18 Fiber Supplements for Low-Carb Diets You Can Trust

Discover the best fiber supplement for low-carb diet enthusiasts to boost digestion and energy effortlessly. Elevate your health with our top picks.
BrandMy RatingPrice
Vitafusion
Best Value Option
9.0/10
Yum-V's
Best for Gut Health
8.8/10
Benefiber
Best for Sugar-Free Diets
9.4/10
It's Just!
Best for Low-Carb Support
8.6/10
Now Foods
9.2/10

Best Fiber Supplement for Low-Carb Diet

Embarking on a low-carb journey often means navigating a sea of fiber options, each promising digestive harmony yet varying in effectiveness. Finding the perfect fiber supplement can feel like hunting for a needle in a haystack, but worry not—here's your quick guide to the best low-carb fiber supplements that seamlessly fit into your health-conscious lifestyle. Dive in and discover the fibers that keep you feeling full, satisfied, and on track without compromising your carb-conscious goals.

Best Value Option: Vitafusion

Vitafusion Fiber Well Sugar Free Fiber Supplement, Peach, Strawberry And Blackberry Flavored Supplements, 90 Count
Highlights
Delicious fruity flavors
Sugar-free and low-calorie
Easy to chew and take

As the "Best Value Option," Vitafusion Fiber Well stands out with 90 generous servings of sugar-free gummies that deliver delicious fruity flavors—peach, strawberry, and blackberry—that make fiber intake feel like a treat rather than a chore.

The added prebiotic fiber supports digestive health and regularity, all while keeping it low-calorie and free from gluten and synthetic dyes.

Though the gummies have a slightly rubbery texture and offer a smaller fiber dose per serving, the overall convenience, taste, and quantity make it an excellent choice for anyone on a low-carb diet seeking affordable, enjoyable fiber support.

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Price history for Vitafusion on Amazon

Best for Gut Health: YUM-V'S

YUM-V'S Prebiotic Fiber Zero Gummies, Keto Friendly Sugar Free Supplement, 4 g Fiber for Digestive Support, Natural Berry Flavor Chewables for Women & Men, 60 Count
Highlights
Sugar-free with great flavor
Low carbs per serving
Digestive support

These prebiotic gummies are bursting with flavor and deliver 4g of soluble fiber per serving, making them a delicious way to support your gut health.

They’re completely sugar-free and come in a mouthwatering berry flavor that even the pickiest eaters will enjoy.

Plus, they fit perfectly into a low-carb, clean eating routine without sacrificing taste.

While the gummy texture isn't for everyone, their high-quality ingredients, including non-GMO and gluten-free components, make them a trustworthy option for digestive support.

Overall, a tasty, gut-friendly choice!

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Price history for YUM-V'S  
on Amazon

Best for Sugar-Free Diets: Benefiber

Benefiber Daily Prebiotic Fiber Supplement Powder for Digestive Health, Daily Fiber Powder, Unflavored - 62 Servings (8.7 Ounces)
Highlights
Easy to mix
Taste-free, neutral
Supports digestion

This sugar-free, unflavored powder is a fantastic choice for anyone on a low-carb, keto, or sugar-restricted diet. Supporting digestion and relieving constipation, it can be easily mixed into your favorite foods or drinks without altering the taste, making it super versatile.

Its low-calorie profile and natural fibers make it an ideal addition to your daily routine.

While it can get a bit clumpy in almond milk and has limited flavor options, the overall convenience and effectiveness earn it a high spot on our list.

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Price history for Benefiber on Amazon

Best for Low-Carb Support: It's Just!

It's Just! - Psyllium Husk Powder, Easy Mixing Dietary Fiber, Cleanse Your Digestive System, Finely Ground Powder, Ideal for Keto Baking, Non-GMO (Unflavored, 10oz (Pack of 1))
Highlights
High soluble & insoluble fiber
Good for keto baking
Affordable price

This finely ground psyllium husk powder truly shines as the best for low-carb support.

Its naturally sourced, hand-selected husk provides about 70% soluble fiber, making it a powerhouse for digestive health.

Plus, it acts as a fantastic binder in keto baking, mimicking traditional bread textures without kicking carbs up a notch.

While it has a somewhat unpleasant taste and doesn’t fully dissolve, vigorous mixing helps mitigate these issues.

Packaged in small batches in California, it guarantees freshness and quality—ideal for your low-carb lifestyle.

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Price history for It's Just! on Amazon

Now Foods Psyllium Husk

NOW Foods Supplements, Psyllium Husk Caps 500 mg, Non-GMO Project Verified, Natural Soluble Fiber, Intestinal Health*, 500 Veg Capsules
Highlights
Supports digestive health
Convenient capsule form
Non-GMO and Vegan

The NOW Psyllium Husk capsules support digestive health with a reliable bulking action that helps maintain regularity and overall gut wellness.

The capsules are a convenient way to boost your fiber intake without the gritty texture of powders—perfect for low-carb lifestyles.

Plus, they're non-GMO, vegan, and gluten-free, aligning with clean eating standards.

While you might need to take multiple pills daily and watch for potential bloating, this supplement offers a trusted, quality-certified option for anyone seeking easy, natural fiber support on a low-carb diet.

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Price history for Now Foods Psyllium Husk on Amazon

Bellway Super Fiber

Bellway Super Fiber Powder + Fruit, Sugar Free Organic Psyllium Husk Powder Fiber Supplement for Regularity, Bloating Relief & Gut Health, Non-GMO, Plant-Based, Pineapple Passion Fruit (50 Servings)
Highlights
Effective for digestion
Natural fruit flavors
Supports gut health

Bellway’s Super Fiber + Fruit is your go-to for gentle yet effective gut support.

With organic psyllium husk as its star ingredient, it nourishes your microbiome while keeping you feeling light and regular—say goodbye to bloating and discomfort!

Its real fruit flavor makes each scoop surprisingly tasty, and it’s free from artificial additives or sweeteners.

While it can be a tad clumpy when mixed and might cause some nausea if overdone, these are minor bumps in an otherwise stellar supplement.

Perfect for those on a low-carb diet seeking a natural, delicious way to boost fiber intake.

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Price history for Bellway Super Fiber on Amazon

NOW Foods Psyllium Husk Caps Fiber Supplement for Low-Carb Diet

NOW Foods Supplements, Psyllium Husk Caps 500 mg, Non-GMO Project Verified, Natural Soluble Fiber, Intestinal Health*, 200 Veg Capsules
Highlights
Supports intestinal health
Natural soluble fiber
Non-GMO and vegan

NOW Psyllium Husk capsules are a natural, convenient way to boost your fiber intake while supporting intestinal health and maintaining regularity.

The capsules contain soluble fiber that can swell up to 50 times its volume, helping to keep your digestion smooth and consistent — a real lifesaver on low-carb diets.

Plus, they’re Non-GMO, vegan, and gluten-free, so they fit various dietary preferences.

The only minor hiccups?

You need to take multiple capsules daily and ensure you drink plenty of water.

Overall, a reliable, trusted option to keep your gut happy without breaking your keto stride.

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Price history for NOW Foods Psyllium Husk Caps on Amazon

Metamucil

Metamucil 3-in-1 Fiber Capsules, Daily Psyllium Husk Fiber Supplement, Fiber Capsules for Digestive Health, Plant-Based Psyllium Husk Fiber Capsules, #1 Doctor Recommended Fiber Brand, 300ct Capsules
Highlights
Supports digestive health
Plant-based psyllium fiber
Convenient capsule form

Metamucil's Daily Fiber Capsules deliver plant-based psyllium husk effortlessly, supporting your digestive health and keeping you regular.

Their two-ingredient formula makes it simple and pure, perfect for those of us on a low-carb diet.

Plus, with a proven track record as the #1 doctor-recommended fiber brand, it’s reliable and trusted.

While it does require water and might cause some bloating if you’re not used to it, its convenience and cholesterol-lowering benefits make it a top pick.

For a quick, effective fiber boost, Metamucil truly feels like lighter!

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Price history for Metamucil on Amazon

MiraLAX Gummies

MiraFIBER Gummies, From The Gut Experts at MiraLAX, 8g of Daily Prebiotic Fiber with B Vitamins to Support Digestive Health and Metabolism, Fruit Flavored Fiber Gummies, 72 Count
Highlights
Great taste, easy to chew
Supports balanced gut
Includes B vitamins

MiraFIBER Gummies deliver a delicious fruit flavor that makes sticking to your low-carb regimen feel like a treat, not a chore.

Each serving packs 8g of fiber, more than a quarter of your daily needs in just 4 gummies, making digestion smoother and more regular.

Plus, with added B vitamins, it helps boost your metabolism—perfect for active lifestyles.

They support a healthy gut by nourishing good bacteria, though some users may experience minor gassiness or find the texture a bit heavy.

Still, their convenience and great taste make them a standout choice.

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Price history for MiraLAX Gummies on Amazon

GOBIOTIX Fiber Supplement for Low-Carb Diet

GOBIOTIX Prebiotic Fiber Supplement Powder for Digestive Health, Soluble Fiber for Gut Health, Gluten & Sugar Free, Keto, Vegan, 35 Servings (1 Pack)
Highlights
Tasteless and easy to mix
Supports gut health naturally
No artificial sugars

It’s completely tasteless and super easy to blend into your favorite drinks, making daily supplementation hassle-free.

The organic, plant-based ingredients support gut health naturally, helping to ease bloating and promote a balanced digestive system — all without artificial sugars or fillers.

While it may cause some bloating for sensitive folks and isn't the strongest option for constipation relief, its clean profile and compatibility with low-carb, keto, and paleo diets make it a top contender.

Plus, knowing it’s produced in a GMP-certified facility in the USA gives us added peace of mind.

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Price history for GOBIOTIX on Amazon

Vitamatic Fiber Gummies

Vitamatic 2 Pack Prebiotic Fiber Gummies for Adults - 7G Fiber Extra Strength - Zero Sugar Added - 60 Pectin Based Gummies - Digestive Health & Regularity Support, (Total 120 Count)
Highlights
Delicious natural flavors
Supports regularity
Plant-based fiber

The natural flavors of blackberry, peach, and strawberry make taking your daily fiber a tasty treat rather than a chore.

Made with high-quality plant-based FOS from beet, these gummies support regularity without artificial additives or common allergens.

While you’ll need to take multiple gummies to meet your fiber needs— which can get a bit sticky and pricey—they deliver a reliable, enjoyable experience.

If you're after a trusted, natural fiber supplement that aligns well with a low-carb lifestyle, these gummies are an excellent choice to keep your gut happy and your snack game on point.

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Price history for Vitamatic Fiber Gummies on Amazon

Metamucil

Metamucil 4 in 1 Daily Fiber Supplement Powder, Fiber Powder for Digestive Health and Regularity*, Sugar-Free, Orange, Naturally Sourced Psyllium Fiber, 180 teaspoons
Highlights
Supports Digestive Health
Sugar-Free and Low-Carb
Controls Appetite

Metamucil's sugar-free, psyllium husk-based formula makes it a top choice for low-carb diets, supporting digestive health while helping you feel lighter and more energetic.

Its ability to control appetite helps curb those pesky midday cravings, making it easier to stick with your goals.

Plus, regular use can support healthy blood sugar levels and lower cholesterol, adding extra benefits to your wellness routine.

Keep in mind, the taste isn’t guaranteed to be perfectly pleasant, and consistency is key.

Overall, a reliable, plant-based fiber for anyone serious about balancing digestion and low-carb living.

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Price history for Metamucil on Amazon

Amazon Basics Fiber Gummy Fiber Supplement for Low-Carb Diet

Amazon Basics (previously Solimo) Fiber 4g Gummy - Digestive Health, Supports Regularity, Orange, Lemon & Strawberry, 90 Gummies (2 per Serving)
Highlights
Good flavor and texture
Effective for regularity
Easy to take gummies

The Amazon Brand - Solimo Fiber Gummies deliver a delicious flavor and a pleasant texture, making regularity feel like a treat rather than a chore.

The gummies are super easy to incorporate into your daily routine—no water required—and they effectively help support your digestive health.

However, keep in mind that the price has increased over time, and some users report minor side effects like gas or slight discoloration.

If you’re after a convenient, tasty fiber boost within a low-carb lifestyle, these gummies are definitely worth considering!

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Price history for Amazon Basics Fiber Gummy on Amazon

Metamucil Fiber Gummies

Metamucil Fiber Gummies for Adults, No Sugar Added Orange Flavor, 5g Prebiotic Plant Based Fiber Supplement Blend, 120 Count
Highlights
Great taste, no sugar
Effective for digestion
Easy to chew and swallow

These orange-flavored fiber gummies deliver a delicious, no-sugar added treat that makes your daily fiber intake feel like a treat rather than a chore.

Crafted by the trusted makers of Metamucil, they blend plant-based fibers that work seamlessly to support digestive health.

The prebiotic inulin keeps your gut happy by nourishing beneficial bacteria, while the soluble corn fiber promotes smoother digestion.

They’re easy to chew and pack a punch with 5g of fiber per serving.

Just be mindful—they might produce a bit of gas and stick around a bit longer than expected.

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Price history for Metamucil Fiber Gummies on Amazon

Metamucil

Metamucil Fiber Supplement, Unflavored Clear Mixing Powder, No Grit, No Sugar Added, Plant Based Prebiotic Fiber Blend for Daily Digestive Health, 75 teaspoons
Highlights
Unflavored, no grit
Dissolves easily
Supports gut health

Metamucil Clear Fiber Blend is a game-changer for those on low-carb diets who want to keep their gut happy without sacrificing convenience.

Its unflavored, no grit formula dissolves effortlessly into coffee, smoothies, or tea—making it super easy to incorporate into your daily routine.

Plus, with Fibersol helping to promote regularity and prebiotic inulin supporting good bacteria, it's like giving your gut a nourishing hug.

While it’s a bit pricier and needs warm water for dissolving, its smooth, clear mix makes it worth the extra effort.

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Price history for Metamucil on Amazon

Nextdia Gummies Fiber Supplement for Low-Carb Diet

Fiber Gummies for Adults, Sugar Free 10g Prebiotic Fiber Supplement with Digestive Enzymes, Probiotics & 100mg Betaine for Digestive & Gut Health and Regulate Bowel Movement, Vegan, Gelatin Free,120ct
Highlights
High fiber content (10g)
Tastes great, Blue raspberry
Organic, Vegan, Gluten-Free

Nextdia’s fiber gummies pack a powerful punch with 10g of organic, plant-based fiber per serving, making them a top contender for low-carb dieters.

The blueberry flavor is delicious and makes fiber intake feel like a treat, not a chore.

Plus, the added probiotics, enzymes, and betaine HCl support not just gut health but overall metabolism — a smart combo for those watching carbs.

The organic, vegan formula ensures gentle digestion without sacrificing flavor.

While the blue tongue and slight staining can be minor inconveniences, these gummies are a convenient, tasty way to boost your daily fiber goals.

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Price history for Nextdia Gummies on Amazon

Fiome Fiber Bite

Fiber Supplement - 5g Daily Fiber Bite - Supports Regularity, Digestion and Gut Health - All Natural Ingredients, Peanut Butter Cacao Flavor, 30 Servings
Highlights
All-natural ingredients
Supports gut health
Delicious taste

This fiber bites feature 5 grams of all-natural prebiotic fiber per serving, making it an easy and tasty way to reach your daily goals without fuss.

They not only support regularity—helping to keep you feeling lighter and less bloated—but also nourish your gut with a balanced mix of soluble and insoluble fibers.

What really sets them apart is the delicious, whole food flavor—a far cry from typical supplements—making it something you’ll actually enjoy.

While the price might be a bit steep for daily use, the clean ingredients and effective gut support make these bites a worthwhile choice for those on a low-carb diet seeking convenience and flavor.

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Price history for Fiome Fiber Bite on Amazon

Kirkland Fiber

Fiber Capsules Kirkland Therapy for Regularity/Fiber Supplement, 360 capsules - Compare to the Active Ingredient in Metamucil Capsules
Highlights
Effective digestion aid
Easier than powder mixes
Natural fiber source

Kirkland Signature's fiber supplement offers a natural, soluble fiber source that supports healthy digestion and keeps things moving smoothly on low-carb days.

Its bulk-forming properties help you stay regular without the hassle of powder mixes—simply take a capsule, and you're good to go.

While some might find it a bit tough to swallow and not particularly pleasant tasting, its effectiveness and ease of use outweigh these minor quirks.

Overall, it’s a reliable, straightforward choice for anyone needing a daily fiber boost without breaking their keto or low-carb routine.

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Price history for Kirkland Fiber on Amazon

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