Explore how stress, poor sleep, inflammation, food sensitivities, circadian rhythm disruption, and vitamin D imbalances may be affecting your energy, cravings, mood, metabolism, and overall health. Registered dietitian functional nutritionist Meg Marie O’Rourke explains why “test, don’t guess” matters when it comes to personalized nutrition, functional testing, sleep support, inflammation, weight loss resistance, and precision supplementation. Learn how artificial light, stre