The present invention relates to a combination of a hermetically sealed, substantially air-tight container and a nutritional composition. The container of the present invention is adapted for the convenient transport, and storage of a single daily oral dose of a nutritional composition containing a fatty acid, for example, diacyl glycerol, an octadecatrienoic acid, an octadecadienoic acid, linolenic acid, linoleic acid, conjugated linoleic acid (CLA) or a combination thereof. In a preferred embodiment, the present invention relates to the use of the c9, t11 and t10, c12 isomers of CLA in a nutritional composition. The wide range of health benefits associated with consumption of these CLA fatty acids is well known. Furthermore, the invention relates to a container that substantially prevents CLA lipid oxidation caused by exposure to air.