The most cost-effective way to determine which vitamins your body needs is to get a comprehensive nutrition panel. This will help you identify any deficiencies, allowing you to focus on taking only those vitamins. I recommend trying the necessary vitamins for six months, then getting another nutrition panel to assess their effectiveness and make adjustments as needed. I admit, though, that I haven’t always followed my own advice due to budget constraints.

Fact: the science behind most vitamins is questionable. I often contemplate skipping them altogether. The only supplements I take are those recommended by trusted professionals—my plastic surgeon, primary care provider, personal trainer, gynecologist, and even my hairdresser (who I consider a hair doctor). Have these vitamins made a difference? I can’t say for sure. Below is a list of the doctor-recommended vitamins I take, organized by preference and scientific backing.