This module introduces the key distinction between lifespan and healthspan – emphasising that it’s not just about living longer but living well. Nutrition emerges as a foundational lever to influence ageing, disease prevention, and cellular health. The module explores how diet affects inflammation, mitochondrial health, and chronic disease, and introduces practical strategies such as caloric restriction, low-carb eating, meal timing, and moderated animal protein intake. The science is brought to life through Blue Zones – regions known for high longevity – where commonalities like plant-forward diets, olive oil, legumes, and minimal processed foods define daily life. Longevity is framed as a lifestyle that includes movement, community, and mindfulness, not just dietary choices. The takeaway? Eat less, eat better, and eat with intention.