Synthetic vs natural ingredients

Q: Patients might ask their doctors why they have to take (for example) three tabs of the BioMulti Plus compared to the one tablet of a OTC product.

A: A more natural product will contain a larger bulk to possess than a similar amount of a synthetic ingredient. Thus it is necessary to take a larger quantity of the more natural product. Additionally, with synthetics they are easier to compress (i.e.packed together) thus less bulk/quantity is required. Because of this they are not as easily digested or assimilated.
It has been said that 1a day vitamins essentially amount to expensive stool, they are typically excreted whole rather than being absorbed.