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PGX & Glucomannan: Dr. Oz’s Best Weight Loss Ingredient as mentioned on his show!


Glucomannan – Also Known as Konjac Mannan Root; as found in PGX

Soluble fibers such as Glucommannan and Konjac Root fibers offer many health-promoting benefits through their ability to form a soft gel with water. Research indicates that soluble fibers help lower blood cholesterol, slow glucose absorption, lowers the Glycemic index and promote regular bowel movements. While found in many sources such as fruits, vegetables, oats, and beans, the most-promising soluble fiber may come from Glucomannan. Derived from konjac root, glucomannan has an extraordinary water-holding capacity and is the most viscous of all known dietary fibers.

Glucomannan offers benefits for those seeking to lose weight. Studies show that supplementing with glucomannan enhances the weight-loss effects of a calorie-restricted diet. Glucomannan may promote weight loss in obese adults, even in the absence of a calorie-restricted diet. When obese adults consumed 1 gram of glucomannan fiber one hour before each meal for eight weeks, they lost an average of 5.5 pounds of body weight—with no other changes to their eating or exercise patterns.

Glucomannan creates a feeling of satiety or fullness through its water-binding effects. By creating a thick gel, glucomannan delays gastric emptying and slows the release of sugar into the bloodstream, which helps to lower levels of insulin and blood glucose. Additionally, glucomannan improves blood-lipid profiles and can lower systolic blood pressure. Because of these effects, glucomannan can greatly benefit individuals with metabolic syndrome or diabetes.

The Importance of Supplementing with Glucomannan Fiber

The average American currently consumes only 12-17 grams of fiber a day from dietary sources, far below the 20-35 grams recommended by the American Dietetic Association and the 30 grams or more suggested by both the American Heart Association and the National Cancer Institute.

Since many people do not want to change or cannot change their diets, supplements and natural fiber products can help them benefit from fiber’s many beneficial effects. Supplemental fiber products can provide optimal combinations and amounts of fiber, as well as complementary nutrients such as calcium. Incorporating increased fiber intake into a daily plan for healthy living can help you lower your risk of heart attack and cancer, as well as prevent or manage such common conditions as hypertension and diabetes mellitus. Moreover, fiber is a valuable tool in achieving optimal weight.

With increased fiber intake, some people may experience gastrointestinal discomfort or changes such as increased or loose bowel movements. This is simply the body’s period of adjustment to the introduction of greater amounts of dietary fiber. Medical professionals recommend adding fiber to the diet gradually until the body adjusts. Moreover, because soluble fibers form a gel with water, it is important to drink plenty of water with fiber supplements. Abundant water intake will help to optimize fiber’s actions in the body and prevent ill effects such as dehydration or constipation.

Glucomannan reduces blood fats, discourages weight gain, helps to keep blood sugar levels normal, and relieves constipation. When ingested, it takes on a jelly-like consistency and expands to make the stomach feel full. People are therefore sated more quickly and are less likely to overeat, according to results of trials in which obese patients were put on calorie-restricted diets and glucomannan. In addition, like most food fiber, glucomannan acts as a bulking agent in the colon, which stimulates peristalsis (the muscular movement that causes bowel evacuation).

Glucomannan Clinical Research Studies

Clinical studies confirm that glucomannan in konjac tubers lowers cholesterol—both total cholesterol and low-density lipoprotein (LDL) cholesterol—without affecting diastolic blood pressure.

In one double-blind trial, ten days of treatment with Konjac root Glucomannan returned the bowel habits of patients with chronic constipation to normal. Another study showed that patients given either 3 or 4 grams daily noted an average increase of three and six more bowel movements per week, respectively, without additional diarrhea or flatulence.

Konjac glucomannan helped to keep glucose at optimal levels in baboon blood, suggesting that it may help control glucose levels in diabetics. A recent study indicates that this is likely to be true: When used along with conventional treatment, Konjac root glucomannan fiber not only helped normalize and maintain blood sugar levels in patients with type 2 diabetes, it also lowered both cholesterol and systolic blood pressure.

Studies on diabetic rats indicate that long-term supplementation with konjac glucomannan may help prevent heart attacks and strokes in people who have diabetes. In diabetic rats put on diets high in cholesterol, glucomannan prevented the formation of aortal plaques, deposits that increase heart disease risk. Glucomannan may do this in humans, too, by reducing LDL cholesterol and blood sugar levels.

Like many soluble fibers, glucomannan can bind with a variety of substances in the digestive tract to slow digestion, relieve constipation and reduce the absorption of fat and carbohydrates. As such, glucomannan is often used in products intended to reduce blood cholesterol and triglyceride levels as well as blood sugar. Because it can absorb a great deal of water and promote a feeling of fullness, glucomannan is frequently used in supplements intended to promote weight loss.

Glucomannan Safety and Side Effects

Like other soluble fibers, glucomannan has the potential to bind with and reduce the absorption of certain nutrients – so a daily multivitamin supplement may be advisable for individuals consuming high doses of glucomannan on a regular basis. In high doses, glucomannan may lead to diarrhea, bloating and flatulence – but cutting back the dose relieves these unpleasant side effects, or consider the PGX with Smooth Digest-a product that aids in the breakdown and reduces gas and bloating.

PGX (PolyGlycopleX) is a non-starch polysaccharide (fiber) from glucomannan that has a very high water-absorbing capacity. When used with meals, PGX absorbs significant amounts of water, increasing the volume of the food you eat, quickly making you feel full, even when your food portions are smaller. Therefore, it is important to drink plenty of water when using PGX.

This prolongs the after-meal sense of fullness helps normalize blood sugar levels and insulin secretion. By leveling out your sugar absorption, you can eliminate the “blood sugar roller coaster” – when food intake causes excess insulin to be secreted, later causing you to feel hungry due to blood sugar dropping, which then causes you to consume more food, which then causes more insulin secretion, etc. These ups and downs in blood sugar are hard on your body and make it very difficult to lose weight. PGX also increases food viscosity (its gel-like quality), which slows the rate that food is digested and absorbed.

Glucomannan/PGX  offers benefits for those seeking to lose weight. Studies show that supplementing with glucomannan enhances the weight-loss effects of a calorie-restricted diet. It may promote weight loss in obese adults, even in the absence of a calorie-restricted diet. When obese adults consumed glucomannan fiber/ 3 PGX capsules one hour before each meal for eight weeks, they lost an average of 5.5 pounds of body weight—with no other changes to their eating or exercise patterns.

Ongoing research and development involving PGX has led to the development of the PGX Daily Ultra Matrix soft gel – an advanced delivery system for superior results. The Ultra Matrix technology involves suspending PGX in an MCT-rich oil matrix (medium-chain triglycerides) derived from purified coconut oil. This matrix, when combined with stomach acid, disperses better than any other tested delivery system for soluble or insoluble fiber, including previous forms of PGX. Rapid dispersal substantially increases the potential of PGX Daily as the polysaccharides quickly attract water and thicken quickly providing a profound sense of fullness. This effect is referred to as “acid-induced viscosity” and it begins within minutes of ingesting PGX Daily. For more information visit pgx.com


  • Normalizing and stabilizing blood sugar
  • Lowering insulin secretion
  • Improving insulin sensitivity
  • Lowering after-meal blood sugar levels
  • Reducing the glycemic index of meals
  • Controlling appetite for healthy weight loss
  • Burning body fat
  • Balancing cholesterol and reducing triglycerides
  • Improving regularity


Each soft gel contains:
PGX (PolyGlycopleX®)……………………………………………. 750 mg
Medium-chain triglycerides ………………………………………… 600 mg

Clinical Research

This product has been clinically tested for efficacy and safety, for research abstracts please visit http://www.naturalfactors.com/ca/en/news/show/54/pgx-research-studies-published






Posted on January 19,2011
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  1. Janet D. Jones

    I have high cholesterol and I take fish oil tablets, if I start taking Konjac Root do I stop taking the fish oil tablets? Thank you.

    Jun 10,2011 @ 11:37 am

  2. Janet D. Jones

    I have high cholesterol and I take fish oil tablets, if I take Konjac Root tablets do I stop taking the fish oil tablets. Thank you

    Jun 10,2011 @ 11:41 am

  3. Chantelle

    Hello Janet, no I would stay on the fish oil along with the PGX. They are both great products for cholesterol and work in different ways. The fish oil also helps increase good cholesterol and is healthy for basicaly every cell in your body. While PGX helps eliminate bad cholesterol and balance blood sugars. Together they make a great team!

    Jun 14,2011 @ 9:34 am

  4. Anne Cook

    I have ulcerative colitus. Will Konjac Root affect this condition. Needless to say I wouldn’t want to inflame this disease that has not had a flare up in 20 years.

    Jun 15,2011 @ 8:24 am

  5. Chantelle

    Hello Anne, Since konjac is a soluble fiber it should not cause any irritation. The product I would recommend is the PGX ultra matrix with the digestive aid in it. Always start slow with one capsule with each meal and work your way up from there. I hope this is helpful, thank you for the question.

    Jun 16,2011 @ 11:29 am

  6. Bria

    Dr. OZ:
    What about those who are Type-2 Diabetics? Can we take this supplement along with diabetes medications?

    Jun 22,2011 @ 12:24 pm

  7. Chantelle

    Thanks for the question Bria. Definitely! This is the PERFECT product for those with Type II Diabetes. It helps with blood sugar, eating less and cholesterol control. When taking any prescription medications you want to take them about one hour away from PGX. (Only reason is the fiber can slow the absorption of your medication)

    Jun 22,2011 @ 12:46 pm

  8. sheila zepeda

    where can i purchase PGX?

    Jun 28,2011 @ 1:58 pm

  9. Chantelle

    If you are in North America, right on this website from our mail order department. Click on the SHOP tab and start or give them a call 1-800-406-6646. Thank You!

    Jun 29,2011 @ 2:43 pm

  10. Christine

    I am 49 years old,have high blood pressure,and I’m 180 pounds. I’ve tried losing weight but it’s very hard. I heard about the konjah root but I don’t have a health food store anywhere close by. Is there another name for it that I can find in the vitamin section?

    Jul 1,2011 @ 5:30 am

  11. shelley roberts

    is this pgx daily soft gels ultra matrix ,safe to take wiht heart medications. i had a heart attack in 2009 and take plavix,lipitor and lisenopril, i am eagerly waiting to go on these for more weight loss. thanks shelley

    Jul 6,2011 @ 8:18 am

  12. Chantelle

    Hello Shelly, yes the PGX is super safe to take with heart medication and will also help with cholesterol along with the weight loss benefits. As will any medication, just take it about an hour away from the PGX and you will be fine. The only reason for this is because the fiber in the capsules can slow the release of your prescriptions. Thanks again Shelly!

    Jul 6,2011 @ 9:35 am

  13. Chantelle

    Hello Christine. Weight loss is challenge for so many, but honestly we have had such great feedback on the product for controlling appetite, blood sugar, stopping craving, regulating bowel movements and even helping with cholesterol. Try looking for PGX from webber, natural factors or even go4trim from genuine health. If you live within North America we also offer mail order, just go to our home page and click on shop or give us a call at 1-800-406-6646.

    Jul 6,2011 @ 9:39 am


    Jul 7,2011 @ 9:12 am

  15. Chantelle

    Hello just to be clear, this website is in no way affiliated with the Dr.OZ Show…we are a heath food retailer in BC Canada. However, we do have the answer for you! PGX or Konjac fiber can be taken indefinitely as it is a great source of dietary fiber, even when not being used a weight loss aid. When taken as directed with each meal then it works as a weight loss aid, by keeping you full longer, stabilizing blood sugar and even helping with cholesterol. Because of this, it decreases your intake of food, and cravings. …

    Jul 12,2011 @ 9:28 am

  16. Carol Van Wagner

    Does the use of this product affect the kidneys as I have had kidney problems and they are functioning at about 50%?

    Jan 22,2012 @ 11:19 pm

  17. Chantelle

    This product is simply fiber based and does not contain any herbs that could stimulate the kidney. However with that being said; with increased fiber comes the need for increased fluid consumption which would involve the kidneys. I would check with your doctor before starting any new supplements.
    Thank you.

    Jan 23,2012 @ 10:42 am

  18. ros

    I m 42 y/o and was diagnosed as premenepousal and im taking estrace and prometrium. I been taking pgx for 3 months and I loose 10lbs and want to loose 10lbs more. Is there a side effect of this medicine plus I’m taking magnesium vit e vit d caltrate plus

    Feb 15,2012 @ 9:41 pm

  19. Chantelle

    Hello, No there is no side effect with PGX since it is not a medication it is a fiber and coconut oil mixture. It is safe to take ongoing and everyday if you wished to. Than you for your replay!

    Feb 16,2012 @ 1:37 pm

  20. Natalie

    I am on Lipitor, can i still take PGX

    Feb 16,2012 @ 7:14 pm

  21. Chantelle

    Yes you can, just take PGX about half an hour away form medication. PGX actually aids in cholesterol management.

    Feb 17,2012 @ 5:31 pm

  22. Laura

    Is there a significant difference between PGX and plain glucomannan or konjac as far as effectiveness? I read that PGX is a “propietary blend” but similar supplements are more cost-effective.

    Mar 29,2012 @ 1:32 pm

  23. Chantelle

    PGX is konjac root, PGX daily however is a mix of the fiber with coconut oil adding much more effectiveness to the product. But konjac is essentially the foundation of PGX.

    Mar 29,2012 @ 2:40 pm

  24. Sophia

    is there any problem if I take PG X daily ultra matrix softgels and also rasberry ketone as a treatment together?

    Apr 8,2012 @ 6:22 pm

  25. Chantelle

    Hello Sophia, Since both product are food sourced and working differently they make a great pair!

    Apr 9,2012 @ 9:52 am

  26. neha

    Hi there I want to know is this pgx safe as I’m trying for pregnancy n I’m BP pills as well my Dr told me to loose some wait but its really very hard can u mail me at this address thank u waiting for reply

    Apr 15,2012 @ 4:04 am

  27. Chantelle

    Hello Neha,
    This a response to your question regarding PGX and pregnancy. As will all natural products there is the warning to not take if pregnant or breastfeeding, because there has never been any studies done on women who are pregnant or nursing. However, PGX is a food sourced product containing only fiber and coconut oil. It is recommended to take it an hour away from any medication or other supplements. The only thing when starting PGX is that you may have some gas and bloating until your system adjusts to the fiber levels, to minimize this it is recommended to stat at one with each meal for a couple of days then up to 2 and then 3. Also both while being pregnant and while taking PGX it is important to consume adequate amounts of water.

    Thanks so much for your question. Visit http://www.PGX.com for more info.

    Apr 17,2012 @ 9:16 am

  28. I have type 1 diabetes and stage 3 kidney disease, can I still take this?

    Sep 5,2012 @ 9:24 am

  29. Chantelle

    Hello Myla,

    It would be very beneficial for diabetes but I would seem advice from your doctor regarding interaction with stage 3 kidney disease.

    Thank you very much.

    Sep 5,2012 @ 10:31 am

  30. Chris

    Am taking PGX ultra soft gels, two before each meal. Done this for 4 months. Blood sugar levels have been reduced amazingly but . My blood pressure has been worryingly raised. Is there any evidence that there is a correlation.

    Dec 4,2012 @ 12:53 am

  31. Chantelle

    Hello Chris,
    Thank you for your message. I am not aware of there being side effects involving blood pressure and PGX as the product is fiber and omega oil based.
    I would suggest that you visit http://www.pgx.com and contact their help desk for further information. Also the 1 800 number that is on the bottle will take you to the customer care line and they will hopefully have more answers for you.

    Thank you again.

    Dec 4,2012 @ 11:05 am

  32. Cindy

    I am concerned about the possibility of Pgx blocking the absorption of my fish oil supplement. Ism,this possible?

    Mar 5,2013 @ 4:48 pm

  33. Nature's Fare Markets

    There is no worry with taking fish oil supplements with PGX. You should however take PGX away from any medication as it can slow the absorption of certain medications.
    Thank you

    Mar 6,2013 @ 1:50 pm

  34. Felicia

    With the exception of almonds, I have nut allergies and that would also include coconut. Being that PGX is derived from a coconut oil, would it be safe for someone like me to take?

    Jun 7,2013 @ 8:49 am

  35. Nature's Fare Markets

    Thank you for your question. If you do have a coconut allergy you would need to avoid taking any of the PGX Daily products as they contain the Medium Chain Triglycerides from Coconut oil. The SlimStyles PGX products do not contain the coconut oil only the pgx fibre which is derived from plant fibre.

    Jun 7,2013 @ 2:42 pm

  36. PGX even when drinking 3 litres of water a day makes me so constipated its terrible. same thing happened to my friend who ended up with a bowel specalist. why should this be happening?

    Aug 18,2013 @ 6:39 pm

  37. Nature's Fare Markets

    Thank you for contacting us, sorry for the late replay. Please contact the 1-800 number or email location on PGX.com or the customer service number on the side of the bottle as their team will have more specific answers for you.

    Thank you

    Sep 4,2013 @ 9:34 am

  38. David

    Chantelle or Trudy, did you get any feedback on the constipation problem related to taking PGX – I have been having the same problems – and as you, Trudy, mentioned, it is very painful and to go a step further, for me, it causes bleeding when I have a bowel movement

    Sep 26,2013 @ 11:21 am

  39. Nature's Fare Markets


    Thank you for the comment and we are very sorry to hear about your experience with the product. When you start to take fiber you have to greatly increase your fluid intake. Please contact the 1-800 number on the side of the bottle or contact them through PGX.com.

    Please remember if you are not happy with the product you can always return it to us and we would be happy to assist you in selecting a different product or get in touch with the manufacturer.

    Sep 30,2013 @ 2:09 pm

  40. Barb

    I recently purchases 500 mg Glucomannan, Konjac root (rapid relase) to aid in weight loss. I am not sure when I should take my blood pressure medicne so that it is still affective for me. I currently take 20 mg of Lisinopril and 10 mg of amlopidine. Can you tell me the best time to take these perscriptions while also taking the glucomannan?

    Jan 20,2014 @ 10:20 am

  41. admin

    Thank you for your question. Since the Glucomannan is a fiber type supplement it is recommended to take it at least 30 minutes to an hour away from prescriptions. Glucomannan works best when taken before eating each meal.

    Thank you so much.

    Jan 21,2014 @ 10:06 am

  42. M Ram

    I have been using PGX Daily since 2008. I was introduced to it by a Health Food Store Rep while shopping for weight loss/vitamin products. I have never looked back ever since. Absolutely no regrets. I started very slowly with one pill before each meal, and then build from there, thats what i normally do whenever I am trying any type of health aid products, I am type 2 diabetic, high cholesterol and HB pressure prior to PGX. I have changed my diet temendously over the years after being diagnosed with the above conditions. I am on a balanced diet with fresh fruits and vegetables, daily, brown rice, whole wheat bread, rice and pasta, along with lots of cooked vegetables. Have very little red meat, maybe a few times a year, do mostly chicken and fish. Lots of fluid intake daily which includes about 5 cups of green tea, about 10 or more glasses of water daily, one cup of regular tea with soy or almond milk, no added sugar. No coffee or alcohol. A cookie or two daily. All kinds of vitamins/suuplements. A multi, C, D, E, COQ, fish, flax, primrose, calcium, B complex, interchangeably, daily aerobic/strength exercise, 7/8 hours of sleep. I have been doing this regime since 2008/09. Every time I do my yearly physical, my Dr is always happy with my NUMBERS. He always questions me as to what am I doing so specifically, that my numbers are always in check. I may put on or minus a pound or two here and there whenever he weighs me!!!

    Thats my testament to PGX and my HUGE daily life changing lifestyle/diet since 2008/9.

    I eat out like once or twice a month!

    This is the healthiest I have ever felt/been!!!

    Thank you!

    Jan 26,2014 @ 12:26 pm

  43. admin

    WOW! This is such a great story.
    Thank you for sharing and keep up the great work!!

    Jan 28,2014 @ 11:24 am

  44. Beth

    I recently order PGx daily soft gels. Found out I was pregnant this past week. Received the PGx in the mail today.
    Is it safe to take when pregnant? I was wanting to lose weight beforehand. Just wondered if I should send it back or keep it. Does it expire? I didn’t see an expiration date on the bottle.

    Apr 30,2014 @ 12:21 pm

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