Is it healthy to take centrum as a just in case i have a vitamin deficiency or if i eat a healthy diet is taking centrum an overdose on vitamins?

Vitamins: A good multivitamin is a good idea. It's like an insurance policy for when we don't eat right, don't sleep well, or are especially stressed. Go to a good store or get some guidance because the popular brands are typically very week and not helpful. Poor food quality and soil depletion lowers nutritional value w/food today. Your doc can test for vitamin deficiencies.