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Fiber Supplement Roundup

We analyzed 20 products to help you choose the healthiest & safest options.

Finding the perfect Fiber Supplement shouldn't feel like a guessing game. At CakeID, we take food transparency seriously. We have analyzed over 20 products in this category, breaking down every ingredient list to uncover hidden additives, excessive sugar levels, and potential allergens.

Whether you are searching for strictly Vegan options, Gluten-Free snacks, or simply want to avoid high-processed foods, our algorithm ranks products based on a comprehensive Health Score. Below is our definitive ranking of the safest and healthiest Fiber Supplement you can buy in 2026, sorted by their ingredient purity.

Editor's Quick Picks

Detailed Reviews

Calories
357
Sugar
0g
HealthPlus

Psyllium Husk

Ingredients: Psyllium Husk

The Good

  • Excellent Health Score
  • Sugar Free
  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis
Calories
25
Sugar
1g
Benefiber

Benefiber Prebiotic Fiber + Probiotics Dietary Supplement

Ingredients: water, sucrose, pectin, natural flavors, citric acid, sodium citrate, color, grape juice concentrate, watermelon juice concentrate, coconut oil, carnauba wax, corn starch

The Good

  • Excellent Health Score
  • Low Sugar

The Bad

  • Ultra Processed
View Full Analysis
Calories
375
Sugar
0g
Unknown

Benefiber Previotic Fiber Supplement

Ingredients: wheat dextrin, sorbitol, corn starch, microcrystalline cellulose, dextrates, citric acid, natural and artificial flavor (soy) magnesium stearate, silicon dioxide, sucralose, aspartame** acesulfame potassium, red 40 lake, yellow 6 lake, blue 1 lake "phenylketonurics: contains phenylalanine rev c 3 g 11%' 3 g og keep out of reach of children, if you are pregnant or nursing a baby, ask a healthcare professional before use, not a substitute for a balanced diet, due to the risk of choking, the chewable tablet is not to be used in children under the age of 5 store at controlled room temperature 20-25°c (68-77°f) 32020 gsk or licenses, grea

The Good

  • Sugar Free

The Bad

  • Contains Red 40 (Allura Red)
View Full Analysis
Calories
259
Sugar
0g
Metamucil

Psyllium Fiber Supplement

Ingredients: Psyllium husk, maltodextrin, citric acid, natural and artificial orange flavor, aspartame, Yellow 6

The Good

  • Excellent Health Score
  • Sugar Free
  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis
Calories
259
Sugar
0g
Metamucil

Psyllium Fiber Supplement

Ingredients: Psyllium husk, maltodextrin, citric acid, natural and artificial orange flavor, aspartame, Yellow 6

The Good

  • Excellent Health Score
  • Sugar Free
  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis
Calories
10
Sugar
0g
Equate

Fiber Powder

Ingredients: Dextrin

The Good

  • Excellent Health Score
  • Sugar Free
  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis
Calories
250
Sugar
0g
Metamucil

Psyllium Fiber Supplement

Ingredients: psyllium husk, maltodextrin, citric acid, natural and artificial orange flavor, aspartame, yellow 6

The Good

  • Excellent Health Score
  • Sugar Free
  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis
Calories
455
Sugar
18g
Meta mucil

Meta mucil fiber thins

Ingredients: Wheat flour, cocoa (processed with alkali), palm oil, fructose, inulin, oat hull fiber, psyllium husk, brown sugar, sugar, corn oil, soy lecithin, sodium bicarbonate, natural and artificial cookie flavors, molasses, sucralose. CONTAINS: SOY, WHEAT DIST, BY: PROCTER & GAMBLE, CINCINNATI, OH 45202 BEST IF USEL

The Good

  • Convenient Snack

The Bad

  • Ultra Processed
View Full Analysis
Calories
259
Sugar
0g
Metamucil

Psyllium Fiber Supplement

Ingredients: psyllium husk, maltodextrin, citric acid, natural and artificial orange flavor, aspartame, yellow 6

The Good

  • Excellent Health Score
  • Sugar Free
  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis
Calories
250
Sugar
0g
Benefiber

Prebiotic Fiber Supplement

Ingredients: Dextrin

The Good

  • Excellent Health Score
  • Sugar Free
  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis
Calories
15
Sugar
0g
Benefiber

Prebiotic fiber supplement

Ingredients: wheat dextrin

The Good

  • Excellent Health Score
  • Sugar Free
  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis
Calories
10
Sugar
0g
vitafusion

Fiber Well Fiber Supplement

Ingredients: Polydextrose, water, gelatin, xylitol; less than 2% of: blend of oils (coconut and/or palm) with beeswax and/or carnauba wax, colors (annatto extract, blueberry and carrot concentrates, purple carrot juice concentrate), malic acid, natural flavors, sucralose.

The Good

  • Excellent Health Score
  • Sugar Free

The Bad

  • Ultra Processed
View Full Analysis
Calories
15
Sugar
0g
KIRKLAND Signature

OPTIFIBER Prebiotic Fiber Supplement

Ingredients: Wheat Dextrin

The Good

  • Excellent Health Score
  • Sugar Free
  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis
Calories
10
Sugar
0g
HEB

Fiber, Prebiotic Fiber Supplement

Ingredients: Ingredients updating...

The Good

  • Excellent Health Score
  • Sugar Free
  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis
Calories
431
Sugar
0g
Leader

Daily Fiber Supplement

Ingredients: Ingredients updating...

The Good

  • Excellent Health Score
  • Sugar Free
  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis
Calories
167
Sugar
0g
Sunfiber GI

Fiber supplement

Ingredients: Ingredients updating...

The Good

  • Excellent Health Score
  • Sugar Free
  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis
Calories
250
Sugar
17g
Meta Mycologist

Meta Fiber Supplement

Ingredients: Ingredients updating...

The Good

  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis
Calories
10
Sugar
0g
Bellway

Bellway Super Fiber Psyllium Supplement

Ingredients: Ingredients updating...

The Good

  • Excellent Health Score
  • Sugar Free
  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis
Calories
0
Sugar
0g
Metamucil

Fiber Therapy

Ingredients: Sucrose, Psyllium Husk, Citric Acid, Natural and Artificial Orange Flavor, Silica, FD&C Yellow No. 6.

The Good

  • Excellent Health Score
  • Sugar Free
  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis
Calories
333
Sugar
0g
Benefiber

Prebiotic Fiber Supplement

Ingredients: Wheat dextrins, microcrystalline cellulose. Contains <2%: magnesium stearate.

The Good

  • Excellent Health Score
  • Sugar Free
  • Clean Ingredients

The Bad

  • Ultra Processed
View Full Analysis

Frequently Asked Questions

Are products in the Fiber Supplement category always vegan?+
Not necessarily. We analyzed over 20 products in the Fiber Supplement category on CakeID. While some are plant-based, many contain hidden animal ingredients like milk powder, whey, or gelatin. Always check the "Is Vegan" status on our product pages.
How does CakeID rank the best Fiber Supplement?+
We rank Fiber Supplement based on their nutritional value, ingredient cleanliness (fewer additives), and vegan compatibility. Products with lower sugar and simpler ingredients rank higher.
Can I find low-calorie Fiber Supplement here?+
Yes! Our list highlights the nutritional details of each product. Look for the "Calories" badge on the product cards above to find low-calorie options.