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Celarity Fiber Lean by Celarity
Celarity Fiber Lean by Celarity

Fiber Lean

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Fiber Lean

Highly Pure Fiber Supplement for Satiety, Weight Loss, & Regular Bowel Movements

Looking to shed those extra pounds? Incorporating a fiber supplement into your weight loss journey can be a game-changer. Fiber supplements like Fiber Lean offer a convenient and effective way to boost your weight loss efforts. By promoting feelings of fullness and satiety, fiber helps curb cravings and prevents overeating, making it easier to stick to your calorie goals.

Additionally, fiber aids in regulating blood sugar levels and supporting a healthy metabolism, ensuring that your body efficiently burns calories and taps into stored fat for energy. With its ability to promote regular bowel movements and support digestive health, Fiber Leans ensures that you feel lighter, more energized, and ready to tackle your weight loss goals head-on. Say goodbye to stubborn pounds and hello to a healthier, happier you with the help of the highly pure fiber supplement, Fiber Lean.

What is Fiber Lean?

Fiber Lean is a highly pure, natural soluble fiber called Shimizu Propol® A propolmannan. This fiber has been studied for its viscosity and for its stability through the digestive tract; and studies support its health effects, such as on satiety, weight control, glucose and lipid metabolism, and bowel regularity. Unlike many fiber supplements, Fiber Lean is in easy-to-take vegetarian capsules for a tasteless and convenient way to take your fiber.

Benefits of Fiber Lean

  • Supports Satiety
  • Supports Weight Control
  • Supports Glucose Metabolism
  • Supports Cholesterol Metabolism
  • Supports Healthy Bowel Movements
  • Serves as a Prebiotic for Intestinal Bacteria

How Does Fiber Lean Help Me?

Fiber plays a crucial role in promoting satiety, aiding in weight management, and supporting healthy bowel movements due to its unique properties and effects on the digestive system.

Satiety: One key mechanism through which fiber contributes to satiety is its ability to absorb water and swell in the digestive tract, creating a feeling of fullness and reducing the urge to overeat. This increased bulk also slows down the emptying of the stomach, leading to a longer-lasting sensation of satisfaction after meals. Shimizu Propol® A propolmannan, a specific type of fiber derived from the konjac root, is known for its exceptional water-absorbing capacity, making it particularly effective in promoting satiety when consumed as part of a balanced diet.

Weight Loss: In addition to its satiating effects, fiber contributes to weight management by regulating blood sugar levels and promoting the efficient burning of calories. Soluble fibers like propolmannan form a gel-like substance in the gut, which helps slow down the absorption of sugars and carbohydrates, preventing rapid spikes in blood glucose levels. This stable blood sugar response not only reduces the likelihood of energy crashes and cravings but also supports a more steady release of insulin, a hormone involved in fat storage. By promoting a healthier metabolic environment, fiber indirectly aids in weight management by encouraging the body to use stored fat for energy rather than storing excess calories. Furthermore, fiber-rich foods are often lower in calorie density, allowing individuals to feel satisfied while consuming fewer overall calories, which is beneficial for weight loss and maintenance. Incorporating Fiber Lean into one's diet can therefore be an effective strategy for achieving and maintaining a healthy weight while supporting overall well-being.

Regular Bowel Movements: Fiber plays a crucial role in promoting regular bowel movements by adding bulk to the stool and facilitating its passage through the digestive tract. Fiber Lean can help soften the stool and promote regularity. By absorbing water and increasing the weight and size of the stool, fiber helps stimulate the muscles of the digestive system, encouraging more efficient and regular bowel movements. Including fiber-rich foods in one's diet, along with supplements like Fiber Lean, can therefore support digestive health and alleviate issues related to constipation.

Does not contain:

Wheat, gluten, corn, yeast, soy, animal and dairy products, fish, shellfish, peanuts, tree nuts, egg, ingredients derived from genetically modified organisms (GMOs), artificial colors, artificial sweeteners, and artificial preservatives.

Serving Size: 6 Capsules
Servings Per Container:

Suggested Use: Take 3 to 6 capsules once per day, or take 3 capsules 30 to 60 minutes before each of your two biggest meals, or use as directed by your healthcare professional.

Consult your healthcare professional prior to use. Individuals taking medication, especially hypoglycemic agents, should discuss potential interactions with their healthcare professional. Do not use if tamper seal is damaged.


1. Fiber Research International LLC. Web pages: Propol comparison to different glucomannans, manufacturing, and Propol comparison to other fibers. Published June 2015. Accessed November 20, 2015.

2. Kristensen M, Jensen MG. Dietary fibres in the regulation of appetite and food intake. Importance of viscosity. Appetite. 2011 Feb;56(1):65-70. [PMID: 21115081]

3. 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]

4. 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.  

5. Keithley J, Swanson B. Glucomannan and obesity: a critical review. Altern Ther Health Med. 2005 Nov-Dec;11(6):30-34. [PMID: 16320857]

6. Burton-Freeman B. Dietary fiber and energy regulation. J Nutr. 2000 Feb;130(2S Suppl):272S-75S. [PMID: 10721886]

7. 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]

8. Biancardi G, Palmiero L, Ghirardi PE. Glucomannan in the treatment of overweight patients with osteoarthritis. Curr Ther Res. 1989;46:908-12. 

9. Reffo GC, Ghirardi PE, Foranttini C. Glucomannan in hypertensive outpatients: pilot clinical trial. Curr Ther Res. 1988;44(1):22-27. 

10. Salvatoni A, Bosetti G, Gambarini G. Lipid profile and excess body weight in obese children: effect of a dietary drug supplement (glucomannan vs detastranum). Ped Oggi. 1991;11:243-45.  

11. 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]

12. 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]

13. 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]

14. Vuksan V, Jenkins DJ, Spadafora P, et al. Konjac-mannan (glucomannan) improves glycemia and other associated risk factors for coronary heart disease in type 2 diabetes. A randomized controlled metabolic trial. Diabetes Care. 1999 Jun;22(6):913-19. [PMID: 10372241]

15. Marzio L, Del Bianco R, Donne MD, et al. Mouth-to-cecum transit time in patients affected by chronic constipation: effect of glucomannan. Am J Gastroenterol. 1989 Aug;84(8):888-91. [PMID: 2547312]

16. Passaretti S, Franzoni M, Comin U, et al. Action of glucomannans on complaints in patients affected with chronic constipation: a multicentric clinical evaluation. Ital J Gastroenterol. 1991 Sep-Oct;23(7):421-25. [PMID: 1742540]

17. Chen HL, Cheng HC, Wu WT, et al. Supplementation of konjac glucomannan into a low-fiber 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] 

18. Marsicano LJ, Berrizbeitia ML, Mondelo A. Use of glucomannan dietary fiber in changes in intestinal habit [in Spanish]. G E N. 1995 Jan-Mar;49(1):7-14. [PMID: 8566676]

Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.