Dietary fiber for use as an ingredient in food and beverage products; prebiotic supplements; dietary and nutritional supplements; health food supplements; and nutraceuticals for use as a dietary supplement; powdered nutritional supplement concentrate and dietary supplements in the form of powders and concentrates used as a drink mix, namely, used in the preparation of nutritional and dietary drinks and beverages; nutritional supplements in the form of powders, powdered nutritional supplement drink mixes, nutritional supplement shakes, nutritional supplement food and energy bars, nutritional supplements in the form of tablets, and nutritional supplements in the form of gel capsules; vitamin supplements; nutritional supplement meal replacement bars; nutritional supplement energy bars; meal replacement bars adapted for medical use; nutritional supplement beverages