When you take vitamins orally, they have to go through your digestive system, be broken down and then absorbed. By then, you are only getting about 20-30% of the actual dose. With IV nutrient therapy, you are guaranteed 100% direct absorption into the bloodstream, so your body is going to be able to utilize the nutrients to reach your optimum level of performance. You cannot reach this level with oral vitamins. Even if you are taking vitamins by mouth and eating healthy. Our soil is so nutrient depleted that it is impossible to get the proper level of nutrients we need from the foods we eat.