Multivitamins - are they necessary?  Yes, I recommend taking one daily, assuming no medical contraindications - always check with your doctor if you are not sure or have medical conditions.  It is a difficult task to know if you are getting enough of every type of nutrient to optimize your body function.  Some days, you may get all of your vitamins but other days, your diet may lag in diversity of food groups.  Take 3 seconds out of your day to take a multivitamin you will have all your vitamin and mineral requirements covered.  And yes, it is better to get your nutrients from food, but  since it may be difficult to eat perfectly every day, a vitamin will do just fine to supplement your diet - hence its name!