Ingredients
| Product name: | Thorne Fibermend |
| Content: | 330 grams of powder |
| For whom: | Seniors, Athletes, Adults |
Supplement Facts per 11 grams (Serving Size)
| Amount | |
| Guar Fiber, partially hydrolyzed (Sunfiber®) (from Indian guar beans) (fermented) (Cyamopsis tetragonoloba) | 8 g |
| Rice bran | 2,5 g |
| Arabinogalactan (Larix Extract) (ResistAid®) | 300 mg |
| Apple pectin | 100 mg |
| Green Tea extract (Greenselect®) (Phytosome® of Camellia sinensis extract and phosphatidylcholine) | 50 mg |
| Calories | 45 |
| Fats | 1 g |
| Carbohydrates | 9 g |
| Fiber | 7 g |
| - Soluble fiber | 6 g |
Ingredients Fiber, arabinogalactans, green tea extract, phosphatidylcholine (sunflower).
Usage advice
Suggested use
Mix 1 level measuring spoon with 300 ml of water or juice.
Stick to the recommended daily dosage, unless advised otherwise.
A varied, balanced diet and a healthy lifestyle are important. Nutritional supplements are not a substitute for a varied diet.
If you have health issues or are taking medication, always consult your doctor before taking certain supplements. More usage advice.
Storage advice Store in a cool, dry and dark place. Not in the refrigerator.
Keep out of reach of children.
Best by date 330 gram: July 2027
Allergy information / Warnings
| Warnings |
| Maximum dose of EGCG is 800 mg per day. Do not consume on an empty stomach or in combination with other green tea products. Not suitable for children under the age of 18, during pregnancy or breastfeeding |
| Do not take at the same time as any medication. Keep at least 1-2 hours between taking medication and guar bean fiber. |
| This supplement is: |
| Suitable for vegetarians |
| Not suitable for vegans |
Fibermend: prebiotic fiber preparation
FiberMend powder consists of a prebiotic fiber blend containing the patented Sunfiber®, rice bran, arabinogalactan from larch, and apple pectin. It also contains Greenselect® green tea phytosome.
Carefully selected fiber blend
Sunfiber® consists of partially hydrolyzed guar gum fibers. These dissolve quite easily and reduce the risk of bloating, cramps, or gas.
Arabinogalactans extracted from the larch tree are a valuable source of natural polysaccharide fibers.
Rice bran is rich in soluble and insoluble dietary fiber and contains vitamins, minerals, amino acids, and fatty acids.
Pectin, which comes from the cell membranes of apple peel, is also a source of fiber and acts as a prebiotic gelling agent.
Phytosomal green tea
Thorne has added Green Tea Phytosome (Greenselect® from Indena) to the formula to support the prebiotic activity. Green tea is rich in polyphenols and phospholipids, which make it a powerful antioxidant. It also helps with weight management and fat burning*.
Properties
FiberMend mixes easily with water or other beverages
provides a feeling of satiety
is well tolerated (no bloating, cramps, or gas)
promotes regularity and optimal digestion*
contains no sweeteners or other undesirable additives
can be used daily
* Health claim(s) subject to approval by the European Commission.
Thorne Shaker bottle
To properly mix the powder with water, almond milk or any other beverage of your choice, it is best to use a Shaker. We have a nice and sturdy Shaker bottle from Thorne in our assortment. Very convenient on the go as well!
The sturdy cup has a capacity of 600 ml and is made of BPA-free plastic. The screw-on lid has a lockable drinking and pouring spout and the product also contains a (loose) metal blender ball.

Need advice?
Would you like to know more about this product or receive personalized advice from our orthomolecular therapist, Liesbeth?
Then please use our consultation form
Our consultations are free of charge.
Patented ingredients
GreenSelect® and Phytosome® and the logo are registered trademarks of Indena S.p.A.
ResistAid® is a registered trademark of Lonza.
Sunfiber® is a patented ingredient of Taiyo Kagaku Co., Ltd., Japan
Other information
Dietary supplement Fiber supplement
Produced by Thorne Research Inc.
Summerville USA
For Smeets & Graas
G. Meirstraat 11
9728 TB Groningen
050 850 36 88
Last page change
18 maart 2026
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