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Get to know this Super Fiber - Glucomannan

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b2ap3_thumbnail_Shop_17FiberCapsules.jpgGlucomannan is a “Super Fiber” that has been shown to reduce appetite, aid in weight loss, lower cholesterol and blood sugars, and relieve constipation.*

Glucomannan is an ancient fiber that comes from the Asian elephant yam, also known as Amorphophallus konjac. This soluble fiber is one of the most viscous dietary fibers known - it can absorb up to 50 times its weight in water.


When combined with water, glucomannan forms a viscous gel-like substance that slows digestion, delays the emptying of food from the stomach into the small intestine, slows down the influx of carbohydrates and fats into the bloodstream, binds to bile acids, and impedes dietary fat absorption.* [1,2]  Studies suggest that glucomannan supplementation significantly reduces weight at doses of 3 g/d to 4 g/d when compared to placebo. [1-7]

Bottom line: When combined with water, Glucomannan expands in your stomach, helping to reduce hunger and promote weight loss.*


Soluble fiber slows the absorption of carbohydrates, which influences the release of insulin and the rate of fat storage. Glucomannan studies have not only demonstrated a positive impact on postprandial glucose handling and glucose metabolism but also on cholesterol metabolism.* [1-4,7-9]

Bottom line: When combined with food, studies show that Glucommanan can lower blood sugars and cholesterol.*


Glucomannan not only allows more water to remain in the stool, thereby making waste softer, larger, and easier to pass through the intestines, but it is also an excellent prebiotic. In a placebo-controlled, randomized, parallel, double-blind, crossover trial, doses of 3 g/d and 4 g/d of glucomannan had a positive impact on bowel regularity when compared to placebo. [10] Glucomannan has also been shown to increased the fecal concentration of lactobacilli as well as the daily output of bifidobacteria, lactobacilli, and total bacteria. In addition, fermentation of glucomannan resulted in greater fecal concentrations of short-chain fatty acids and lower fecal pH.*[11]

Bottom line: Glucomannan promotes regular bowel movements and the growth of more "good bacteria" in your gut.*


b2ap3_thumbnail_Shop_17FiberLean.jpgFIBER LEAN
features Shimizu Propol® A propolmannan - a konjac-derived glucomannan using proprietary processing techniques that allow the fiber to maintain high viscosity yet remain stable through the digestive tract.
  • Supports Appetite and Weight Control* 
  • Supports Glucose and Cholesterol Metabolism* 
  • Supports Healthy Bowel Movements* 
  • Serves as a Prebiotic for Intestinal Bacteria* 
When taken with adequate amounts of water, Fiber Lean expands in the stomach, creating a viscous “gel-like” substance which promotes a sense of fullness, slows the rate at which food enters your bloodstream and increases the speed at which food exits the body through the digestive tract (pushing more calories out through the colon, rather than letting them be absorbed). Fiber Lean binds and quickly eliminates toxins from the gut.*
  • Take 30-60 minutes before a meal to feel full with reduced portion sizes*
  • Take prior to heading out to a party/event to reduce cravings and temptation*

Fiber Lean comes in both powder and capsule form.  
Visit our Downtown Petoskey office for a free Fiber Lean sample, 

or visit our online store to buy online.

1. Walsh DE, Yaghoubian V, Behforooz A. Effect of glucomannan on obese patients: a clinical study. Int J Obes. 1984;8(4):289-93. [PMID: 6096282]
2. Doi K, Nakamura T, Aoyama N, et al. Metabolic and nutritional effects of long- term use of glucomannan in the treatment of obese diabetics. In: Oomura Y, Tarue S, Inoue S, Shimazu T, eds. Progress in Obesity Research 1990. London: John Libbey; 1991:507-14. [on file]
3. Kaats GR, Bagchi D, Preuss HG. Konjac glucomannan dietary supplementation causes significant fat loss in compliant overweight adults. J Am Coll Nutr. 2015 Oct 22:1-7. [PMID: 26492494] 4. Biancardi G, Palmiero L, Ghirardi PE. Glucomannan in the treatment of overweight patients with osteoarthritis. Curr Ther Res. 1989;46:908-12. [on file]
5. Reffo GC, Ghirardi PE, Foranttini C. Glucomannan in hypertensive outpatients: pilot clinical trial. Curr Ther Res. 1988;44(1):22-27. [on file]
6. Salvatoni A, Bosetti G, Gambarini G. Lipid pro le and excess body weight in obese children: effect of a dietary drug supplement (glucomannan vs detastranum). Ped Oggi. 1991;11:243-45. [on file]
7. Kraemer WJ, Vingren JL, Silvestre R, et al. Effect of adding exercise to a diet containing glucomannan. Metabolism. 2007 Aug; 56(8):1149-58. [PMID: 17618964]
8. Hopman WP, Houben PG, Speth PA, et al. Glucomannan prevents postprandial hypoglycaemia in patients with previous gastric surgery. Gut. 1988;29(7):930- 34. [PMID: 2840365]
9. Vita PM, Restelli A, Caspani P, et al. Chronic use of glucomannan in the dietary treatment of severe obesity [in Italian]. Minerva Med. 1992 Mar;83(3):135-39. [PMID: 1313163]
10. Marsicano LJ, Berrizbeitia ML, Mondelo A. Use of glucomannan dietary ber in changes in intestinal habit [in Spanish]. G E N. 1995 Jan-Mar;49(1):7-14. [PMID: 8566676]
11. Chen HL, Cheng HC, Wu WT, et al. Supplementation of konjac glucomannan into a low- ber Chinese diet promoted bowel movement and improved colonic ecology in constipated adults: a placebo-controlled, diet-controlled trial. J Am Coll Nutr. 2008 Feb;27(1):102-08. [PMID: 18460488]

Consult your healthcare practitioner prior to use. Individuals taking medication, especially hypoglycemic agents, should discuss potential interactions with their healthcare practitioner. Do not take Fiber Lean at the same time as medication as it may reduce medication absorption.

*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.

Carin Nielsen, MD Integrative Medicine I use an Integrative/Functional Medicine approach with my patients to treat a variety of chronic medical conditions, including many that are linked to unhealthy eating habits and lifestyle patterns Treating symptoms simply by prescribing medication as a “band-aid” does not address the underlying factors that contributed your problems in the first place, and is not likely to provide lasting results. My approach involves getting "under the surface” to find and correct underlying imbalances. If you are interested in learning more or if you would like to schedule a consultation, please contact our office This email address is being protected from spambots. You need JavaScript enabled to view it. or 231-638-5585.