No. You would have to take an awful lot more than any available multivitamin to get to toxic levels of any vitamin. Only the fat soluble vitamins such as vitamins A, D, E and K can be taken in toxic doses. These you could ovverdose on if you swallowed a whole bottle. In medical school, they teach us that you can die from eating polar bear liver: (from http://www.funtrivia.com/askft/Question73586.html ) “Inuit (eskimo) people hunt the polar bear for fur and meat but cannot eat its liver, since its high content of vitamin A makes it poisonous for humans? So, be careful if you run across polar bear on a menu – 500 grams of polar bear liver will deliver about 9,000,000 IU vitamin A to your diet – a very lethal dose. Headaches, blurred vision, loss of hair, drowsiness and diarrhea, enlargement of the spleen and liver can all be indications when your intake is too high. ” But nothing like this will happen from a multivitamin.
The full story can be read/found on Men Multi Vitamin.com