A stable nutritional supplement composition for oral administration comprising about 71% by weight, of a tomato extract containing therein at least 2% to 10% by weight of lycopene, 0.25% to 2% by weight of phytoene, and 0.2% to 2% by weight of phytofluene, and about 29% by weight, of a suitable encapsulating matrix. A suitable encapsulating matrix is an edible oil exemplified by soya oil, pumpkin seed oil, grape-seed oil and the like. The tomato extract may additionally comprise one or more of at least one carotene selected from the group comprising .beta.-carotene, .gamma.- carotene, and .delta.-carotene, a phytosterol, a tocopheral and a phospholipid. The tomato extract may be further processed into oleoresin emulsions, or into beadlets, or into dry powders. Methods for ameliorating the effects of aging-related urinary tract malfunctions in men, comprising orally administrating on a regular basis, an effective amount of the nutritional supplement compositions disclosed herein.
