Your Cart is Empty
But it doesn't have to be.
Continue Shopping.
Added to Cart
Cart Total:
Customers Also Bought:

Thorne Research, Medibulk, 8.15 oz (231 g)

Thorne Research, Medibulk, 8.15 oz (231 g)

Earn 5% Loyalty Credit ?
Our Price:
Shipping Saver ?
You Save:
$0.01 (0)

Sorry, this product is no longer in stock.

In Stock
  • Expiration Date: May 2018
  • Shipping Weight:
    0.77 lbs
    Switch to Metric units
  • Product Code: THR-62101
  • UPC Code: 693749621010
  • Package Quantity: 8.15 oz (231 g)
  • Dimensions:
    3.6 x 3.6 x 3.7 in, 0.65 lbs
    Switch to Metric units
Bundle Offer
Save $4.00 when you purchase these items today for only $21.84
Total: $25.84
Combo Discount: - $4.00
Together: $21.84

Sorry, this product is no longer in stock.

Product Overview


  • New and Improved!
  • Provides Important Fiber for a Healthy GI Tract
  • Enhances Production of Short-Chain Fatty Acids to Promote a Healthy GI Tract
  • Helps Maintain Already Normal Cholesterol and Blood Sugar Levels
  • Psyllium-Free
  • Contains Inulin – A Good Prebiotic Fiber Source
  • Convenient Powder for Ease of Mixing
  • Dietary Supplement

The Importance of Soluble Fiber

Soluble fiber will dissolve in liquid – inside or outside the body – but it is not metabolized by the body. Nevertheless, soluble fiber is important for optimum digestion because it helps supply food for the beneficial bacteria that live in the digestive tract. Inulin has been shown in numerous studies to promote the growth of these beneficial microorganisms, allowing them to crowd out detrimental organisms such as E. coli. Benefits of a positive change in digestive micro‑flora include improved immune function and general digestive health. Inulin, apple pectin, and prune powder are excellent sources of soluble fiber.

The Importance of Insoluble Fiber

Regular consumption of insoluble fiber is important for optimal digestive health because it promotes a natural laxative effect by adding bulk to the diet, helping prevent constipation. Because insoluble fiber does not dissolve in water it passes through the GI tract relatively intact, speeding up the passage of food and waste through the gut. Oat fiber is an excellent source of insoluble fiber.

Prior to embarking on a detoxification program it is important to achieve optimal bowel function. MediBulk can speed transit time in the bowel and bind toxins released into the intestines from the liver, preventing their reabsorption.

Suggested Use

Mix 1 level scoop with 8 oz of water one to three times daily or as recommended by your health-care practitioner. Follow with at least 8 oz of water.

Other Ingredients

This product is unflavored and unsweetened.


Tamper Evident: Use only if bottle is sealed.

If pregnant, consult your health-care practitioner before using this product.

Store tightly sealed in a cool, dry place.

Supplement Facts
Serving Size: One Level Scoop (11 g)
Serving Per Container: 21
Each Level Scoop (11 g) Contains: Amount Per Serving % DV
Calories 35  
Total Carbohydrate 8 g 3%*
Dietary Fiber 8 g 37%*
Proprietary Blend 11 g  
Inulin (from Agave) (Agave tequilana)   **
Oat Fiber powder (seed) (Avena sativa)   **
Prune Powder (fruit) (Prunus domestica)   **
Pectin (from Apple)   **
* Percent Daily Values are based on a 2,000 calorie diet.
** Daily Value (DV) not established.
iHerb Customer Reviews

HypoAllergenic. Multiple Fibers = Multiple Benefits. ★ ★ ★ ★ ★

Posted by Sickness-ELIMINATOR on Feb 26, 2015 | Verified Purchase

Different fibers have different benefits, and this is a great combo: Apple, Prune, Oat and Inulin. Mixes well. Psyllium FREE. Inhaled Psyllium is very bad for people who have asthma or allergies. Thorne fibers are safe to inhale. Psyllium comes from India, would you trust that country? //Click YES if I was of any benefit.

Was this review helpful to you?

Thanks for your feedback!

Using in conjunction with JJ Virgin diet

Posted by Reviewer2353221 on Oct 27, 2013 | Verified Purchase

Love the JJ Virgin diet. I have lost and kept off 10 lbs since beginning of September.

Was this review helpful to you?

Thanks for your feedback!

Great fiber supplement!

Posted by Reviewer1794033 on Aug 15, 2013 | Verified Purchase

I have a j-pouch and bulking fiber is my friend :) I've tried all the fibers out there: acacia, apple pectin, apple fiber, glucomannan, chia, flax, psyllium powder and whole husk, etc...and MediBulk is awesome. Taking just psyllium is very difficult for me but the combo of apple pectin, prune and psyllium is magic. Mix this will a little slippery elm bark and it's even better. Great taste as well. Don't let the price discourage you, this portion last a long time. When I have a choice, I always order Thorne products. They are VERY High Quality. Their GI-Encap is great too.

Was this review helpful to you?

Thanks for your feedback!

Great taste and work well!

Posted by Reviewer3272543 on Feb 14, 2013 | Verified Purchase

I mix mine with a little juice, very pleasant tasting. It works great for staying regular and general bowel health.

Was this review helpful to you?

Thanks for your feedback!

Gets the job done.

Posted by Reviewer1332766 on Sep 06, 2012 | Verified Purchase

This mixes very well and takes on the flavor of what ever you mix it with.

Was this review helpful to you?

Thanks for your feedback!