18 Fiber Supplements for a Low-Carb Diet

Discover the best fiber supplement for low-carb diet that fuels your wellness journey with effective, easy-to-digest options tailored for keto thrives.
BrandMy RatingPrice
Amazon Basics
Most Wallet-Friendly
9.0/10
Now Foods
Best for Gut Health
9.2/10
Yum-V's
Best for Low-Sugar Diets
8.8/10
Metamucil
Best for Digestive Regularity
9.2/10
Vitafusion
9.0/10

Best Fiber Supplement for Low-Carb Diet

Embarking on a low-carb journey often means navigating a maze of fiber options that promise to keep your digestion happy without tipping the carb scales. Finding the perfect fiber supplement is like discovering a hidden gem—crucial, convenient, and delightfully effortless. Let’s uncover the top choices that seamlessly blend into your diet, supporting your health goals with precision and flair.

Most Wallet-Friendly: Amazon Basics Digestive Gummies

Amazon Basics (previously Solimo) Fiber 4g Gummy - Digestive Health, Supports Regularity, Orange, Lemon & Strawberry, 90 Gummies (2 per Serving)
Highlights
Effective digestive support
Tastes good and smooth
Good value for price

As our most wallet-friendly pick, the Solimo Fiber Gummies deliver a hefty 90 gummies, each packing 4g of fiber — perfect for a 45-day supply without breaking the bank.

The taste is surprisingly good and smooth, making daily fiber intake feel like a treat rather than a chore.

It effectively supports digestion, helping you stay regular while keeping your low-carb goals intact.

However, be mindful of possible gassiness and the risk of discoloration if exposed to heat.

Plus, watch for small price fluctuations over time.

Overall, a smart, budget-conscious choice for fiber supplementation on a low-carb diet.

Be sure to also check out the best iron supplement for cats for more options! Also, here is the price history so you know exactly when to buy!

Price history for Amazon Basics Digestive Gummies on Amazon

Best for Gut Health: 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
Vegan and keto friendly

This USDA-approved, non-GMO psyllium capsule really stands out for gut health.

Its natural, vegan-friendly formula supports gastrointestinal function effectively and promotes regularity without any fuss.

While it does require taking multiple pills daily, the convenience of capsule form makes it easy to incorporate into your keto or low-carb routine.

The certified quality assured manufacturing gives us confidence in its purity and potency.

Plus, packaged in the USA by a family-owned company since 1968, it's a trusted option.

It's a solid choice for boosting soluble fiber in a low-carb lifestyle.

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Price history for Now Foods Psyllium Husk on Amazon

Best for Low-Sugar Diets: YUM-V'S Prebiotic Fiber Gummies

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
Low carb-friendly
Delicious berry flavor
Sugar-free and tasty

These sugar-free prebiotic gummies are a delightful solution for anyone on a low-carb diet.

With 4g of soluble fiber per serving, they effectively support your digestive health and promote gut balance without any sugar guilt.

The natural berry flavor is bursting with sweet taste, making daily supplementation a treat rather than a chore.

Plus, they're crafted with high-quality, clean ingredients — non-GMO, gluten-free, and suitable for various dietary restrictions.

While the dose per gummy is modest and long-term effects are still being explored, these gummies are a fantastic, tasty addition to your nutrition routine.

Be sure to also check out the best mineral supplement for water for more options! Also, here is the price history so you know exactly when to buy!

Price history for YUM-V'S Prebiotic Fiber Gummies on Amazon

Best for Digestive Regularity: 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
Effective digestive support
Plant-based psyllium husk
Convenient capsules

Metamucil Daily Fiber Capsules is our go-to choice for digestive regularity, thanks to its trusted reputation and plant-based psyllium husk.

It’s incredibly convenient to take on the go, making it perfect for busy lifestyles.

The two-ingredient formula keeps things simple and natural, supporting not just digestion but also helping to maintain healthy blood sugar levels and lower cholesterol.

Keep in mind, you’ll want to sip plenty of water and watch out for possible bloating, but overall, it's effective, reliable, and doctor-approved.

If you're after consistent gut health without fuss, this capsule is a solid choice.

Be sure to also check out the best cranberry supplement for cats for more options! Also, here is the price history so you know exactly when to buy!

Price history for Metamucil on Amazon

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 convenient

Vitafusion Fiber Well gummies deliver a delightful burst of fruity flavors—peach, strawberry, and blackberry—that make taking fiber almost feel like a treat.

Their sugar-free, low-calorie formula is perfect for low-carb lifestyles, offering 5 grams of prebiotic fiber in just two chews.

Although they have a chewy, slightly rubbery texture, their ease of use and great taste give them a strong edge over traditional pills.

Keep in mind, these are more for gentle digestive support rather than hefty fiber needs, but they excel at quick, convenient, and tasty supplementation.

Be sure to also check out the best supplement for flexibility for more options! Also, here is the price history so you know exactly when to buy!

Price history for Vitafusion 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
Delicious, real fruit flavors
Supports gut health
Easy, quick results

Bellway Super Fiber + Fruit stands out with its delicious real fruit flavors that make supplementing a pleasure rather than a chore.

It’s made with organic psyllium husk, offering a powerful mix of soluble and insoluble fiber that nourishes your gut microbiome while supporting digestion, immune health, and regularity.

The blend is non-GMO, gluten-free, and artificial ingredient-free, giving you peace of mind.

Most importantly, it delivers quick, effective results—often within just two days—helping you feel lighter and more comfortable.

Just note, it can be a bit clumpy unless blended well, but overall, a tasty, gut-loving choice for low-carb lifestyles.

Be sure to also check out the best fiber supplement after gastric bypass for more options! Also, here is the price history so you know exactly when to buy!

Price history for Bellway Super Fiber on Amazon

Benefiber Fiber Supplement for Low-Carb Diet

Benefiber Daily Prebiotic Fiber Supplement Powder for Digestive Health, Daily Fiber Powder, Unflavored - 62 Servings (8.7 Ounces)
Highlights
Easy to dissolve
Taste-free and clean
Supports digestive health

It dissolves easily into your favorite foods without altering the taste, making it a super convenient choice for low-carb eaters.

Its pure, taste-free profile means you can mix it into anything—smoothies, yogurts, or even your almond milk—without fuss.

Plus, it supports digestive health and relieves constipation, which is a bonus for maintaining gut wellness on a low-carb diet.

The only minor hiccup is the packaging, which can be a bit tricky to access, but overall, it’s a top contender for anyone seeking a low-calorie, sugar-free fiber supplement that gets the job done effortlessly.

Be sure to also check out the best supplement for methylation for more options! Also, here is the price history so you know exactly when to buy!

Price history for Benefiber on Amazon

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 fiber content
Great for keto baking
Naturally sourced and pure

Psyllium Husk Powder from 138 Foods is a natural powerhouse for anyone on a low-carb or keto diet.

Its 70% soluble fiber helps promote healthy digestion and regularity by attracting water and waste, acting as a prebiotic and bulk-forming laxative.

Plus, it's a fantastic binder for keto baking, giving bread-like textures without the carbs.

While it has an unpleasant taste and doesn’t dissolve easily, a good shake solves most issues.

Overall, a clean, effective choice for fiber needs—and manufactured in a GMP-certified facility for peace of mind.

Be sure to also check out the best mushroom supplement for bloating for more options! Also, here is the price history so you know exactly when to buy!

Price history for It's Just! on Amazon

NOW Psyllium Husk Caps

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

NOW Psyllium Husk capsules are a convenient way to boost your fiber intake without fuss.

Formulated with soluble fiber, they work by swelling up in liquid to support regularity and overall gut health.

Plus, they’re certified vegan, non-GMO, kosher, and gluten-free, making them a flexible option for many diets, including low-carb.

While you’ll need to take multiple capsules daily and stay hydrated, the proven benefits for intestinal health and fiber support make this a dependable choice.

For a natural, quality-backed supplement, it's definitely worth considering.

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Price history for NOW Psyllium Husk Caps on Amazon

MiraLAX Gummies Fiber Supplement for Low-Carb Diet

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 gut health
High fiber content

MiraFIBER Gummies not only pack an impressive 8 grams of fiber per serving, but they also come in delightful fruit flavors that make sticking to your routine feel effortless.

Made with prebiotic fiber, they support a healthy gut by nourishing good bacteria—plus, added B vitamins boost your metabolism and energy levels.

While they can cause some gas or bloating for sensitive users, their convenience and great taste make them a top pick for those seeking a quick, satisfying way to boost fiber without sacrificing flavor.

Overall, a tasty, effective choice for your low-carb diet.

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Price history for MiraLAX Gummies on Amazon

GOBIOTIX

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 dissolve
Supports gut health naturally
Clean, plant-based ingredients

GoBiotix’s Organic & Plant-Based Gut Bacteria Support delivers a tasteless, easy-to-dissolve prebiotic that seamlessly fits into any low-carb or keto routine.

It’s organic, vegan, and free from artificial junk—just clean, real food ingredients that nourish your gut.

The blend supports healthy bacteria growth and helps reduce bloating, giving you that feel-good boost from better digestion.

While some users might experience minor bloating initially, the overall benefits of a healthier gut ecosystem shine through.

For a straightforward, reliable fiber boost, this product ticks all the boxes.

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Price history for GOBIOTIX on Amazon

Vitamatic 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 fruit flavors
Plant-based fiber source
Supports regularity

The delicious natural flavors—Blackberry, Peach, and Strawberry—make it a treat rather than a chore.

The plant-based FOS fiber from beet not only supports regularity, but aligns perfectly with a low-carb, plant-focused diet.

While you might need a few gummies per dose, the quality and natural ingredients make it worth the extra chew.

Just remember to brush afterwards if you're picky about sticking to teeth!

Overall, a tasty, reliable choice for effortless fiber support that keeps your diet on track without sacrificing flavor.

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Price history for Vitamatic Gummies on Amazon

Metamucil Fiber Supplement for Low-Carb Diet

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 blend
Curbs appetite

Metamucil's sugar-free psyllium husk fiber is a game-changer for those on a low-carb diet looking to boost fiber intake without added sugars.

It effectively traps and removes waste, helping you feel lighter and more energetic.

Plus, it supports digestive health and helps control appetite—perfect for maintaining a healthy weight and steady blood sugar levels.

While it may cause some bloating and has limited flavor options, its benefits for heart health and regularity make it a reliable choice.

If you value natural ingredients and a proven track record, this one’s worth considering.

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Price history for Metamucil 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
Supports gut health
Easy to chew

These orange-flavored gummies are a delightful way to boost your fiber intake without sacrificing taste.

Made by Metamucil, a trusted name in the fiber world, they pack 5g of plant-based fiber that works in harmony to promote digestive health and maintain that all-important gut balance.

Plus, the prebiotic inulin fiber feeds healthy bacteria, supporting overall digestion.

They're easy to chew, sugar-free, and taste fantastic — a real win for anyone wanting a quick, enjoyable fiber fix on their low-carb journey.

Be sure to also check out the best joint supplement for dogs with allergies for more options! Also, here is the price history so you know exactly when to buy!

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
Mixes clear quickly
Supports digestive health

Metamucil Clear Fiber Blend is a game-changer for anyone on a low-carb diet who needs a quick and mess-free way to boost fiber intake.

Its unflavored, no-grit formula mixes effortlessly into coffee, juice, or smoothies, making it super convenient.

Plus, it supports regularity and gut health thanks to prebiotic Inulin and Fibersol.

While it does require warm water to blend perfectly and is a bit pricier, the benefits of a seamless, digestive-friendly fiber boost make it worth considering for your routine.

Be sure to also check out the best supplement for booty growth for more options! Also, here is the price history so you know exactly when to buy!

Price history for Metamucil on Amazon

Nextdia Fiber 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)
Great taste, blueberry flavor
Gut health support

Nextdia’s organic fiber gummies pack a punch with a substantial 10g of fiber per serving, making it a fantastic choice for those on a low-carb diet who want convenient and tasty support.

The blueberry flavor is natural and enjoyable, turning supplement time into a snack break.

Plus, the inclusion of probiotics, digestive enzymes, and betaine HCl means you're not just getting fiber — you're supporting your gut, boosting immunity, and aiding digestion all in one chew.

Just beware of the blue staining and slight sweetness from monkfruit, but overall, a delightful and effective gut health helper.

Be sure to also check out the best dog supplement for itchy skin for more options! Also, here is the price history so you know exactly when to buy!

Price history for Nextdia Fiber 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 digestion & regularity
Delicious whole food bites

Their all-natural ingredients give us peace of mind, knowing exactly what we're consuming, free from any questionable additives.

The delicious whole food bites are a refreshing change from typical fiber supplements—no gritty powders or bland pills here.

One serving packs 5 grams of prebiotic fiber, supporting digestive health and helping keep things moving smoothly without discomfort or bloating.

Plus, the unique format makes it easy to incorporate into our daily routine.

While the price is a bit steep and flavor options are limited, the quality and taste make it worth the splurge for those on a low-carb diet seeking a clean, effective fiber boost.

Be sure to also check out the best gnc supplement for muscle gain for more options! Also, here is the price history so you know exactly when to buy!

Price history for Fiome Fiber Bite on Amazon

Kirkland Fiber Capsules

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
Natural psyllium husk

It serves as a reliable daily source of soluble fiber, making it a fantastic addition to any low-carb diet.

The natural psyllium husk helps promote healthy digestion without crashing your macros.

Plus, the capsules are a more convenient alternative to powders — no messy scoops!

However, swallowing might be a bit tricky for some, and it has a mild taste that isn’t overly offensive but worth noting.

As long as you follow the directions, this supplement can truly support your fiber intake effortlessly and effectively.

Be sure to also check out the best supplements for pitbulls for more options! Also, here is the price history so you know exactly when to buy!

Price history for Kirkland Fiber Capsules on Amazon

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