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Nathan Goodyear

Beta Glucan: Health Benefits in Obesity and Metabolic Syndrome - 0 views

www.ncbi.nlm.nih.gov/...PMC3236515

obesity metabolic syndrome beta glucan fiber health

shared by Nathan Goodyear on 23 Aug 16 - No Cached
  • beta glucan (β-glucan), which is a dietary fiber readily found in oat and barley bran
  • Among cereals, the highest content (g per 100 g dry weight) of β-glucan has been reported for barley: 2–20 g (65% is water-soluble fraction) and for oats: 3–8 g (82% is water-soluble fraction). Other cereals also contain β-glucan but in much lower amounts: sorghum 1.1–6.2 g, rye 1.3–2.7 g, maize 0.8–1.7 g, triticale 0.3–1.2 g, wheat 0.5–1.0 g, durum wheat 0.5-0.6 g, and rice 0.13 g
  • Other sources of β-glucan include some types of seaweed [17] and various species of mushrooms such as Reishi, Shiitake, and Maitake [18].
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  • Distinction between soluble and insoluble dietary fibers is based on the solubility characteristics of dietary fiber in hot aqueous buffer solutions
  • Insoluble fibers primarily consist of cellulose and some hemicelluloses, resistant starch, and chitin while soluble fibers include pectins, β-glucans, galactomannan gums, mucilages, and some hemicelluloses
  • insoluble fibers increase fecal bulk and the excretion of bile acids and decrease intestinal transit time
  • Soluble fibers increase total transit time by delaying gastric emptying and also slow glucose absorption
  • only soluble viscous fibers delay gastric emptying time and slow glucose absorption while nonviscous soluble fibers primarily act as a substrate for microbial fermentation in the colon
  • Nathan Goodyear on 23 Aug 16
     
    good review on Beta glucan.
Nathan Goodyear

Cereal Fiber Improves Whole-Body Insulin Sensitivity in Overweight and Obese Women - 0 views

care.diabetesjournals.org/...775.full

fiber insoluble insulin resistance obese women overweight obesity

shared by Nathan Goodyear on 22 Oct 13 - No Cached
  • Nathan Goodyear on 22 Oct 13
     
    insoluble fiber intake improves insulin sensitivity in obese and overweight women.
Nathan Goodyear

Metabolic Effects of Dietary Fiber Consumption and Prevention of Diabetes - 0 views

jn.nutrition.org/...439.long

soluble insoluble fiber dietary diet nutrition diabetes

shared by Nathan Goodyear on 22 Oct 13 - No Cached
  • DF are highly complex substances that can be described as any nondigestible carbohydrates and lignins not degraded in the upper gut
  • Commonly, DF are classified according to their solubility in water, even though grading according to viscosity, gel-forming capabilities, or fermentation rate by the gut microbiota might be physiologically more relevant
  • Main sources of soluble DF are fruits and vegetables
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  • n increased intake of total DF was inversely associated with markers of insulin resistance in several studies
  • consumption of insoluble DF increased whole body glucose disposal independent of changes in body weight in both short-term and more prolonged studies
  • Short-chain fatty acids (SCFA) such as acetate, propionate, and butyrate are produced by bacterial fermentation of indigestible DF polysaccharides in the colon
  • increased production of SCFA is assumed to be beneficial by reducing hepatic glucose output and improving lipid homeostasis
  • a high DF diet (oligofructose) reduced gram-negative bacterial content and body weight, whereas a high fat diet increased the proportion of a gram-negative bacterial lipopolysaccharides (LPS) containing microbiota in humans
  • Prospective cohort studies indicate that diets high in insoluble cereal DF and whole grains might reduce diabetes risk
  • soluble DF (i.e., pectin, inulin, and β-glucans)
  • cereal DF (i.e., cellulose and hemicelluloses)
  • Nathan Goodyear on 22 Oct 13
     
    Good discussion of dietary fiber intake and Diabetes.  
Nathan Goodyear

Soluble and insoluble dietary fibre in diabetic diets. - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...2840278

diabetes fiber soluble fiber

shared by Nathan Goodyear on 28 Jul 16 - No Cached
  • Nathan Goodyear on 28 Jul 16
     
    fiber, particularly soluble fiber, improves sugar control in diabetes.
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