No bloating
"My doctor prescribed this to replace the fiber supplements I was taking. It's easy to take and doesn't cause gas pains."












Sunfiber® is an all-natural, regulating soluble dietary fiber derived from the guar bean. It acts as a prebiotic, helping support beneficial gut bacteria and overall digestive health.*
Insoluble fiber adds bulk to stool and is commonly found in grains, nuts, seeds, and fruit skins. Soluble fiber dissolves in water and supports digestion, feeds beneficial bacteria, helps moderate glucose levels, supports cholesterol management, and promotes satiety.* Some soluble fibers ferment too quickly, which can cause gas, bloating, or diarrhea. Sunfiber® is a low-FODMAP soluble fiber that supports digestive health without these side effects.*
Prebiotics are fibers that serve as food for probiotics. The right prebiotic fiber must be gentle and well-tolerated. Sunfiber® ferments steadily, producing beneficial short-chain fatty acids (SCFAs) over time without causing uncomfortable gas or bloating.*
Yes. Sunfiber® is a prebiotic fiber that produces SCFAs through fermentation in the gut. Unlike rapidly fermenting fibers such as inulin, Sunfiber® ferments at a steady rate, resulting in improved tolerance and less digestive discomfort.*
SCFAs are compounds produced when gut bacteria ferment dietary fiber. The primary SCFAs are acetate, propionate, and butyrate. Butyrate helps fuel the cells lining the colon and supports intestinal health.*
Guar gum is a viscous carbohydrate commonly used as a food thickener. Sunfiber® is a non-viscous form known as partially hydrolyzed guar gum (PHGG). It dissolves completely in liquids and is used as a gentle fiber source in supplements and functional foods.
FODMAPs are certain carbohydrates that are poorly absorbed and may trigger digestive discomfort in some individuals. Sunfiber® is the first prebiotic fiber to receive Low-FODMAP Certification from Monash University, making it suitable for individuals with sensitive digestion.*
Sunfiber® GI is a synbiotic blend of clinically proven prebiotic fiber and probiotics that helps support healthy digestive balance.* It uses the award-winning Sunfiber® brand of soluble dietary fiber and the clinically studied probiotic Bifidobacterium lactis.
The human digestive tract contains trillions of bacteria, many of which are beneficial and known as probiotics. Maintaining a healthy balance of these bacteria is important for digestive and immune health.* Diet, travel, medications, stress, and aging can disrupt this balance, which may lead to digestive discomfort. Supplementing with probiotics helps replenish beneficial bacteria and support overall gut health.*
Each serving of Sunfiber® GI provides 8 billion CFU of Bifidobacterium lactis (B. lactis) at time of manufacture. This well-researched strain is highly resistant to gut pH and bile conditions and has been shown to support digestive and immune function.*
Sunfiber® GI may be taken any time of day, though many people prefer using it in the morning to help support digestion throughout the day. It can be mixed into yogurt, smoothies, oatmeal, or added to water for convenient on-the-go support.
Yes. Each serving contains 6 grams of Sunfiber® prebiotic fiber and 8 billion CFU of B. lactis. Sunfiber® is GRAS (Generally Recognized As Safe) and approved as a fiber source by the FDA, Health Canada, and other regulatory authorities.
One serving provides approximately 5 grams of fiber. The recommended daily fiber intake is 25 grams for women and 38 grams for men. Sunfiber® GI helps bridge the gap between typical dietary intake and recommended fiber levels.
Yes. Sunfiber® GI is 100 percent natural, containing only Sunfiber® (a plant-based fiber) and B. lactis. It contains no preservatives or additives and is Clean Label Project Certified, Non-GMO Project Verified, and gluten free.
Each serving contains 10 calories.
Sunfiber® GI contains highly shelf-stable probiotics. Store in a cool, dry place away from excess light, heat, and moisture. Refrigeration is optional.
At the recommended serving size, side effects such as gas, bloating, or diarrhea are virtually nonexistent.
The recommended intake is 25 grams per day for women and 38 grams per day for men, yet most people consume only 10 to 15 grams daily. Sunfiber® helps close this gap.
Sunfiber® may be taken at any time of day, though many people prefer taking it in the morning to support comfortable digestion throughout the day. It can be mixed into cereal, yogurt, smoothies, or added to water for convenient use.
Sunfiber® and Sunfiber® GI have long been used during pregnancy and lactation, though you should consult your healthcare practitioner before use. Sunfiber® is appropriate for individuals over 9 months of age, with one 6-gram serving typically recommended.
Sunfiber® is stable in hot foods and beverages, but heat may reduce probiotic viability. For best results, add Sunfiber® GI to lukewarm or cool foods and beverages.
Overall rating: 4.8689957 / 5 from 229 reviews.
The Home and Travel Fiber Bundle offers a combination of Sunfiber products for digestive health. Customers appreciate its effectiveness in reducing bloating and gas, with a convenient travel format. While some find the taste mixed, the product is praised for its lack of side effects and high-quality fiber.
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"My doctor prescribed this to replace the fiber supplements I was taking. It's easy to take and doesn't cause gas pains."
"I like this powder over others for several reasons: it's tasteless and dissolves completely. No clumps! Mostly, it's done more for my gut than anything else has."
"Absolutely best fiber that works for me. I've tried many! Simple and easy to blend. Best of all, it helps tremendously with my constipation. It's a must try for anyone suffering with gut issues."
"I love the single serve packs of Sunfiber GI. I add to my morning cold brew. Love that it is tasteless and does not change consistency of food/beverages. Always an added benefit to get the pre and probiotics, too!! I have already recommended to friends and family to try!!"
"Sunfiber is wonderful. It provides the right kind of fiber for my body in an easy to use, no taste way. What could be better?"
"With having gut issues the fiber gi is great. I take it everyday with a glass of water. No side effects."
"While I didn’t feel the affects, I def felt it making my gut being easy on its self. I’ve dealt with horrible gut health but this has helped smooth it"
"This has been the best new product that I have introduced to my routine! I have never felt more regular in my life. . . I used to feel super bloated after eating just about anything but since adding this to my day, I feel so much better."
"These stick packs are now an essential part of traveling/vacationing for me!"
"My digestive issues are a lot better. This is the best fiber supplement I've ever had!"
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