Reduced calorie food product and methods of making

A method for producing a juice product comprising:

• providing a feed juice;
• separating the feed juice into a solids-rich fraction and a clarified juice fraction;
• enzymatically treating the clarified juice fraction to hydrolyze disaccharides to monosaccharides;
• passing the enzymatically treated clarified juice fraction through a membrane having a molecular weight cutoff between 190 to 210 Daltons to selectively separate high molecular weight nutrients to produce a high molecular weight nutrient (HMWN)-rich juice fraction and a first HMWN-depleted fraction, wherein the first HMWN-depleted fraction contains a greater amount of glucose and fructose than the HMWN-rich fraction;
• and,
• bioconverting the glucose and fructose in the HMWN-depleted fraction to form oligosaccharides.