In this podcast episode, Dr. Stephanie Venn-Watson discusses the significant impact of pentadecanoic acid (C15), a saturated fat found in whole-fat dairy and certain fish, on metabolic health, inflammation, and longevity. Her unexpected findings from studying Navy dolphins reveal C15's crucial role in cellular health and suggest it may be an essential fatty acid. Dr. Venn-Watson challenges traditional views on saturated fats, urging listeners to recognize the unique benefits of C15 and reconsider dietary guidelines. She emphasizes the importance of C15 for various groups, especially those at risk of deficiency, and looks ahead to future research and clinical trials exploring its effects.