| abstract |
The present invention relates to compositions and methods for administration of vitamin-mineral supplements, including those given to women prenatally. A multi-component vitamin delivery system is described comprising a first layer able to release a first set of components at a first location in the gastrointestinal tract, the first set of components includes iron in a form absorbable at the first location and a second layer able to release a second set of components at a second location in the gastrointestinal tract, the second location being further downstream in the gastrointestinal tract than the first location. The second set of components includes at least one material that reduces or inhibits the absorption of iron or whose absorption is inhibited by iron. Components are incorporated into the different layers of the delivery system to minimize the potential for interactions that may impair absorption and maximize conditions for optimal absorption. |