How much time does it take to feel the full effects of multivitamins?

Multivitamins: If you eat a well balanced diet, you may not need a multivitamin and if you take one as a "safety net" know that you may exceed what your body needs or can use. beta carotene by smokers actually increased the incidence of lung cancer Balanced Diet with Protein, Fat, carbohydrates, Minerals, Vitamins and Anti-oxidants is more beneficial than Multivitamins See Physician for diagnosis and treatment