Kelly Barnhill, MBA, CN, CCN, provides background on the supplement industry and why we need to use them. She highlights the challenges of finding good supplements due to a relatively unregulated industry. The presenter outlines batch numbers, expiration dates, metal contamination and third-party testing validation. Barnhill touches on critical supplements like essential fatty acids, cod liver oil, omega-3, krill oil, and more. She stresses the importance of probiotics and how to choose the right one.