KEY POINTS 
Prebiotics are colonic foods.
Prebiotics maintain mucosal growth and stimulate growth of intestinal flora.
PROBIOTIC VERSUS SYNBIOTIC Prebiotics are also known as colonic food.
1 Synbiotic, in contrast, is a combination of prebiotic and probiotic.
2,3 The combination has the potential to provide at least additive, and possibly synergistic, beneficial effects.
PREBIOTIC FUNCTIONS IN THE INTESTINES Maintain gut wall integrity
Water electrolyte homeostasis
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