How Nutrition Can Impact Longevity and Healthspan. The Age Code with Dr David Cox

In this episode of Beyond Longevity, Daphna speaks with Dr David Cox, a health journalist (BBC, The Guardian, The Telegraph, NBC News and others), who holds a PhD in neuroscience from the University of Cambridge and is the author of The Age Code, about how diet, ultra-processed foods and the modern food environment shape biological ageing.

Dr David argues that the longevity conversation often focuses too heavily on future drug breakthroughs, supplements and biohacking, while overlooking lower-hanging fruit that could already have a meaningful impact on long-term health. He explains why reducing ultra-processed foods, increasing fibre intake and paying closer attention to micronutrients such as vitamin K may matter far more than many people realise.

The conversation explores gut ageing and its relationship with immune ageing, possible drivers behind the rise in early-onset cancers, and practical lifestyle strategies that may support healthier ageing. These include slow cooking, eating more protein and calories earlier in the day, lowering dietary acid load through fruits, vegetables and herbs, and the role omega-3s may play in long-term health.

Daphna and Dr David also discuss biological ageing tests, visceral fat, kidney health markers, the limitations of CGMs for the average person, exercise mimetics, affordability within longevity medicine, and whether governments should take a far more active role in tackling the everyday drivers of chronic disease and accelerated ageing.

The Age Code: https://www.amazon.co.uk/dp/0008708878

https://www.instagram.com/drdavidcoxhealth

https://www.linkedin.com/in/dr-david-cox-6b219666

00:00 Welcome and Guest Intro

02:00 From PhD to Journalism

03:17 Science Scepticism and Nuance

05:22 Trust Crisis in Health

06:44 Protein Hype vs Fibre

07:40 Micronutrients Matter

09:07 Inside The Age Code

10:50 Early Onset Cancer Clues

12:38 Gut Ageing Explained

14:49 Ten Nutritional Stressors

17:55 Ultra Processed Food Reality

19:32 Personal Choice vs Policy

23:33 Longevity Focus Misplaced

25:00 Ageing Tests and Omega 3

27:39 Advice for Any Budget

29:48 Sauna Protocols

31:04 Metabolomics Health Snapshots

33:16 Testing Anxiety and Rule of Three

35:41 His Own Biomarker Wake Up

37:41 Best and Overrated Biomarkers

41:25 Exercise Mimetic Drugs Debate

48:05 Government and Ageing Strategy

50:23 Kitchen Takeaways and Seaweed

53:18 Rapid Fire Round

56:08 Final Reflections and Outro

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