Today's episode is an excerpt from Dr. Mark Hyman’s Commune course, Hacking Your Healthcare. You can enjoy this program free for 10 days at onecommune.com/healthcare. In this lesson Dr. Hyman applies a functional medicine approach to our nutrition, including a look at optimal levels (which are not the same as “normal levels”!) for a variety of key nutrients. He also offers best practices for supplementing when we fall outside the optimal range. Learn more about Commune at onecommune.com. Connect with us on Instagram at @onecommune and @jeffkrasno.