If you haven't already found out for yourself, the vitamin and nutritional supplement marketplace is a very confusing place. Advice given by the sales people at health food stores can never be based on your biochemical individuality. Try as they might, the store employees simply don't know you that well. If you choose to become a client of Sherry's, she will tailor your supplement recommendations to your own laboratory test results. If you are an existing client of Sherry's you can click here to buy products