NutraFlora®, from GTC Nutrition Co., Golden, Colo., consists of 95% short-chain oligosaccharides. It is enzymatically processed from fructose and glucose derived from sugar cane and sugar beets so that only 2-3% glucose remains.
“It is 95% pure short-chain FOS,” says Paula Karabell, technical director. “It's very consistent and it gives better benefits. The short-chain FOS is a very effective bifidogenic. It encourages the growth of helpful bifidobacteria and some lactobacilli in the intestine, and it doesn't grow E. Coli or Clostridium. The longer chain FOS are not as effective.”
FOS functions as soluble fiber in the gastrointestinal system. It is indigestible in humans. However, it promotes health by encouraging growth of bacteria that strengthen the immune system and fight infection. It is metabolized into short-chain fatty acids that provide metabolic energy, help digest food and amino acids, produce certain vitamins and promote regularity.