One of the things we like to recommend in view of all the publicity on multivitamins is to have a diet with at least 5 vegetables and fruits a day. A multivitamin will help. A diet with 5 fruits and vegetables is good because it also contains the fiber that we need. Those things are available from the FDA Web site. They would give you more specific information on what actually constitutes a serving.
Optimum health varies from one person to the next.
In general, optimum health means freedom from nutritional deficiencies, a healthy and active lifestyle, no smoking, moderate drinking and no drugs. Basically again, the body generally needs a healthy lifestyle. A multivitamin would be the best nutritional supplement. A multivitamin a day would be the best nutritional supplement. Nutrients are substances that we take in that are used for a variety of processes in our bodies to build and maintain our bodies.