Combining wheat bran with resistant starch has more beneficial effects on fecal indexes than does wheat bran alone

Muir, Jane G.; Yeow, E.; Keogh, Jennifer; Pizzey, Catherine; Bird, Anthony R.; Sharpe, Ken; O’Dea, Kerin; Macrae, Finlay

doi:10.1093/ajcn/79.6.1020

Cited by 137 publications

(109 citation statements)

References 34 publications

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“…With healthy young subjects on a typical Western diet the gastrointestinal transit time has generally been o3 days (Wyman et al, 1976;Stasse-Wolthuis et al, 1980;Eastwood et al, 1986;Haack et al, 1998) or o2 days (Muir et al, 2004). In the present study, the detected transit times were very short (38714 h) and the defecation frequency high (1.070.4 times per day).…”

Section: Fecal Lipid Content and Compositionsupporting

confidence: 40%

Stearic acid is well absorbed from short- and long-acyl-chain triacylglycerol in an acute test meal

2007

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Objective: Absorption of stearic acid from natural oils has been shown to be efficient, but it is claimed to be lower from shortand long-acyl-chain triacylyglycerol molecules (Salatrim). The aim was to measure the apparent absorption of stearic acid from Salatrim fat in an acute test meal. Design: Double-blind crossover study. Subjects: Ten healthy male volunteers, of whom eight completed the study. Methods: The subjects were studied on two occasions after consumption of a single high-fat meal either without (control) or with 30 g of Salatrim. Fecal samples were collected for 96 h after the meal and the fat was extracted for analysis of the content and composition of free and esterified long-chain fatty acids. Results: Baseline fecal fat was 5.672.6 g/day increasing to 10.474.9 g/day after addition of Salatrim (P ¼ 0.001). During the whole collection period, the baseline fecal free and esterified fatty acids were 2.672.3 and 0.870.7 g, respectively. After Salatrim meal the corresponding figures increased to 5.973.6 g (P ¼ 0.001) and 1.5 (71.2) g (P ¼ 0.003), respectively. The total fecal stearic acid after control meal was 0.9770.9 g. Consumption of Salatrim with 16.770.5 g of stearic acid increased the content to 3.1271.6 g (Po0.001), with apparent absorption of 87%. Conclusions: The apparent absorption of stearic acid does not differ from its absorption from natural fats. The status of Salatrim as a low-energy fat substitute needs to be re-evaluated. Sponsorship: University of Turku.

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Section: Fecal Lipid Content and Compositionsupporting

confidence: 40%

Stearic acid is well absorbed from short- and long-acyl-chain triacylglycerol in an acute test meal

2007

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“…Twelve randomised controlled trials were identified that presented evidence on wheat fibre in relation to intestinal transit time (Connell & Smith, 1974;Jenkins et al, 1975;Cummings et al, 1976;Wyman et al, 1976;Stasse-Wolthuis et al, 1980;Andersson et al, 1983;Spiller et al, 1986;Stevens et al, 1988;Tomlin & Read, 1988;Vuksan et al, 1999;Muir et al, 2004;Vuksan et al, 2008) (Colo-rectal health review, p 34-41, 43).…”

Section: 94mentioning

confidence: 99%

“…Ten randomised controlled trials were identified that presented evidence on resistant starch supplementation in relation to faecal weight, of which seven were included in a meta-analysis (Phillips et al, 1995;Cummings et al, 1996;Silvester et al, 1997;Heijnen et al, 1998;Jenkins et al, 1998;Behall et al, 2002;Muir et al, 2004). There was no indication that doses of 12g/day or less had any effect on faecal wet weight, so only data from doses greater than 12g/day were used.…”

Section: Faecal Weightmentioning

confidence: 99%

“…Eight randomised controlled trials were identified that presented evidence on wheat bran in relation to faecal pH and short chain fatty acid content (Jenkins et al, 1975;Cummings et al, 1976;Lampe et al, 1992;Jenkins et al, 1998;Jenkins et al, 1999a;McIntosh et al, 2003;Muir et al, 2004;Bird et al, 2008). The data on measures of faecal short chain fatty acid content were insufficiently comparable to allow a meta-analysis.…”

mentioning

confidence: 99%

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Macronutrients and type 1 diabetes (revision number 6)

Garden¹,

Paterson²

2014

Diapedia

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“…Increasing small intestinal digesta viscosity increases rate of passage through the intestine (Bueno and Fioramonti 1994) thereby decreasing the opportunity for digestion and absorption of nutrients (Ellis et al 1996) and leading to passage of fermentable products to the colon. The accumulation of the products of fermentation in the colon can restrict water re-absorption leading to increased frequency of more moist stools (Muir et al 2004). Increasing dietary barley or corn proportions from 20 to 80% of diet DM increased viscosity of duodenal digesta supernatant by 35 and 48%, respectively (Mir et al 2000), with the viscosity ranges in steers fed corn being greater than of those fed barley.…”

Section: Measurement Of Digesta Viscosity and Its Interaction With Thmentioning

confidence: 99%

Dietary oil rich in polyunsaturated fatty acids for ruminants: Post-ruminal digesta characteristics and their implications on production

Mir¹,

McAllister²,

Gibb³

et al. 2006

Can. J. Anim. Sci.

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. 2006. Dietary oil rich in polyunsaturated fatty acids for ruminants: Post-ruminal digesta characteristics and their implications on production. Can. J. Anim. Sci. 86: 159-170. Maximizing the production of ruminants requires high intakes of feeds that are energy dense, therefore feeds that are usually high in starch. Under these conditions there can be significant passage of partially digested feed starch and fibre to the small intestine. These digesta components interact in a manner that can diminish post-ruminal digestion and absorption. However, in ruminants, the effects of digesta composition on causing physical constraints to digestion and absorption, via increased digesta viscosity have not been given adequate consideration. While elevation of digesta viscosity as a means of reducing rate of nutrient absorption and re-absorption of compounds detrimental to health is a valid approach in humans, digesta viscosity may reduce the production potential of livestock. Thus, there is merit in reviewing the feeding strategies that lead to increased viscosity and how its mitigation can be managed through inclusion of oil in ruminant diets. The interactions between digesta composition and the resultant viscosity with digestive physiology and production factors are examined. This review also highlights the associated benefits of dietary oil for ruminants, such as enhancement of bio-active lipids in ruminant products, health benefits directly to the animal, through decreasing incidence of liver abscesses and effects on production and possibly on the environment (reduction of enteropathogenic bacterial shedding and methane emissions).Key words: Ruminant, starch, digesta characteristics, viscosity, cholecystokinin Mir, P. S., McAllister, T. A., Gibb, D. J. et Okine, E. K. 2006. Huile riche en acides gras polyinsaturés pour les ruminants : propriétés des produits de digestion au-delà du rumen et conséquences pour la production animale. Can. J. Anim. Sci. 86: 159-170. Pour maximiser leur production, les ruminants doivent ingérer une grande quantité d'aliments très énergétiques, souvent riches en amidon. Dans de telles conditions, il arrive qu'une proportion sensible d'amidon et de fibres mal digérés passe dans l'intestin grêle. Ces produits interagissent en ralentissant la digestion et l'absorption des aliments au-delà du rumen. On ne s'est pas assez intéressé à la composition de ces produits et aux contraintes physiques qu'ils imposent à la digestion et à l'absorption des aliments consécutivement à une hausse de la viscosité du bol alimentaire, chez les ruminants. Bien que la réduction du taux d'absorption des aliments et de la réabsorption des composés nocifs pour la santé par une viscosité accrue du bol alimentaire soit une approche valable chez l'être humain, la viscosité des produits de digestion peut diminuer le potentiel de production des ruminants. Revoir les programmes d'alimentation qui aboutissent à une hausse de la viscosité et voir comment on pourrait atténuer ce problème par l'inclusion d'huile au régime n'es...

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Combining wheat bran with resistant starch has more beneficial effects on fecal indexes than does wheat bran alone

Abstract: Combining WB with RS had more benefits than did WB alone. This finding may have important implications for the dietary modulation of luminal contents, especially in the distal colon (the most common site of tumor formation).

Cited by 137 publications

References 34 publications

Stearic acid is well absorbed from short- and long-acyl-chain triacylglycerol in an acute test meal

Stearic acid is well absorbed from short- and long-acyl-chain triacylglycerol in an acute test meal

Macronutrients and type 1 diabetes (revision number 6)

Dietary oil rich in polyunsaturated fatty acids for ruminants: Post-ruminal digesta characteristics and their implications on production

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