Because the Besanna Scanner is not a diagnostic device, it cannot tell which products are most needed. Rather, the Besanna algorithm lists the top 8-12 supplements, essential oils, products, or recommendations to which the body responded strongest. When products are recommended that you're already taking, your body is simply responding more favorably to those products than to others. Everyone's body is unique and how our bodies process and absorb nutrients varies from person to person. If you get a recommendation for a product you're already taking, you may want to consider the following among others: Simply continue taking the recommended products; Change the time of day or the frequency you take the product; Change the form (i.e. capsule vs. liquid) or how you take the product (i.e. ingest or diffuse); Adjust the dosage of product you are taking.