has input multivitamin preparation nutritional supplementation multivitamin supplementation http://orcid.org/0000-0001-7941-2961 supplementation with multivitamin A dietary supplement containing all or most of the vitamins that may not be readily available in the diet. Vitamins may be classified according to their solubility either in lipids (vitamins A, D, E, K, F) or in water (vitamins C, B-complex). Present in minute amounts in various foods, vitamins are essential to maintaining normal metabolism and biochemical functions. supplementation of multivitamin preparation 2019-01-19T09:00:01Z multivitamin preparation supplemental intake dietary supplementation of multivitamin preparation Addition of multivitamin preparation to a diet for complete nutrition support. NCIT:C1654