Best fiber supplement for gut health

Sunfiber® 90-Day

Tomorrow’s Nutrition Sunfiber® delivers 6 grams of clinically proven, clear, grit free soluble fiber. A true regulating fiber, improves both conditions of occasional constipation and poor elimination as well as occasional diarrhea and loose stools. The result is regularity with healthy consistency.* Tomorrow’s Nutrition Sunfiber® promotes intestinal and colon health, aids in the transit of food through the intestines and helps control the glycemic index of foods.* Tomorrow’s Nutrition Sunfiber® dissolves fast and clear in your favorite beverage and won’t alter the taste or texture of foods. Sunfiber® may be added to recipes when cooking and baking. Simply stir in Sunfiber® until dissolved.

$64.99 Regular price
Unit price
per 
Shipping calculated at checkout.
Benefits
  • Excellent Source of Low FODMAP Fiber, delivering 6 grams of soluble fiber per serving.
  • Sunfiber delivers true regularity without excess gas or bloating*
  • Sunfiber has been shown to improve the growth of helpful bacteria and decrease harmful bacteria.*
  • Sunfiber not only helps with occasional constipation, but uniquely helps with diarrhea as well, returning stool content to a normal healthy state. Unlike other prebiotic fibers, Sunfiber will not lead to a state of diarrhea with frequent consumption.*
  • Sunfiber has a healthy satiety effect, slowing gastric transit time and increasing satiation hormones, resulting in a comfortably full and satiated feeling.*
  • Sunfiber is all natural and 100% Gluten Free (many so called gluten free fibers contain levels up to 20 ppm).
  • Non GMO Project Verified, Low FODMAP certified, Certified Glyphosate Residue Free, Kosher and Vegan.
  • No dairy, soy, sugar, salt, wheat, eggs, artificial flavors or other potential allergens.
  • No taste, odor or grit. Mix with your favorite recipes, beverages, smoothies, cereals and more.
American Express
Apple Pay
Diners Club
Discover
Google Pay
Mastercard
PayPal
Shop Pay
Venmo
Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

This website is encrypted. We take your security very seriously. All transactions powered by Shopify.

Rates are approximations. Exact rates will be provided at checkout.

Best fiber supplement for gut health

Sunfiber® 90-Day

$64.99
Woman drinking water from a glass.

Why Your Gut Will Thank You?

Gentle Yet Effective

Unlike harsh laxatives or bloating-prone fibers, Sunfiber® works naturally with your body.

Low-FODMAP Certified

Ideal for sensitive digestion, including those with IBS.

Truly tasteless and mixes easily

Add to water, smoothies, or coffee - no grit, no flavor, just gut goodness.

Backed by Science

With over 180 published studies, Sunfiber® is one of the world’s most researched soluble fibers.

Safe for Daily Use

Non-GMO, gluten-free, and suitable for adults, kids, and seniors.

Certifications

Best fiber supplement for bloating

How To Take Sunfiber® Daily for Best Results?

1.

Add 1 scoop (7 grams) of Sunfiber® into at least 8 oz. of water, yogurt, smoothies, or another beverage or food.

2.

Stir well for 60 seconds until completely dissolved.

3.

Take once or twice daily as part of your routine.

Dietary supplements for digestion

Why Are Prebiotics Important for a Healthy Gut Microbiome?

Probiotics may get all the spotlight, but prebiotics are the unsung heroes of gut health. These powerful plant fibers don't just pass through your system,they serve as fuel for the good bacteria already living in your gut. By nourishing these friendly microbes, Sunfiber® helps support digestion, improve regularity, and strengthen the gut lining from within.* Think of it as prepping the soil before planting seeds - a healthy gut needs strong roots.
Best fiber supplement for gut health

Science Behind Tomorrow's Nutrition

We are industry leaders in the research and manufacturing of high quality nutritional supplements. Our reputation is built on providing a full range of simple, proven, and trusted supplements using only the finest ingredients.
By focusing on ingredients supported by clinical studies, we offer nutritional support for the entire family. Our award-winning products enhance the body’s own ability to promote and manage health. We are continuously developing safe, innovative products formulated with proven, trusted ingredients from around the world.
Benefits of Sunfiber

What are the benefits of Sunfiber®?

Supports healthy bowel movement frequency*

Helps promote a healthy gut microbiome*

Reduces occasional bloating and gas*

Promotes satiety and blood sugar support*

About Sunfiber®

What is Sunfiber®?

Sunfiber® is an all-natural, regulating soluble dietary fiber derived from the guar bean. Sunfiber® acts as the perfect food source for probiotics, helping increase beneficial bacteria and reduce harmful bacteria in the gut.*

What’s the difference between soluble and insoluble fiber?

Insoluble fiber adds bulk to stool (found in grains, nuts, seeds, and fruit skins). Soluble fiber dissolves in water. The right soluble fiber supports digestion, feeds good bacteria, moderates glucose levels, helps lower cholesterol, and promotes satiety.* Some soluble fibers, however, ferment too quickly, causing gas, bloating, and even diarrhea. Sunfiber® is a soluble, low-FODMAP fiber that supports digestive health without these side effects.*

What are prebiotics?

Prebiotics are food for probiotics. The right prebiotic fiber is essential for probiotics to thrive - but it must be gentle and well tolerated. Sunfiber® is unique among prebiotics: it ferments steadily, producing more short-chain fatty acids (SCFAs) over time, without causing uncomfortable gas or bloating.*

What are short-chain fatty acids (SCFAs)?

SCFAs are small compounds produced by fermentation of dietary fiber by gut bacteria. The three primary SCFAs are acetate, propionate, and butyrate. Butyrate fuels the cells of the colon and supports intestinal health.*

What is the difference between guar gum and Sunfiber®?

Guar gum is a viscous, water-soluble carbohydrate from the guar seed, used in foods as a thickener and stabilizer. Sunfiber®, however, is a low-viscosity form called partially hydrolyzed guar gum (PHGG). It dissolves completely and is used as a gentle fiber source in supplements and functional foods.

What are FODMAPs?

FODMAPs (Fermentable oligosaccharides, disaccharides, monosaccharides, and polyols) are poorly absorbed sugars that may trigger digestive discomfort in those with IBS or other functional GI disorders. Many high-fiber foods are also high in FODMAPs, making it difficult to meet daily fiber needs when following a low FODMAP diet. Sunfiber® is proud to be the first prebiotic fiber to achieve Low-FODMAP Certification by Monash University.

Taking Sunfiber®

Are there any side effects?

At recommended dosages, side effects like gas, bloating, or diarrhea are virtually nonexistent.

What is the recommended intake?

25 grams/day for women and 38 grams/day for men, yet most people only get 10–15 grams. Sunfiber® helps close this gap.

Can Sunfiber® be taken when pregnant or breastfeeding?

Sunfiber® is safe and has long been used during pregnancy and lactation, though you should consult your healthcare practitioner before use.

Can children take Sunfiber®?

Appropriate for all ages above 9 months. One 6-gram serving is recommended.

Can Sunfiber® be added to hot foods or liquids?

Sunfiber® is stable in hot foods and beverages.