Abstract: A nutrient fiber matrix and associated methods that help control blood sugar levels is described. The matrix can control blood sugar in a variety of ways. In one possible example, the matrix blocks carbohydrates in a manner that reduces the body's ability to take the carbohydrates into its cells. In another example, the matrix acts to increase a person's energy level and feelings of satiety. Thus, the matrix can reduce the person's desire to consume more food and, thereby, help the person to keep from increasing his or her blood sugar levels by eating more. In still another example, the fiber matrix helps sugars to be absorbed over a longer period of time so as to smooth out and prevent spikes in blood sugar levels.

Abstract: A method of providing controlled release of a biologically active substance within a subject's digestive system. The biologically active substance is administered concurrently with one or more soluble fibers in an oral dosage unit. The soluble fibers interact with the biologically active substance within the subject's digestive system to moderate and control the release of the biologically active substances in the subject's bloodstream. This provides more constant blood concentrations of the biologically active substances. The amount of soluble fibers in the oral dosage unit is greater than 40% by weight, and in some cases greater than 50% by weight of the oral dosage unit. The oral dosage unit typically contains from about 1 to 15g of soluble fiber, and in some cases from about 3 to 5g of soluble fiber. The biologically active substance may contain phytonutrients that promote the subject's cardiovascular system, immune system, or weight management.