Short-term digestive tolerance of different doses of NUTRIOSE®FB, a food dextrin, in adult men

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To determine the tolerance of increasing dosages of an incompletely hydrolysed and/or incompletely absorbed food dextrin coming from wheat starch, NUTRIOSE®FB, at daily levels of 10 and 15 g up to 60 and 80 g, respectively.


A randomized, double-blind, multiple dose, placebo-controlled, combined crossover and parallel trial.


The metabolic ward of TNO Nutrition and Food Research.


A total of 20 healthy men (age 31.7±9.1 y; BMI 24.5±2.9 kg/m2).


One group of 10 subjects consumed on top of their diet 10, 30 and 60 g of NUTRIOSE®FB or maltodextrin (placebo) daily. The other group of 10 subjects consumed 15, 45 and 80 g daily. Each dose was consumed for 7 days.


Compared with placebo, flatulence occurred more frequently over the last 6 days on 30, 60 or 80 g/day of NUTRIOSE®FB (P<0.05). During the last 24 h, that is, days 6-7, of 60 and 80 g/day of NUTRIOSE®FB, the frequency of flatulence was even higher (P<0.05). During the last 24 h on a daily dose of 60 g NUTRIOSE®FB, the frequency of defecation decreased (P<0.05). Bloating occurred more often during the last 24 h on 80 g/day of NUTRIOSE®FB (P<0.05). None of the doses of NUTRIOSE®FB resulted in diarrhoea. Compared to baseline levels, breath H2 excretion, which was only measured after a week with 10 and 15 g of NUTRIOSE®FB daily, increased (P<0.05). However, no difference in area under the curve was found.


NUTRIOSE®FB is a fermentable carbohydrate and is well tolerated up to a dose of 45 g daily. Higher daily dosages (60 and 80 g) may result in flatulence, but does not result in diarrhoea.


TNO Nutrition and Food Research was assigned by Roquette Frères to perform the study.

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