IGF-1 (Insulin-Like Growth Factor 1) has emerged as a hot topic in health and nutrition discussions, often linked to longevity, cancer risk, and metabolic health. On one hand, IGF-1 is essential for growth, repair, and metabolic regulation; on the other, it is sometimes associated with disease processes, including cancer and cognitive decline. For those intrigued by the intersection of nutrition, biomarkers, and disease prevention, IGF-1 offers an opportunity to explore how science grapples with these complexities. Claims about manipulating IGF-1 through dietary changes — whether by reducing protein or adopting fasting protocols — are common. But does the evidence support these claims? If you're curious about IGF-1 and the relationships between diet, disease, and healthy aging, in this Premium-exclusive episode Danny and Alan discuss this fascinating topic. To listen to the full episode, subscribe to Sigma Nutrition Premium Timestamps [02:21] IGF-1 and Diet: Examining the Relationship [09:15] IGF-1 as a Biomarker: Challenges with Sensitivity and Specificity [11:54] IGF-1 and Cancer Risk: Insights and Complexities [25:51] IGF-1 in Aging: Cognitive Function and Longevity Considerations [43:38] Key Takeaways: IGF-1, Diet, and Practical Advice Related Resources Join the Sigma email newsletter for free Subscribe to Sigma Nutrition Premium Enroll in the next cohort of our Applied Nutrition Literacy course Murphy et al., 2020 – observational and Mendelian randomization analyses
