Prebiotic Dietary Supplement GI Support Liver/Detox Gluten Free The well-tolerated prebiotic fiber formula in FiberMend stimulates the growth of beneficial bacteria in the GI tract that support a healthy digestive system and balanced GI microbiota. The soluble fiber blend is well tolerated and produces little to no bloating, cramping or gas. FiberMend contains plant-based, water-soluble fiber for a formula that: Mixes easily in water or a preferred beverage Enhances satiety (to keep you feeling fuller, longer) Helps maintain healthy blood sugar levels Is well tolerated: no bloating, cramping, or gas production Promotes regularity and optimal digestive function Doesn’t contain sweeteners Is flavorless and odorless for easy addition to foods/beverages Can be used daily FiberMend combines Sunfiber® – a partially hydrolyzed guar gum fiber – with rice bran, larch arabinogalactan, apple pectin, and green tea phytosome in a water-soluble blend. Sunfiber is a soluble dietary fiber that is easily added to a wide variety of foods, beverages, and supplements. Because it doesn’t change the flavor of the product to which it is added, Sunfiber is an easy way to increase fiber in the diet. Guar gum is a water-soluble carbohydrate derived from the seeds of the guar plant. The guar gum fiber in FiberMend is hydrolyzed, so it dissolves more readily and improves its digestibility without sacrificing fiber content. The result is less bloating, cramping, or gas. Larch arabinogalactan, also an excellent source of fiber, possesses important properties that benefit immune function. Green tea phytosome is a highly absorbable complex of green tea polyphenols and phospholipids that are powerful antioxidants and support healthy prebiotic activity.
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Prebiotic Dietary Supplement GI Support Liver/Detox Gluten Free The well-tolerated prebiotic fiber formula in FiberMend stimulates the growth of beneficial bacteria in the GI tract that support a healthy digestive system and balanced GI microbiota. The soluble fiber blend is well tolerated and produces little to no bloating, cramping or gas. FiberMend contains plant-based, water-soluble fiber for a formula that: Mixes easily in water or a preferred beverage Enhances satiety (to keep you feeling fuller, longer) Helps maintain healthy blood sugar levels Is well tolerated: no bloating, cramping, or gas production Promotes regularity and optimal digestive function Doesn’t contain sweeteners Is flavorless and odorless for easy addition to foods/beverages Can be used daily FiberMend combines Sunfiber® – a partially hydrolyzed guar gum fiber – with rice bran, larch arabinogalactan, apple pectin, and green tea phytosome in a water-soluble blend. Sunfiber is a soluble dietary fiber that is easily added to a wide variety of foods, beverages, and supplements. Because it doesn’t change the flavor of the product to which it is added, Sunfiber is an easy way to increase fiber in the diet. Guar gum is a water-soluble carbohydrate derived from the seeds of the guar plant. The guar gum fiber in FiberMend is hydrolyzed, so it dissolves more readily and improves its digestibility without sacrificing fiber content. The result is less bloating, cramping, or gas. Larch arabinogalactan, also an excellent source of fiber, possesses important properties that benefit immune function. Green tea phytosome is a highly absorbable complex of green tea polyphenols and phospholipids that are powerful antioxidants and support healthy prebiotic activity.
SKU
3-71894
Brand
Thorne
Category
health / supplements / categories / digestion
Variants
1
Customer reviews
5.0
verified purchase
A sophisticated prebiotic fiber blend targeting microbiome diversity and intestinal barrier integrity — both central to my clinical work in gut health. FiberMend combines partially hydrolyzed guar gum and other soluble fibers that are exceptionally well-tolerated, even by clients with IBS or sensitive digestion. Mixes smoothly without clumping or significant texture. An essential tool in any gut restoration protocol.
6/5/2026
5.0
verified purchase
Rapid improvement in physical condition
"After taking Thorne FiberMend, my digestion improved significantly, and bloating reduced. My bowel movements became more regular, and I felt lighter throughout the day. It mixes well without a gritty texture, making it easy to incorporate into my routine."
3/8/2025
5.0
verified purchase
Чудово!
I use this in my morning coffee to add extra fiber to my diet. It dissolves easily and does change the flavor of the coffee. The downside is it's a little too expensive for me for how long it lasted. I would buy again if you either got more in the container or the price was lower.
9/28/2024
5.0
verified purchase
I have always wanted to increase fiber in my diet and this is such a great product to do so! it doesn't make me bloat, unlike some other fibre products. this mixes super easy with coffee, shakes, juices ... just anything! really great quality. it's a little on the pricey side but it is a large tub. will repurchase for sure.
7/4/2023
5.0
verified purchase
excellent
great source of fiber, great brand, thank you iherb XXXXX
2/15/2026
5.0
verified purchase
gut health
This appears to be a high-quality Thorne fiber formula designed for gut health and metabolic support.
Each scoop (11 g) provides 7 g of fiber, mainly from partially hydrolyzed guar gum (Sunfiber®), which is a well-researched, low-bloating prebiotic fiber. It also includes arabinogalactan (from larch) and apple pectin, both supportive for microbiome diversity and immune health. The addition of green tea phytosome (Greenselect®) enhances metabolic and antioxidant support, using a more bioavailable delivery system.
The formula is clean, clinically backed (branded ingredients), and manufactured by Thorne, a reputable company known for high purity standards. With 30 servings per container, it offers a one-month supply and is ideal for improving digestion, stool regularity, gut microbiome balance, and metabolic health without harsh laxative effects.
I’ve been using Thorne’s FiberMend, and it feels like a super clean, gentle way to add fiber to my routine. The blend of soluble fibers supports gut health and helps keep my digestion regular, without triggering bloating or cramps. I like that it’s flavorless, so I can easily mix it into water or coffee. For me, it’s become a subtle but effective daily prebiotic.
11/23/2025
4.0
verified purchase
This works beautifully if digestion needs a little extra support. Taste is nice. Little bit pricy but It’s very gentle and doesn’t cause bloating like some fibers can. I mix it with water or add it to smoothies. After a few days you can really feel everything moving more naturally. I love the clean formula.
11/10/2025
5.0
verified purchase
Excellent quality and fair price. iHerb always delivers great products on time.
