Fiber plays a vital role in maintaining digestive health, regulating blood sugar levels, and supporting heart health. Many people struggle to get enough fiber through their daily diet alone, making fiber supplements a convenient and effective solution.
Powdered fiber supplements are particularly popular because they are easy to mix into drinks, smoothies, or meals, offering flexibility and consistent intake. With so many options available on the market, choosing the right one can be overwhelming.
This guide reviews the top 10 best fiber supplement powders, highlighting their key features, benefits, and considerations to help you improve your overall wellness and digestive comfort.
10. Micro Ingredients Triple Fiber Powder
Organic Triple Fiber Powder delivers a powerful 3‑in‑1 blend of chicory root inulin, acacia fiber, and psyllium husks—all sourced from certified organic farms.
At 2 lb (32 oz) you get a generous supply of soluble, easily digestible fiber that supports healthy digestion, colon function, and the growth of beneficial gut bacteria.
The unflavored, vegan‑friendly formula mixes effortlessly into water, juice, or smoothies, making it ideal for anyone who prefers a powder over capsules for faster absorption and higher concentration.
Because it’s free from soy, dairy, gluten, tree nuts, fillers, preservatives, and artificial flavors, it fits seamlessly into most dietary plans.
Each batch is verified by third‑party labs for purity, potency, and non‑GMO status, so you can trust you’re getting a clean, safe supplement. Use it daily to help control hunger, maintain regularity, and nourish the prebiotic ecosystem that fuels probiotic health.
(These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.)
Pros
- Triple‑fiber blend supports comprehensive gut health
- Unflavored powder mixes easily in any beverage
- Vegan, non‑GMO, and allergen‑free formulation
- Large 2 lb size offers excellent value
- Lab‑tested for purity, safety, and potency
Cons
- May cause mild bloating initially
- Requires stirring to avoid clumps
- Not suitable for those avoiding all fiber supplements
9. DRFOSTER Prebiotic Fiber Powder
DRFOSTER Prebiotic Fiber Powder is a 100 % plant‑based, soluble fiber blend designed to support digestive health and regularity without compromising taste or diet.
Each scoop delivers 5 g of a synergistic mix of acacia fiber, organic baobab powder, inulin prebiotic, gluten‑free oat fiber, and FOS powder—providing a broader spectrum of benefits than a single‑source fiber.
The powder dissolves completely and clear in water, juice, smoothies, or even baked goods, leaving no gritty residue. With only 10 calories, zero sugar, gluten‑free, non‑GMO, and vegan‑friendly, it fits effortlessly into keto, IBS‑friendly, or any low‑carb lifestyle.
One 350 g bottle supplies 70 servings, giving you a full 70‑day supply of gut‑supporting prebiotics that have been clinically shown to balance the microbiome and promote regularity without excess gas or bloating.
Whether you’re looking to boost daily fiber intake or simply want a convenient, flavor‑neutral option, DRFOSTER’s formula makes it easy to meet your nutritional goals.
Pros
- Broad‑spectrum fiber from five natural sources
- Dissolves clear, no clumping or grit
- Sugar‑free, gluten‑free, only 10 calories
- Vegan, non‑GMO, IBS‑friendly formula
- 70‑day supply with convenient measuring scoop
Cons
- Unflavored may be bland for some users
- Requires mixing with sufficient liquid
- May cause mild adjustment period for gut
8. NOW Foods Psyllium Husk Powder
NOW Foods Psyllium Husk Powder delivers a potent, plant‑based source of soluble fiber in a convenient, non‑GMO verified formula.
Each level tablespoon provides 6 g of soluble fiber, helping you meet the daily 7 g recommendation while supporting heart health when paired with a low‑saturated‑fat diet.
The fine powder mixes easily—just stir it into at least 12 oz of water or juice and drink immediately for optimal texture and effectiveness. Produced under NPA A‑rated GMP certification, every batch undergoes rigorous testing for stability, potency, and purity.
Proudly packaged in the USA by a family‑owned company that’s been serving health‑conscious consumers since 1968, this product combines quality, tradition, and modern nutrition in one simple scoop.
Pros
- Excellent source of heart‑healthy soluble fiber
- Simple, quick daily mixing instructions
- Provides 6 g fiber per serving
- GMP‑certified for consistent potency and safety
- Non‑GMO Project Verified, USA‑packaged
Cons
- Requires at least 12 oz liquid to mix
- May thicken quickly if not consumed immediately
- Not suitable for low‑fiber diet phases
7. Gobiotix Fiber Supreme Powder
GOBIOTIX Fiber Supplement Powder delivers plant‑based, soluble fiber that gently nourishes beneficial gut bacteria while supporting daily digestive balance.
The organic, sprouted‑grain blend is free from psyllium husk, artificial sweeteners, refined sugars, and fillers, making it a clean, tasteless option that mixes effortlessly into water, smoothies, coffee, or any favorite beverage.
Ideal for keto, low‑carb, vegan, and paleo lifestyles, each serving provides a month‑long supply of prebiotic fiber without altering flavor or texture.
Produced in a GMP‑certified, FDA‑registered facility in the USA, this gluten‑free formula meets high‑quality standards for consistency and purity, giving you confidence in every scoop.
Pros
- Plant‑based soluble fiber for daily gut support
- Smooth, clump‑free mix in any drink
- Keto‑friendly, vegan, and paleo‑compatible
- No added sugars, artificial sweeteners, or fillers
- Made in USA GMP‑certrolled facility
Cons
- Unflavored may feel bland to some users
- Requires consistent daily intake for best results
- Not a source of protein or other nutrients
6. Metamucil Fiber Supplement (Unflavored)
Metamucil Fiber Supplement, Unflavored Clear Mixing Powder delivers a plant‑based prebiotic fiber blend that slips seamlessly into any beverage.
The clear, grit‑free formula dissolves instantly in coffee, smoothies, juice, tea, or even water—no residue, no flavor alteration. Each container provides 75 convenient teaspoons, giving you a month‑long supply of soluble fiber that supports daily digestive health without added sugars.
The proprietary Fibersol® complex works to promote regularity and help relieve occasional constipation, while Inulin serves as a prebiotic, feeding beneficial gut bacteria for a balanced microbiome.
Backed by the makers of the #1 selling fiber supplement brand, this product combines trusted science with a clean, unflavored profile, making it ideal for anyone looking to boost fiber intake without compromising taste or texture.
Pros
- Dissolves clear, no gritty texture left behind
- Unflavored, perfect for any drink or recipe
- Supports regularity with clinically studied Fibersol®
- Feeds gut bacteria thanks to prebiotic Inulin
- Trusted brand ensures consistent quality and safety
Cons
- No natural sweetness for those who prefer flavored options
- Requires mixing tool for precise teaspoon measurement
- May cause mild bloating if increased too quickly
5. Benefiber On The Go Prebiotic Fiber Supplement Powder
Benefiber On The Go Prebiotic Fiber Supplement Powder delivers a convenient, daily boost of dietary fiber in a portable stick‑pack format. Each box contains two packages of 36 unflavored powder sticks (3.92 oz total), making it easy to slip a serving into a bag, purse, or gym kit.
The formula is built on wheat dextrin, a soluble prebiotic fiber that nourishes the beneficial bacteria naturally residing in your gut, helping to maintain regularity and overall digestive health.
Because it’s completely free of sugar, gluten, and artificial flavors, the powder dissolves clear and tasteless in any non‑carbonated beverage or soft food, so you won’t notice a change in flavor.
For optimal results, simply mix one stick into a drink or food three times a day—ideal for anyone 12 years and older who wants a hassle‑free way to meet their daily fiber goals.
Pros
- Convenient stick packs for on‑the‑go use
- No sugar, gluten, or artificial flavors
- Clear‑dissolving formula won’t alter taste
- Supports growth of beneficial gut bacteria
- Easy three
4. Physician’s CHOICE Easy Mix Fiber
Physician’s CHOICE Easy Mix Fiber delivers 6 g of natural prebiotic soluble fiber per serving, a doctor‑developed formula that supports healthy digestion, balanced hunger, and regularity.
The blend uses two clinically‑studied prebiotic sources to nourish the beneficial bacteria already in your gut, helping you feel fuller between meals while keeping your system moving smoothly.
Unlike traditional psyllium husk, this powder stays completely smooth—no gritty texture or sludge—so you can stir it into hot coffee, cold water, smoothies, or even soups without any clumping.
It’s completely unflavored, sugar‑free, and free of artificial ingredients, making it a versatile addition to any daily routine.
Each batch is 3rd‑party tested for safety, purity, and potency, and manufactured in the USA under strict quality controls, ensuring you receive a trustworthy, high‑quality supplement you can rely on.
Pros
- Doctor‑developed formula for optimal gut health
- Easy to mix, no grit or clumps
- Supports probiotics with clinically‑studied prebiotics
- Sugar‑free, unflavored, fits any beverage
- 3rd‑party tested for purity and potency
Cons
- May require stirring for thicker drinks
- No flavor for those preferring taste
- Needs consistent daily use for best results
3. Metamucil 4-in-1 Psyllium Husk Daily Fiber Powder
Metamucil 4‑in‑1 Psyllium Husk Fiber Supplement delivers the power of plant‑based psyllium in a convenient, sugar‑free orange‑flavored powder.
Each serving provides a full dose of soluble fiber that supports digestive regularity, heart health by helping lower cholesterol, healthy blood‑sugar levels, and appetite control—all backed by a brand trusted by doctors for over 90 years.
With 180 ready‑to‑mix teaspoons, you can easily close the fiber gap that only 1 in 10 Americans meet through diet alone. The refreshing orange taste makes daily use pleasant, while the sugar‑free formula ensures you’re not adding extra calories.
Whether you’re looking to feel lighter, boost energy, or simply keep your gut happy, Metamucil’s unique 4‑in‑1 approach makes it a simple, effective addition to any wellness routine.
Pros
- Supports digestive regularity and comfort daily
- Helps lower cholesterol for heart health
- Aids in maintaining stable blood‑sugar levels
- Promotes appetite control and weight management
- Sugar‑free, refreshing orange flavor you’ll enjoy
Cons
- Requires mixing with liquid promptly
- May cause mild bloating initially
- Not a low‑calorie food substitute
2. Benefiber Daily Prebiotic Fiber Supplement Powder
Benefiber Daily Prebiotic Fiber Supplement Powder is a convenient, unflavored way to bridge the fiber gap and keep your gut thriving.
Each 8.7‑ounce bottle provides 62 servings of plant‑based wheat dextrin, a prebiotic fiber that nourishes beneficial bacteria and supports overall digestive health.
The formula is designed to dissolve completely and transparently in non‑carbonated beverages, coffee, smoothies, or even sprinkled into recipes—no grit, no taste, just pure fiber.
With GLP‑1 support, the supplement helps you feel fuller longer, making it a smart addition to weight‑management or wellness routines. As America’s #1 prebiotic fiber brand, Benefiber is also HSA and FSA eligible, offering a cost‑effective solution for everyday health.
Pros
- Easy to mix with food or drinks, dissolves clear
- Unflavored, doesn’t change taste
- Supports digestive regularity
- Sugar‑free and gluten‑free
- Nourishes good gut bacteria as prebiotic fiber
Cons
- May cause mild gas or bloating in some users
- Must be mixed into non‑carbonated liquids
- Some may not notice strong digestive effect immediately
1. Benefiber Daily Prebiotic Fiber Supplement Powder
Benefiber Daily Prebiotic Fiber Supplement Powder is a 17.6‑ounce, unflavored bottle that delivers 125 servings of clean, plant‑based fiber.
Formulated with wheat dextrin, this prebiotic nourishes the good bacteria in your gut, helping you maintain optimal digestive health while supporting GLP‑1 for a feeling of fullness that lasts.
The powder mixes completely clear and grit‑free into any non‑carbonated drink or soft food, making it effortless to boost your daily fiber intake without altering taste. With zero sugar, gluten, artificial flavors, and only a few calories per serving, it’s a light addition to any diet.
As America’s #1 prebiotic fiber brand, Benefiber offers the confidence of a trusted name, and the product is HSA/FSA eligible for added convenience.
Pros
- Dissolves clear, no gritty texture
- Plant‑based wheat dextrin prebiotic fiber
- Supports fullness with GLP‑1 activation
- Sugar‑free, gluten‑free, low‑calorie formula
- Eligible for HSA and FSA reimbursement
Cons
- Only works with non‑carbonated liquids
- May require multiple servings for high fiber needs
- Unflavored may be unnoticed in strong‑tasting foods
Frequently Asked Questions
What should I look for when choosing a fiber supplement powder?
- Type of fiber – soluble (e.g., psyllium, inulin) helps lower cholesterol and glucose, while insoluble (e.g., wheat bran) adds bulk for regularity. A blend offers balanced benefits.
- Solubility & texture – powders that dissolve completely in water, juice, or smoothies are easier to consume and less likely to cause clumping.
- Additives – avoid products with artificial sweeteners, colors, or unnecessary fillers if you have sensitivities.
- Dosage per serving – check how many grams of total fiber you get per scoop; most adults need 25‑30 g of fiber daily from all sources.
- Allergen info – ensure it’s free from nuts, dairy, gluten, or other allergens you may need to avoid.
How much fiber powder should I take each day?
- Start low: 1–2 g (about half a scoop) of powder mixed with plenty of liquid to let your gut adjust.
- Gradually increase: Add 1 g every 2–3 days until you reach the product’s recommended serving (usually 5–10 g of fiber per scoop).
- Total daily goal: Aim for 25–30 g of total dietary fiber from food + supplement. If you already eat high‑fiber foods, you may need less from the powder.
- Stay hydrated: Drink at least 8 oz (250 ml) of water with each serving and keep up fluid intake throughout the day to prevent constipation.
Conclusion
Choosing the right fiber supplement ultimately hinges on aligning the product’s ingredients, texture, and dosage with your personal health goals and lifestyle preferences.
Prioritizing soluble and insoluble fiber blends can support digestive regularity, blood‑sugar balance, and heart health, while a palatable taste and easy mixing ensure consistent use. Pay close attention to added sugars, artificial additives, and the source of the fiber to avoid unnecessary fillers.
By evaluating these factors alongside your dietary needs, you can confidently select a powder that enhances gut function, sustains satiety, and fits seamlessly into daily routines, making fiber supplementation both effective and enjoyable.
