

Effective for constipation and diarrhea relief

May promote weight loss by decreasing appetite

Gluten-free

No taste, so you can mix it with almost anything

Cons

Slightly expensive

May take time to adjust to the fiber intake, causing bloating

On the more expensive side considering the price per serving

The citric flavor may seem too strong for some

Takes time to dissolve in water completely

Wheat dextrin may cause bloating and gas

Requires several servings (3 doses per day)

Not suitable for people with gluten intolerance or celiac disease

May cause adverse effects, resulting in digestive issues such as bloating

Contains some artificial ingredients

Requires several doses per day 

Not suitable for long-term use 

Not designed for weight loss

Not designed for weight loss 

May take a few weeks to notice results 

May cause bloating at first

The powder doesn’t blend as easily as other fiber powders

Not suitable if you have trouble swallowing

Not specifically designed for weight control 

Some people prefer a flavored supplement

A Word From a Nutritionist

We all need dietary fiber to stay healthy.

Fiber consumption benefits many other aspects of human health. It can help regulate blood sugar levels, reduce cholesterol levels, improve insulin sensitivity, and aid diabetes management.

Adequate fiber intake can also aid weight management because it keeps you feeling full, which can help you refrain from binge eating and giving in to sugar cravings. If you are following the keto diet to lose weight, keto and fiber are essential to prevent keto diarrhea and constipation.

You should aim to eat lots of fiber sources from high-fiber foods, like barley, beans, lentils, nuts, seeds, and vegetables, but you can also take a fiber supplement. Fiber supplements are a great way to boost your fiber intake if you are not getting enough fiber from your diet alone.

The recommended daily fiber is 21–25 grams for women and 30–38 grams for men.

Dietary supplements should not replace fiber sources from the diet, but they can help balance things out. Keep in mind that the best fiber supplements for weight loss contain healthy ingredients and are free from added sugar and artificial sweeteners.

Conclusion

We’ve covered eight fiber supplements to consider trying as part of your weight loss plan. These supplements provide a good amount of fiber to boost your health and help you reach your body and wellness goals.

If you’re still unsure what to choose, ColonBroom, Garden of Life Dr. Formulated Organic Fiber, and Benefiber are our top three recommendations and a good place to start. They will help you reduce cravings while also eliminating discomfort in the digestive system and increasing energy levels.

Remember that a sudden increase in the amount of fiber you consume can cause digestive issues, such as bloating and gas. It’s better to start slow and gradually build up your intake to healthy levels.

Written by Edibel Quintero, RD
Edibel Quintero is a medical doctor who graduated in 2013 from the University of Zulia and has been working in her profession since then. She specializes in obesity and nutrition, physical rehabilitation, sports massage and post-operative rehabilitation. Edibel’s goal is to help people live healthier lives by educating them about food, exercise, mental wellness and other lifestyle choices that can improve their quality of life.
The article was fact checked by Rosmy Barrios, MD
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