Pharmacists recommend these vitamins and nutritional supplements most often. These vitamins and supplements, such as calcium supplements and multivitamins, are listed here to help patients who need assistance with vitamins and nutritional supplements. Pharmacists make thousands of recommendations every month to their patients regarding nutrition and vitamins. As the most accessible, and among the most trusted health care providers, pharmacists play a key role in helping maintain patients' health by recommending the use of vitamins and supplements.