Table 2.

Studies reporting fiber administration in humans.

Study Type	Nature of Participants	Duration Administered	Type and Dose of Fiber Administered	Main Findings	References
Randomized, double-blind parallel-group design controlled trial	Hypercholesterolemic adults	6 weeks	6 g concentrated β-glucan/day	Reduced total and LDL cholesterol	[93]
Randomized, single-blind, controlled, crossover intervention trial	Impaired glucose tolerance participants	18 weeks	15 g arabinoxylan/day	Improved fasting serum glucose	[94]
Randomized, single-blind, controlled, crossover intervention trial	Healthy and glucose intolerant subjects	one year	6 g of fiber partially hydrolyzed guar gum with each meal	Reduced postprandial plasma glucose, postprandial insulin, triacylglycerol levels	[95]
Randomized, single-blind, controlled, crossover intervention trial	Pre and post-menopausal, hypercholesterolemic women	6 weeks	5 g psyllium/day	Reduced total cholesterol for post-menopausal women but not in pre-menopausal women	[96]
Randomized, crossover, a single-blind, dietary intervention	Free-living subjects	28 days	Control diet: 25 g dietary fiber/day; LKFibre * diet: 55 g dietary fiber/day	Reduced total and LDL cholesterol	[97]
Clinical trial study	Healthy subjects; type-2-diabetes and pre-diabetics subjects.	16 weeks	10 g/day gum Arabic	Decrease in glycosylated hemoglobin (HbAc1), decrease fasting blood glucose, health improvement	[98]

* LKF—lupin kernel fibers.