There was interaction by food source , with specific food sources showing beneficial effects ( fruit and fruit juice ) or harmful effects ( sweetened milk and mixed sources ) in substitution studies and harmful effects ( sugars‐sweetened beverages and fruit juice ) in addition studies on at least one outcome .
Conclusions Energy control and food source appear to mediate the effect of fructose‐containing sugars on glycaemic control .
Although most food sources of these sugars ( especially fruit ) do not have a harmful effect in energy matched substitutions with other macronutrients , several food sources of fructose‐containing sugars ( especially sugars‐sweetened beverages ) adding excess energy to diets have harmful effects .
Objective To assess the effect of different food sources of fructose‐containing sugars  on glycaemic control at different levels of energy control .
Effect of banana consumption on faecal microbiota: a randomised, controlled trial.
Banana is a widely consumed fruit , which contains considerable amounts of potential prebiotic indigestible carbohydrates . In our r and omised , controlled trial we aim ed to evaluate the in vivo prebiotic effect of banana consumption on faecal microbiota . Thirty-four healthy women participated in the study , having Body Mass Index ( BMI ) 24 - 30 kg/m(2 ) , age 19 - 45 years , without history of gastrointestinal disease and no antibiotic and other medication use two months prior the initiation and during the study . All women were asked to maintain their usual dietary habits for 60 days and they were r and omly assigned to consume twice a day a pre-meal snack , either one medium banana , or one cup of banana-flavoured drink or one cup of water ( control group ) . Stool sample s were collected at baseline , on days 30 and 60 of intervention for enumeration of total anaerobes , bifidobacteria and lactobacilli by plate count techniques , as well as for pH and short chain fatty acids ( SCFAs ) measurement . Gastrointestinal symptoms were also recorded . Mean bifidobacterial levels were increased only in the banana group both at 30 and 60 days of intervention , but this change did not reach a statistical significance . No significant overall differences in the total concentrations and molar ratios of SCFAs were detected according to dietary intervention . Analysis of the gastrointestinal symptoms records revealed significantly lower bloating levels in the banana group , compared to controls , at 26 - 35 days ( p = 0.009 ) and 51 - 60 days ( p = 0.010 ) . Banana consumption had also no adverse effects on evacuation patterns . We concluded that daily consumption of bananas is a well-tolerated eating behaviour , which may induce bifidogenesis in healthy women experiencing body weight problems
There was interaction by food source , with specific food sources showing beneficial effects ( fruit and fruit juice ) or harmful effects ( sweetened milk and mixed sources ) in substitution studies and harmful effects ( sugars‐sweetened beverages and fruit juice ) in addition studies on at least one outcome .
Conclusions Energy control and food source appear to mediate the effect of fructose‐containing sugars on glycaemic control .
Although most food sources of these sugars ( especially fruit ) do not have a harmful effect in energy matched substitutions with other macronutrients , several food sources of fructose‐containing sugars ( especially sugars‐sweetened beverages ) adding excess energy to diets have harmful effects .
Objective To assess the effect of different food sources of fructose‐containing sugars  on glycaemic control at different levels of energy control .