One of the challenges with traditional vitamin supplements is that many vitamins can be poorly absorbed by the body. When taken in their regular form, a significant portion of the vitamins may not be fully utilized, as they can be broken down or destroyed during digestion or fail to cross the intestinal barrier. Studies show that, on average, only about 10-20% of certain vitamins in standard supplements are actually absorbed and used by the body. This means that a large percentage of the nutrients can pass through the digestive system without providing the intended benefits.