In one embodiment of the present invention, a pharmaceutically-acceptable single-dosage formulation consists essentially of about 500 mg of vitamin C about 400 IUs of vitamin D3 about 125 IUs of vitamin E about 25 mg of vitamin B1 about 3.4 mg of vitamin B2 about 35 mg of niacin about 35 mg of vitamin B6 about 1.25 mg of folic acid about 70 mcg of vitamin B12 about 5 mg of pantothenic acid about 75 mcg of biotin about 35 mg of magnesium about 35 mg of zinc about 1 mg of copper about 125 mcg of selenium about 150 mcg of chromium about 10 mg of alpha lipoic acid about 35 mg of co-enzyme Q-10 about 400 mcg of lutein about 125 mcg of lycopene and at least one or more excipients.