“Designed Clinical Nutrition” is exactly that: designed (especially prepared based on a specific plan) clinical (pertaining to the results received in clinical use or actual practice on huge numbers of clients over many years) nutrition (real food, designed by nature to enable the body to repair itself and grow healthfully).
Designed Clinical Nutrition is not “over-the-counter” vitamins. Over-the-counter vitamins are pharmaceutically engineered chemical fractions of vitamin structures reproduced in a laboratory. They are not “whole food,” and the body does not actually recognize these as anything even vaguely beneficial (to put it mildly).