Fiber supplements

Sunfiber® 30-Day

Tomorrow’s Nutrition Sunfiber® delivers 6 grams of clinically proven, clear, grit-free soluble fiber. A true regulating fiber, it improves conditions of occasional constipation, 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.

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Benefits
  • Excellent source of prebiotic soluble fiber
    Helps with both occasional constipation and occasional diarrhea*
  • Promotes balanced digestive health*
  • Supports a healthy microflora balance*
  • Promotes satiety and blood glucose support*
  • Dissolves quickly and completely
  • 100% all-natural and gluten-free
  • Certified Kosher and vegetarian
  • Non-GMO and Certified Glyphosate Residue-Free
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Fiber supplements

Sunfiber® 30-Day

$24.99
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

Sunfiber® 30-Day

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.

Fiber supplements

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 nourish the gut lining from within.* Think of it as prepping the soil before planting seeds - a healthy gut needs strong roots.
Scientist in a lab holding a blue liquid in a test tube

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 active 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, or 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 prebiotic fibers: it ferments steadily, producing more short-chain fatty acids (SCFAs) over time, without causing excess gas or bloating.*

Is Sunfiber® a prebiotic?

Sunfiber® is a Prebiotic fiber that is unique in comparison to other non galactomannan based fibers. A prebiotic fiber is one that produces “short chain fatty acids” (SCFA) in the gut via a fermentation process. The rate of production of SCFAs is very important. If fermentation occurs rapidly (as is the case with Inulin and other soluble fibers) the result is an excess of uncomfortable bloating and flatulence. The fermentation process of Sunfiber® is extremely slow resulting in a higher total amount of SCFAs that are produced over a greater period of time, leading to significantly less gas, bloating and discomfort.

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.

Is Sunfiber® safe?

Sunfiber® has been affirmed as GRAS (Generally Regarded As Safe) by an expert panel at a level up to 60 grams per day and is approved as a fiber source by the U.S. Food and Drug Administration, Health Canada and other countries.

Is Sunfiber® natural product?

Sunfiber® natural guar fiber has been classified as a 100 percent natural ingredient by the International Organization for Standardization (technical specification ISO 19657:2017). Sunfiber® starts with natural guar beans which are grown in fields that are not treated with chemicals. No preservatives or additives are used or added during manufacturing. Sunfiber® is certified Kosher, Halal, vegetarian (not of any animal origin nor derivative) and non-GMO Project Verified, Glyphosate Residue Free and 100% Gluten free.

What is the caloric value of Sunfiber®?

Each serving of Sunfiber® contains just 15 calories.

How should Sunfiber® be stored?

Sunfiber® should be kept in a cool and dry place. Keep away from excess light, heat and moisture.

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 while 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 side effects?

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

What is the recommended intake of fiber?

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

How much Sunfiber® should I consume?

The typical recommended single serving of Sunfiber® 7 grams. The current adequate intake for dietary fiber is 25 grams/day for women and 38 grams/day for men. The daily amount of Sunfiber® that should be consumed by healthy people looking to meet the daily recommended level of fiber would be the difference between their fiber intake from food and that of the recommendedfiber intake for men and women.

When should I take Sunfiber®?

Sunfiber® may be taken at any time of the day but is often recommended to take first thing in the morning to get your digestive system on track for a comfortable and healthy day. Take with your morning cereal, yogurt, smoothie or add to your water bottle to take with you on the go.

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 and liquids?

Sunfiber® is stable in hot foods or beverages.

Why is it not recommended to mix with carbonated beverages?

The recommendation not to mix Sunfiber® with carbonated beverages is simply that the carbonation can make it difficult to dissolve the product. Other than that, there is nothing wrong with consuming Sunfiber® with carbonated water or other carbonated beverages.

Overall rating: 4.87067 / 5 from 866 reviews.

AI Generated Review Summary

Tomorrow's Nutrition Sunfiber is a highly regarded soluble fiber supplement that effectively improves digestive regularity and intestinal health. Customers appreciate its high quality, ease of mixing, and lack of taste or grit. It has shown positive results in managing occasional constipation, diarrhea, and loose stools without causing gas or bloating.

Summary topics

  • Daily Fiber Source: 13%
  • No Bloating or Gas: 3%
  • Product Quality: 3%
  • Fiber Quality: 22%
  • GI Issue Correction: 3%

Review topics: ["size","ingredients","quality","issues","pain","results","feel","taste","improvement","benefits","relief","shipping","texture","effects","consistency","service","packaging","stomach","customer service","price","symptoms","discomfort","blend","order","use","difference","works","found","fiber","sunfiber"].

Review highlights

  • "No gas, no trouble digesting and I feel great."Carole D.
  • "Enjoying the benefits of using this quality fiber daily!"Josh B.
  • "Great fiber supplement that dissolves easily and completely without any taste and works well and consistently."Luisa D.

Reviews

Actually helps me stay regular without feeling bloated

"I’ve tried a lot of fiber supplements and this one has honestly been one of the easiest to stick with. It mixes well, tastes good, and doesn’t leave me feeling heavy or uncomfortable afterward. I noticed a difference in digestion and regularity pretty quickly, and I also like that it fits easily into my morning routine. Definitely feels gentler than some other fiber products I’ve tried. Would repurchase."

Galina A. (5/5)

No hype, just help

"There's so much hype and outlandish promises when it comes to supplements. I'm so glad I took a chance on SunFiber. It dissolves cleaner and works faster than the Miralax I used to swear by. I can also take it every day, something that always brought on the mess of runny stools with other products."

Eleanor S. (5/5)

celiac relief

"I have celiac and needed a good prebiotic to keep a healthy gut and minimize any discomfort. This has been excellent and I love waking up without gas and some abdominal discomfort. I'm a science based person and truly believe in this product"

Laura B. (5/5)

Great fiber!

"The fiber dissolves perfectly with really no taste or flavor. It works well and I find it is more effective than straight up psyllium husk by far."

Ella R. (5/5)

Easily dissolves

"I love how easily this disappears when mixed in any liquid. No grit, no sediment and over the past couple weeks I’ve noticed my gut just feels better."

Lori (5/5)

Best Fiber Supplement

"I've been using Sunfiber for over a year since my doctor recommended it for a GI disorder. It is odorless, tasteless, dissolves quickly in almost any liquid, & is even available in "to go" single dose packets. I buy it on line by subscription with free shipping. I highly recommend it for anyone who needs fiber."

Deanna S. (5/5)

Tomorrow’s Nutrition Sunfiber

"I have been using this great product for the last year. I simply love it! I can mix it in anything without any taste! I have had absolutely no issues with using as directed. My gut has never felt so good since being on this fabulous product-I highly recommend it!"

Melissa C. (5/5)

Easy dissolve

"Our 4 year old daughter had SIBO and her GI doctor recommended we add this to her daily routine. So far it’s been great and she doesn’t notice it at all! I’m starting to take it myself too!"

Karly C. (5/5)

Works like a charm!

"I was having terrible issues due to SIBO. This product really helped get my system moving. I take it every day and will forever. My belly issues have decreased exponentially. I am not a doctor and none of this is medical advice. It just really works for me."

Joey S. (5/5)

Works great

"Sunfiber works great for me. I put a scoop in my smoothie everyday for a little boost of fiber. I hear it can help reduce cholesterol too."

Robin L. (5/5)

Q&A

by taking this will it help my stubborn bloating? i get bloated after any food and drink and it controls my life by making me feel uncomfortable and not confident
Unlike other soluble fibers, Sunfiber does not lead to excess bloating. However, it would not necessarily have any impact on bloating that you may experience from other foods and beverages.
Is this product soy free?
Sunfiber is 100% soy free.
how much water should i add with my si fiber scoop
Any amount is fine, but we typically recommend 6 - 8 ounces of water or your favorite beverage.
I just want to be sure your products are completely dairy free, as I have a dairy allergy
Sunfiber is 100% guar fiber and does not contain any dairy, nor produced on a line that contains any dairy
I just received some fiber, the fiber supplement, the one with the white container and the blue coloring How much is recommended to take each day one scoop or 1 tablespoon?
The recommended serving is one scoop, which is equal to one heaping tablespoon.
I just received my Do I start with the entire scoop or should I ease my way into your product? Maybe 1/2 a scoop?
Hello Irene. Most are able to start with the full scoop. However, it is no problem to start with smaller amounts and ease into the full dosage.
Your subscriptions are for every 30 months? Is it meant to say 30 days?
Subscriptions are available in 30, 60 and 90 day intervals, however, after logging into your account can be changed to any amount of days or months that you like.