A food product comprises an oligosaccharide composition that is digestion resistantor slowly digestible. The oligosaccharide composition can be produced by a processthat comprises producing an aqueous composition that comprises at least oneoligosaccharide and at least one monosaccharide by saccharification of starch,membrane filtering the aqueous composition to form a monosaccharide-rich streamand an oligosaccharide-rich stream, and recovering the oligosaccharide-richstream. Alternatively, the oligosaccharide composition can be produced bya process that comprises heating an aqueous feed composition that comprisesat least one monosaccharide or linear saccharide oligomer, and that has a solidsconcentration of at least about 70 % by weight, to a temperature of at least about4O °C, and contacting the feed composition with at least one catalyst thataccelerates the rate of cleavage or formation of glucosyl bonds for a time sufficientto cause formation of non- linear saccharide oligomers, wherein a product compositionis produced that contains a higher concentration of non-linear saccharide oligomersthan linear saccharide oligomers.