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Home > Anti-aging Research > PGX™

PolyGlycopleX™ (PGX™)

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  • Mulberry extract activates brown fat, shows promise as obesity treatment - Science Daily, 10/26/16 - "a natural compound in mulberries, called "rutin," can activate the BAT in our bodies to increase metabolism and facilitate weight loss ... Rutin treatment significantly reduced adiposity, increased energy expenditure, and improved glucose homeostasis in both the genetically obese mice and the mice with diet-induced obesity. Specifically, the researchers found that rutin directly binds to and stabilizes SIRT1 (NAD-dependent deacetylase sirtuin-1), leading to hypoacetylation of PGC1α protein, which stimulates Tfam transactivation and eventually augments mitochondrial number and UCP1 activity in BAT" - See rutin at Amazon.com.
  • Cholesterol & Statin Drugs - Life Extension Magazine, 11/04 - "PGX™. A relatively small amount (one to three grams before each meal) of this highly viscous fiber blend of glucomannan, xanthan, and alginate may help lower LDL and total cholesterol"
  • Novel Fiber Limits Sugar Absorption - Life Extension Magazine, 9/04 - "With the introduction of a new highly viscous fiber blend trademarked under the name PGX™, it may now be possible to achieve the multiple documented benefits of fiber by swallowing only a few capsules before each meal. The longevity potential associated with reducing after-meal glucose and insulin blood levels, lowering total cholesterol and LDL, and losing some weight is enormous"
  • Novel Fiber Limits Sugar Absorption - Life Extension Magazine, 9/04 - "Life Extension recommends that people seeking to lose weight consume the following supplements: ... Chromium polynicotinate 600-1000 mcg daily ... Conjugated linoleic acid (CLA) 3000-4000 mg daily ... PGX™ highly viscous fiber blend 1000-3000 mg 5-10 minutes before each meal with 8-16 ounces of water ... Consider asking your doctor to prescribe 500 mg two to three times daily of the insulin-normalizing drug metformin"
  • Solving Syndrome X - Dr. Murray's Natural Facts, 7/21/04 - "PGX lowers after meal blood sugar levels by approximately 20 to 40% and also lowers insulin secretion by approximately 40% producing a whole body insulin sensitivity index improvement of nearly 60%"  - See PGX at Amazon.com PGX products.


  • Effect of Fibre Supplementation on Body Weight and  Composition, Frequency of Eating and Dietary  Choice in Overweight Individuals - Nutrients. 2017 Feb 16;9(2) - "In the PGXG group, intention-to-treat analysis showed there was a significant reduction in waist circumference (2.5 cm; p = 0.003) [about an inch]" - [Nutra USA] - See PGX at Amazon.com.
  • Konjac Glucomannan Dietary Supplementation Causes Significant Fat Loss in Compliant Overweight Adults - J Am Coll Nutr. 2015 Oct 22 - "supplement containing either 3 g of konjac glucomannan ... 30 minutes before eating ... when subjects were classified as either compliant or partially compliant using the compliance measures, statistically significant reductions in scale weight, percentage body fat, fat mass, total cholesterol, and low-density lipoprotein (LDL) cholesterol were found in the glucomannan group compared to the placebo group" - See konjac glucomannan at Amazon.com.
  • Inhibitive effects of mulberry leaf-related extracts on cell adhesion and inflammatory response in human aortic endothelial cells - Evid Based Complement Alternat Med. 2013;2013:267217 - "bombyx faces tea (BT) ... Acidic methanolic and water extracts of mulberry leaf tea (MT), mulberry leaf (M), and BT significantly inhibited DNA oxidative damage to lymphocytes based on the comet assay as compared to the H2O2-treated group" - See PGX at Amazon.com.
  • Dietary supplementation with purified mulberry (Morus australis Poir) anthocyanins suppresses body weight gain in high-fat diet fed C57BL/6 mice - Food Chem. 2013 Nov 1 - "Three kinds of anthocyanins (cyanidin-3-glucoside, cyanidin-3-rutinoside and pelargonidin-3-glucoside) purified from Chinese mulberry (Morus australis Poir) were evaluated for suppressing body weight gain of the male C57BL/6 mice fed with high-fat diet (HFD). The results from a 12-week experiment show that consumption of purified mulberry anthocyanins (MACN) of 40 or 200mg/kg can significantly inhibit body weight gain, reduce the resistance to insulin, lower the size of adipocytes, attenuate lipid accumulation and decrease the leptin secretion. Thus, dietary supplementation with MACN can protect against body weight gain of the diet-induced obese mice" - [Nutra USA] - See PGX at Amazon.com.
  • Effects of added PGX®, a novel functional fibre, on the glycaemic index of starchy foods - Br J Nutr. 2011 Oct 10:1-4 - "Healthy subjects (n 10) consumed glucose sugar (50 g in water × 3) and six starchy foods with a range of GI values (52-72) along with 0 (inert fibre), 2.5 or 5 g granular PGX® dissolved in 250 ml water ... PGX® significantly reduced the GI of all six foods (P < 0.001), with an average reduction of 19 % for the 2.5 g dose and 30 % for the 5 g dose, equivalent to a reducing the GI by 7 and 15 units, respectively. Consuming small quantities of the novel functional fibre PGX®, mixed with water at the start of a meal, is an effective strategy to reduce the GI of common foods"
  • Effects of PGX, a novel functional fibre, on acute and delayed postprandial glycaemia - Eur J Clin Nutr. 2010 Oct 6 - "Granular PGX at breakfast time at doses of 2.5, 5 and 7.5 g reduced the incremental area under the curve by up to 50% in a linear dose-response fashion (P<0.001). The granular form of PGX (5 g), but not the capsules, reduced glycaemia by up to 28% when consumed from -45 to +15 min (P<0.001). Capsules containing 3, 4.5 and 6 g PGX consumed with the evening meal reduced glycaemia at breakfast by up to 28% (P<0.001)"
  • Reduction of Postprandial Glycemia by the Novel Viscous Polysaccharide PGX, in a Dose-Dependent Manner, Independent of Food Form - J Am Coll Nutr. 2010 Apr;29(2):92-8 - "The objective of the study therefore was to determine palatability and effectiveness of escalating doses of PGX, a novel viscous polysaccharide (NVP), in reducing postprandial glycemia when added to a liquid and a solid meal ... Addition of NVP to the meal reduced blood glucose incremental areas under the curve irrespective of dose, reaching significance at the 7.5 g dose when added to glucose (p < 0.01), and at the 5 and 7.5 g doses when added to WB + Marg (p < 0.001). The GI values of glucose with 0, 2.5, 5, or 7.5 g of NVP were (mean +/- standard error of the mean [SEM]) 100.0 +/- 0.0, 83.7 +/- 9.0, 77.7 +/- 8.2, and 72.5 +/- 5.9, respectively; the GI of the WB alone, or of WB + Marg, with 0, 2.5, 5, or 7.5 g of NVP was 71.0 +/- 0.0, 66.8 +/- 3.0, 47.5 +/- 5.9, 37.3 +/- 5.9, and 33.9 +/- 3.6, respectively. CONCLUSION: Addition of NVP to different food matrices is highly effective in lowering the glycemic index of a food in a dose-responsive manner" - See PGX at Amazon.com.
  • Increased plasma PYY levels following supplementation with the functional fiber PolyGlycopleX in healthy adults - Eur J Clin Nutr. 2010 Jul 28 - "A variety of dietary fibers have been shown to alter satiety hormone gene expression and secretion. The objective of this study was to examine plasma satiety hormone concentrations in healthy subjects consuming either PolyGlycopleX (PGX) or control (skim milk powder) for 21 days ... Primary outcomes measured at three visits (V1, V2 and V3) were plasma active glucagon-like peptide-1 (GLP-1) total ghrelin, peptide YY (PYY) and insulin. Results: There was a significant effect of visit for fasting PYY with control participants experiencing decreased PYY levels over time while PGX prevented this decline. When stratified by body mass index (BMI), PGX increased fasting PYY levels from week 1 to week 3 compared with control in participants with BMI <23 kg/m(2). There was a significant effect of visit for fasting ghrelin with levels decreasing in both PGX and control groups over time. No differences were detected in fasting GLP-1 levels. Although there was a 14% reduction in fasting insulin between V1 and V3 with PGX this was not significantly different from control" - Note:  I don't know how they determine that a 14% reduction isn't significant.  See PGX at Amazon.com.
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