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Tomorrow's Nutrition

Tomorrow's Nutrition Sunfiber Prebiotic Fiber, Unflavored 30 Servings

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Style: 30 Servings


Features

  • Regulating Fiber: With 6 grams of soluble fiber per serving, Sunfiber helps alleviate both occasional constipation and diarrhea by promoting regular, healthy bowel movements*
  • Gentle On Your System: Sunfiber ferments slowly in the gut, promoting digestive health without excess gas or bloating;* Our gentle, low FODMAP-certified formula is typically well-tolerated by individuals with sensitive stomachs*
  • Enhanced Satiety: Helps slow down gastric transit time for a comfortably full and satiated feeling;* Controls the glycemic index of foods
  • Easy to Use: Dissolves fast and clear in your favorite beverage without altering the taste or texture of foods; Mix with your favorite recipes, drinks, smoothies and more to boost your fiber intake
  • Prebiotics for Gut Health: Our prebiotic-rich formula feeds the probiotics, promoting healthy gut microbiome;* Helps food move through your system at just the right pace, and supports the absorption of essential minerals*

Description

Short Chain Fatty Acids (SCFAs) are produced via fermentation of dietary fiber by the gut microbiome. While some soluble fibers ferment rapidly, leading to excessive bloating and flatulence, Guar Fiber ferments at a gentle pace, promoting a healthy gut without the uncomfortable gas and bloating.* High-fiber foods may trigger gas and bloating in individuals with functional gastrointestinal disorders. Sunfiber, however, is sensitive stomach friendly and very well tolerated, promoting a healthy digestive balance without discomfort.* Sunfiber, 90 Servings SunFiber Packets Sunfiber GI Powder SunTheanine L-Theanine Sunfiber GI 7-Day Sample Why is Sunfiber superior to other fiber supplements? Guar fiber, Sunfiber’s fiber source, helps to normalize both occasional constipation and occasional diarrhea. It also won’t lead to excess gas and bloating, common side effects of other fiber supplements.* When should I take Sunfiber? Sunfiber may be taken at any time of the day but is recommended to take first thing in the morning to get your digestive system on track for a comfortable day ahead. Can Sunfiber be used in cooking? Yes. Sunfiber can be added to recipes for baked goods as well as savory foods without affecting their taste, aroma or texture. It is also an excellent smoothie ingredient. Are there side effects of having too much fiber? People who are unaccustomed to getting sufficient dietary fiber – from food or fiber supplements – may sometimes experience gas, bloating and/or diarrhea. Those side effects are virtually non-existent with Sunfiber at the recommended dosages.*

Product Dimensions ‏ : ‎ 7.3 x 3.7 x 3.7 inches; 10.58 ounces


Item model number ‏ : ‎ 4000


Department ‏ : ‎ Adults


Date First Available ‏ : ‎ November 27, 2013


Manufacturer ‏ : ‎ Tomorrow's Nutrition


Best Sellers Rank: #1,167 in Health & Household (See Top 100 in Health & Household) #10 in Dietary Fiber Nutritional Supplements


#10 in Dietary Fiber Nutritional Supplements:


Customer Reviews: 4.5 4.5 out of 5 stars (3,769)


Brand Name: Tomorrow's Nutrition


Primary Supplement Type: Digestive Health, Fiber, Gut Health, Prebiotic, SunFiber


Item Form: Powder


Diet Type: Gluten Free, Vegan


Product Benefits: Digestive Health Support


Age Range Description: Adult


Container Type: Canister


Dosage Form: Powder


Supplement Formulation: Individual Supplement


UPC: 794168563827 850236004026


Item Highlight: Low FODMAP dietary supplement with gluten free formula for gut health support and daily digestive comfort support


Manufacturer: Tomorrow's Nutrition


Model Number: 4000


Manufacturer Part Number: TN4010


Unit Count: 7.36 Ounce


Item Dimensions: 7.3 x 3.7 x 3.7 inches


Number of Items: 1


Total Servings Per Container: 30


Flavor: Unflavored


Special Ingredients: Low FODMAP, Partially Hydrolyzed Guar Gum, SunFiber


Material Features: GMO Free, Gluten Free, Vegan


Specific Uses For Product: Bowel Movement Support, Constipation Relief, Diarrhea Relief, Digestive Health Support, Glycemic Control, Gut Health, Mineral Absorption, Prebiotic Support, Regularity, Satiety


Allergen Information: Gluten Free


Color: White


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 18 – Sep 19

This item is non-returnable:

Non-returnable due to Food safety reasons

View our full returns policy here.

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Top Amazon Reviews

    • Sunfiber is a great, natural product supporting good gut health
Style: 90 Servings
I've been using Sunfiber consistently for about 2 years. It works great and supports my daily fiber required. You do have to add the powder before adding liquid and then stir constantly until completely dissolved. This is no different than other powdered fiber supplements. It does dissolve easily. Has no flavor so it can be used in a variety of liquids. It also helps to make sure you are drinking your daily 64 oz. of liquid intake. I really like this natural alternative. Supports my gut health. Pricing may be a little more expensive but it is worth it. I definitely can recommend. ... show more
Reviewed in the United States on July 21, 2026 by C
    • My every day go-to
Style: 90 Servings
I’ve been using this every day for a couple of years now. It has kept my gut much happier as a lot of raw veggies do a number on my gut. Luckily it actually has no flavor and dissolves almost immediately so I can add it to any of my drinks. The only downside is that it can make certain drinks taste/feel softer(?). That’s the easiest way to describe it. My top ways to drink it is with my chocolate protein shake in the morning or hot chocolate in the evening. It makes it feel smoother and more rich when mixed with chocolate drinks. Highly recommend. ... show more
Reviewed in the United States on August 8, 2026 by Demetrius
    • No joke- Gamechanger for digestion and stomach sounds
Style: 30 Servings
My stomach for most of my life makes very loud sounds. This has completely stopped it! Dissolves clear with zero taste or thickness. I can add it to water and drink it. I’ve gotten to where if the texture is slightly thick or taste is odd- no matter how healthy I know it is for me I won’t drink it. I’ve stopped drinking protein powders because of odd after tastes. SunFiber literally does not change texture or taste or thickness. It’s the only thing I’ve been able to do consistently in my morning coffee. The small container lasted just over a month because I take it twice a day some days. It has stopped my stomach pains and constipation. I bought this bottle on a trial run, and I love it!! It mixes very easily, dissolves completely, and think it’s one of the best supplements with real results I’ve started in quite sometime! And I try a ton of supplements! ... show more
Reviewed in the United States on August 26, 2026 by Abigail Crain
    • One of the best products out there!
Style: 30 Servings
This is a great product. I have tried lots of fiber supplements and found this one to be the best. It dissolves quickly in water, has no clumps left in the glass, has no odor, and is flavorless. Most importantly, it gets things moving within a day or two, then keeps on working beyond that! Its a bit pricey, but well worth it. I highly recommend this product! ... show more
Reviewed in the United States on July 12, 2026 by Fran C.
    • Product is fine, container seal needs some attention
Style: 30 Servings
I had c diff and decided i would use this product to support my gut. I had a lot of gas at first but things normalized after a couple days. I found it helpful in regulating consistency. It didn’t change colon sensitivity for me. Did it change the gut into a more favorable butyrate producing environment? Probably but obviously I can’t prove that. This will create unusually smooth stools, i suspect artificially smooth due to the properties of the gel. It will also lighten the color a shade. It does not speed transit the way psyllium husk does for me. Psyllium husk creates stools with “ant tunnels”, But generally speaking this does not. This will give the platonic ideal of a Bristol 4 stool provided your gut is in a position to do that. As for mixing, you have to stir the liquid continuously before you start pouring the powder in and you can’t just dump the scoop in all at once. There’s no way around this, it’s just the properties of phgg. It will mix clear with enough stirring. It’s mostly tasteless if not very very faintly sweet. The seal on the package is hit or miss. I had one with a great seal, one where half the seal wasn’t sealed at all, and another where it was sealed but it was a bit too easy to lift off. Still. It was intact. The product itself i give 5 stars. The container seal i give 3 stars. I got a refund on the container with the not intact seal so I’m happy about that. I didn’t have to return it so i tossed it. Overall i give 4 stars for this product. I think people should know this is just not the easiest stuff to mix but that’s not necessarily a manufacturer issue. It is definitely doing something in the gut, visually this is obvious. Whether it truly helps i cannot say, but i can say it seemed to gently help with constipation. ... show more
Reviewed in the United States on May 13, 2026 by Various Vogue
    • Gentle on sensitive digestive system
Style: 90 Servings
Nice alternative if you suffer with intestinal issues or eating FODMAP. It took some time, but I have noticed improvement with the bloating. It dissolves great in my morning coffee- just stir well. I haven't noticed any off flavor or texture because of it in my coffee. Can't speak to adding it to cold beverages or water. ... show more
Reviewed in the United States on September 1, 2026 by LMT
    • Fiber Supplement Perfection
Style: 30 Servings
Love love love this! It's so easy to take and I feel a difference when I skip a day. It's helped to regulate my IBS-D symptoms without the usual fiber bloat. Love that it disinfectant l disorganized l dissolves completely. I just drink it with a glass of cool water and it's smooth. There is a slight nutty taste but I kinda like it. Signed up for auto ship so I don't run out. ... show more
Reviewed in the United States on February 4, 2026 by DoodleLove
    • Great stuff!
Style: 30 Servings
I was concerned this fiber would be slimy or slick. It was fine in everything I have mixed it in so far and is tasteless. It's in my electrolyte drink, my protein yogurt, my almond milk. Everything mixes fast and completely. Def going to keep buying this! Helps me meet weight watchers fiber goal.
Reviewed in the United States on July 11, 2026 by carlomom

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